<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.bandwidth.com/role/BasicAndDilutedLossIncomePerCommonShare" xlink:href="band-20171231.xsd#BasicAndDilutedLossIncomePerCommonShare" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/BasicAndDilutedLossIncomePerCommonShareAntidilutiveSecuritiesExcludedFromComputationDetails" xlink:href="band-20171231.xsd#BasicAndDilutedLossIncomePerCommonShareAntidilutiveSecuritiesExcludedFromComputationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/BasicAndDilutedLossIncomePerCommonShareComponentsOfBasicAndDilutedEarningsPerShareDetails" xlink:href="band-20171231.xsd#BasicAndDilutedLossIncomePerCommonShareComponentsOfBasicAndDilutedEarningsPerShareDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/BasicAndDilutedLossIncomePerCommonShareTables" xlink:href="band-20171231.xsd#BasicAndDilutedLossIncomePerCommonShareTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/CommitmentsAndContingencies" xlink:href="band-20171231.xsd#CommitmentsAndContingencies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/CommitmentsAndContingenciesContractualObligationsDetails" xlink:href="band-20171231.xsd#CommitmentsAndContingenciesContractualObligationsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/CommitmentsAndContingenciesFutureMinimumLeaseReceiptsDetails" xlink:href="band-20171231.xsd#CommitmentsAndContingenciesFutureMinimumLeaseReceiptsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/CommitmentsAndContingenciesFutureMinimumRentalPaymentsForOperatingLeasesDetails" xlink:href="band-20171231.xsd#CommitmentsAndContingenciesFutureMinimumRentalPaymentsForOperatingLeasesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/CommitmentsAndContingenciesOperatingLeasesDetails" xlink:href="band-20171231.xsd#CommitmentsAndContingenciesOperatingLeasesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/CommitmentsAndContingenciesTables" xlink:href="band-20171231.xsd#CommitmentsAndContingenciesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/ConsolidatedBalanceSheets" xlink:href="band-20171231.xsd#ConsolidatedBalanceSheets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:href="band-20171231.xsd#ConsolidatedBalanceSheetsParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/ConsolidatedStatementsOfCashFlows" xlink:href="band-20171231.xsd#ConsolidatedStatementsOfCashFlows" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/ConsolidatedStatementsOfChangesInRedeemablePreferredStockAndStockholdersDeficitEquity" xlink:href="band-20171231.xsd#ConsolidatedStatementsOfChangesInRedeemablePreferredStockAndStockholdersDeficitEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/ConsolidatedStatementsOfOperationsAndComprehensiveIncomeLoss" xlink:href="band-20171231.xsd#ConsolidatedStatementsOfOperationsAndComprehensiveIncomeLoss" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/Debt" xlink:href="band-20171231.xsd#Debt" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/DebtAdditionalInformationDetails" xlink:href="band-20171231.xsd#DebtAdditionalInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/DebtRemainingPaymentsDueOnCapitalLeaseObligationsDetails" xlink:href="band-20171231.xsd#DebtRemainingPaymentsDueOnCapitalLeaseObligationsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/DebtTables" xlink:href="band-20171231.xsd#DebtTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/DiscontinuedOperations" xlink:href="band-20171231.xsd#DiscontinuedOperations" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/DiscontinuedOperationsAdditionalInformationDetails" xlink:href="band-20171231.xsd#DiscontinuedOperationsAdditionalInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/DiscontinuedOperationsDistributionRecordedAtCarryingAmountDetails" xlink:href="band-20171231.xsd#DiscontinuedOperationsDistributionRecordedAtCarryingAmountDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/DiscontinuedOperationsOperatingResultsOfDiscontinuedOperationsDetails" xlink:href="band-20171231.xsd#DiscontinuedOperationsOperatingResultsOfDiscontinuedOperationsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/DiscontinuedOperationsTables" xlink:href="band-20171231.xsd#DiscontinuedOperationsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/DocumentAndEntityInformationDocumentAndEntityInformation" xlink:href="band-20171231.xsd#DocumentAndEntityInformationDocumentAndEntityInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/EmployeeBenefitPlan" xlink:href="band-20171231.xsd#EmployeeBenefitPlan" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/EmployeeBenefitPlanDetails" xlink:href="band-20171231.xsd#EmployeeBenefitPlanDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/FairValueOfFinancialInstruments" xlink:href="band-20171231.xsd#FairValueOfFinancialInstruments" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/FairValueOfFinancialInstrumentsDetails" xlink:href="band-20171231.xsd#FairValueOfFinancialInstrumentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/FairValueOfFinancialInstrumentsTables" xlink:href="band-20171231.xsd#FairValueOfFinancialInstrumentsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/FinancialStatementComponents" xlink:href="band-20171231.xsd#FinancialStatementComponents" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/FinancialStatementComponentsAccountsReceivableNetOfAllowanceForDoubtfulAccountsDetails" xlink:href="band-20171231.xsd#FinancialStatementComponentsAccountsReceivableNetOfAllowanceForDoubtfulAccountsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/FinancialStatementComponentsAccruedExpensesAndOtherCurrentLiabilitiesDetails" xlink:href="band-20171231.xsd#FinancialStatementComponentsAccruedExpensesAndOtherCurrentLiabilitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/FinancialStatementComponentsAllowanceForDoubtfulAccountsDetails" xlink:href="band-20171231.xsd#FinancialStatementComponentsAllowanceForDoubtfulAccountsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/FinancialStatementComponentsTables" xlink:href="band-20171231.xsd#FinancialStatementComponentsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/IncomeTaxes" xlink:href="band-20171231.xsd#IncomeTaxes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/IncomeTaxesAdditionalInformationDetails" xlink:href="band-20171231.xsd#IncomeTaxesAdditionalInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/IncomeTaxesComponentsOfProvisionBenefitForIncomeTaxesFromContinuingOperationsDetails" xlink:href="band-20171231.xsd#IncomeTaxesComponentsOfProvisionBenefitForIncomeTaxesFromContinuingOperationsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" xlink:href="band-20171231.xsd#IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/IncomeTaxesSignificantComponentsOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:href="band-20171231.xsd#IncomeTaxesSignificantComponentsOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/IncomeTaxesSummaryOfUnrecognizedTaxBenefitsDetails" xlink:href="band-20171231.xsd#IncomeTaxesSummaryOfUnrecognizedTaxBenefitsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/IncomeTaxesTables" xlink:href="band-20171231.xsd#IncomeTaxesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/IntangibleAssets" xlink:href="band-20171231.xsd#IntangibleAssets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/IntangibleAssetsAdditionalInformationDetails" xlink:href="band-20171231.xsd#IntangibleAssetsAdditionalInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/IntangibleAssetsFutureEstimatedAmortizationExpenseDetails" xlink:href="band-20171231.xsd#IntangibleAssetsFutureEstimatedAmortizationExpenseDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/IntangibleAssetsSummaryOfIntangibleAssetsDetails" xlink:href="band-20171231.xsd#IntangibleAssetsSummaryOfIntangibleAssetsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/IntangibleAssetsTables" xlink:href="band-20171231.xsd#IntangibleAssetsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/OrganizationAndDescriptionOfBusiness" xlink:href="band-20171231.xsd#OrganizationAndDescriptionOfBusiness" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/OrganizationAndDescriptionOfBusinessDetails" xlink:href="band-20171231.xsd#OrganizationAndDescriptionOfBusinessDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/PropertyAndEquipment" xlink:href="band-20171231.xsd#PropertyAndEquipment" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/PropertyAndEquipmentAdditionalInformationDetails" xlink:href="band-20171231.xsd#PropertyAndEquipmentAdditionalInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/PropertyAndEquipmentDepreciationExpenseDetails" xlink:href="band-20171231.xsd#PropertyAndEquipmentDepreciationExpenseDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/PropertyAndEquipmentSummaryOfPropertyAndEquipmentNetDetails" xlink:href="band-20171231.xsd#PropertyAndEquipmentSummaryOfPropertyAndEquipmentNetDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/PropertyAndEquipmentTables" xlink:href="band-20171231.xsd#PropertyAndEquipmentTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/RedeemableConvertiblePreferredStockAndStockholdersDeficitEquity" xlink:href="band-20171231.xsd#RedeemableConvertiblePreferredStockAndStockholdersDeficitEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityAdditionalInformationDetails" xlink:href="band-20171231.xsd#RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityAdditionalInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityCommonStockDetails" xlink:href="band-20171231.xsd#RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityCommonStockDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityOptionToPurchaseAdditionalSharesDetails" xlink:href="band-20171231.xsd#RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityOptionToPurchaseAdditionalSharesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityPreferredStockDetails" xlink:href="band-20171231.xsd#RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityPreferredStockDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityRedeemableConvertiblePreferredStockDetails" xlink:href="band-20171231.xsd#RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityRedeemableConvertiblePreferredStockDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/RedeemableConvertiblePreferredStockAndStockholdersDeficitEquitySpinOffDetails" xlink:href="band-20171231.xsd#RedeemableConvertiblePreferredStockAndStockholdersDeficitEquitySpinOffDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityStockPurchaseWarrantsDetails" xlink:href="band-20171231.xsd#RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityStockPurchaseWarrantsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/RelatedParties" xlink:href="band-20171231.xsd#RelatedParties" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/RelatedPartiesDetails" xlink:href="band-20171231.xsd#RelatedPartiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/SegmentAndGeographicInformation" xlink:href="band-20171231.xsd#SegmentAndGeographicInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/SegmentAndGeographicInformationReconciliationOfRevenueByGeographicAreaDetails" xlink:href="band-20171231.xsd#SegmentAndGeographicInformationReconciliationOfRevenueByGeographicAreaDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/SegmentAndGeographicInformationReconciliationOfSegmentProfitLossDetails" xlink:href="band-20171231.xsd#SegmentAndGeographicInformationReconciliationOfSegmentProfitLossDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/SegmentAndGeographicInformationTables" xlink:href="band-20171231.xsd#SegmentAndGeographicInformationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/StockBasedCompensation" xlink:href="band-20171231.xsd#StockBasedCompensation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/StockBasedCompensationAllocatedStockBasedCompensationExpenseDetails" xlink:href="band-20171231.xsd#StockBasedCompensationAllocatedStockBasedCompensationExpenseDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/StockBasedCompensationDetails" xlink:href="band-20171231.xsd#StockBasedCompensationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/StockBasedCompensationFairValueOfOptionsGrantedUsingBlackScholesPricingModelDetails" xlink:href="band-20171231.xsd#StockBasedCompensationFairValueOfOptionsGrantedUsingBlackScholesPricingModelDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/StockBasedCompensationStockOptionActivityDetails" xlink:href="band-20171231.xsd#StockBasedCompensationStockOptionActivityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/StockBasedCompensationTables" xlink:href="band-20171231.xsd#StockBasedCompensationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/SubsequentEvents" xlink:href="band-20171231.xsd#SubsequentEvents" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/SubsequentEventsDetails" xlink:href="band-20171231.xsd#SubsequentEventsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/SubsequentEventsFutureExpectedMinimumLeasePaymentsDetails" xlink:href="band-20171231.xsd#SubsequentEventsFutureExpectedMinimumLeasePaymentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/SubsequentEventsTables" xlink:href="band-20171231.xsd#SubsequentEventsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/SummaryOfSignificantAccountingPolicies" xlink:href="band-20171231.xsd#SummaryOfSignificantAccountingPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/SummaryOfSignificantAccountingPoliciesDetails" xlink:href="band-20171231.xsd#SummaryOfSignificantAccountingPoliciesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:href="band-20171231.xsd#SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.bandwidth.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:href="band-20171231.xsd#SummaryOfSignificantAccountingPoliciesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" xlink:type="simple" />
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/BasicAndDilutedLossIncomePerCommonShare" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_540394A2D58BE55D03037C5175D1BCF0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="loc_us-gaap_EarningsPerShareTextBlock_8B3B070799977EF39A037C5175D124F6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_540394A2D58BE55D03037C5175D1BCF0" xlink:to="loc_us-gaap_EarningsPerShareTextBlock_8B3B070799977EF39A037C5175D124F6" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/BasicAndDilutedLossIncomePerCommonShareAntidilutiveSecuritiesExcludedFromComputationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_87E69DCD8E9D76A06A017C5175A7A3F1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_649E95BD101D86F262707C5175A75116" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_87E69DCD8E9D76A06A017C5175A7A3F1" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_649E95BD101D86F262707C5175A75116" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_22308BC894B36F0D47187C5175A81AE6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_649E95BD101D86F262707C5175A75116" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_22308BC894B36F0D47187C5175A81AE6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_79ECC832C5F1DEBFA5987C5175A89A5E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_22308BC894B36F0D47187C5175A81AE6" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_79ECC832C5F1DEBFA5987C5175A89A5E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RedeemableConvertiblePreferredStockMember" xlink:label="loc_us-gaap_RedeemableConvertiblePreferredStockMember_71BBC7016893DDD17DBA7C5175A88570" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_79ECC832C5F1DEBFA5987C5175A89A5E" xlink:to="loc_us-gaap_RedeemableConvertiblePreferredStockMember_71BBC7016893DDD17DBA7C5175A88570" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_EAC8A14C810C73C2CCF87C5175A89805" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_79ECC832C5F1DEBFA5987C5175A89A5E" xlink:to="loc_us-gaap_EmployeeStockOptionMember_EAC8A14C810C73C2CCF87C5175A89805" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_4CDF9F45ED9FE37D8F4F7C5175A81D45" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_649E95BD101D86F262707C5175A75116" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_4CDF9F45ED9FE37D8F4F7C5175A81D45" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_78A5B8A2AD925BBC74267C5175A8D2F8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_4CDF9F45ED9FE37D8F4F7C5175A81D45" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_78A5B8A2AD925BBC74267C5175A8D2F8" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/BasicAndDilutedLossIncomePerCommonShareComponentsOfBasicAndDilutedEarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_6E7061C96089832F24BEBFBF3686E9DF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract" xlink:label="loc_us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract_2B1F8BE92CB99D766E68BFBF36862860" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_6E7061C96089832F24BEBFBF3686E9DF" xlink:to="loc_us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract_2B1F8BE92CB99D766E68BFBF36862860" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_3FB5DE9BDD49742E1026BFBF36878E87" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract_2B1F8BE92CB99D766E68BFBF36862860" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_3FB5DE9BDD49742E1026BFBF36878E87" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesBasic" xlink:label="loc_us-gaap_UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesBasic_A48E37B05461A91F37EDBFBF368739DE" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract_2B1F8BE92CB99D766E68BFBF36862860" xlink:to="loc_us-gaap_UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesBasic_A48E37B05461A91F37EDBFBF368739DE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_B01E716785A7C74F1CA2BFBF36874D4F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract_2B1F8BE92CB99D766E68BFBF36862860" xlink:to="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_B01E716785A7C74F1CA2BFBF36874D4F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_64A5CBE24E4A21B3B88FBFBF368780D7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_6E7061C96089832F24BEBFBF3686E9DF" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_64A5CBE24E4A21B3B88FBFBF368780D7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_9B36A3AFCC7B57243A5BBFBF36875D5C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_64A5CBE24E4A21B3B88FBFBF368780D7" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_9B36A3AFCC7B57243A5BBFBF36875D5C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_40276C4C8B63DE44079CBFBF368768B7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_64A5CBE24E4A21B3B88FBFBF368780D7" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_40276C4C8B63DE44079CBFBF368768B7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntityAbstract" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntityAbstract_A575E609E24ED0663586BFBF36877ADB" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_6E7061C96089832F24BEBFBF3686E9DF" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntityAbstract_A575E609E24ED0663586BFBF36877ADB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_EA0D57119E3182332600BFBF3687BB3B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntityAbstract_A575E609E24ED0663586BFBF36877ADB" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_EA0D57119E3182332600BFBF3687BB3B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UndistributedDiscontinuedOperationEarningsLossAllocationToParticipatingSecuritiesBasic" xlink:label="loc_us-gaap_UndistributedDiscontinuedOperationEarningsLossAllocationToParticipatingSecuritiesBasic_C34EB944EAFE042593E3BFBF368700E2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntityAbstract_A575E609E24ED0663586BFBF36877ADB" xlink:to="loc_us-gaap_UndistributedDiscontinuedOperationEarningsLossAllocationToParticipatingSecuritiesBasic_C34EB944EAFE042593E3BFBF368700E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic_14846D956B769C26292ABFBF3687F9C2" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntityAbstract_A575E609E24ED0663586BFBF36877ADB" xlink:to="loc_us-gaap_NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic_14846D956B769C26292ABFBF3687F9C2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsAndDisposalOfDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShareAbstract" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsAndDisposalOfDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShareAbstract_D4C7569592F66AE4630ABFBF3687AFB1" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_6E7061C96089832F24BEBFBF3686E9DF" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsAndDisposalOfDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShareAbstract_D4C7569592F66AE4630ABFBF3687AFB1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_36497E26FC2A3E2CFFECBFBF3687A9E9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsAndDisposalOfDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShareAbstract_D4C7569592F66AE4630ABFBF3687AFB1" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_36497E26FC2A3E2CFFECBFBF3687A9E9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_8D8CB8CE8345DA776E6EBFBF368C3E8A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsAndDisposalOfDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShareAbstract_D4C7569592F66AE4630ABFBF3687AFB1" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_8D8CB8CE8345DA776E6EBFBF368C3E8A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossAbstract" xlink:label="loc_us-gaap_NetIncomeLossAbstract_A255949F3C8D75AE2813BFBF368D84B7" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_6E7061C96089832F24BEBFBF3686E9DF" xlink:to="loc_us-gaap_NetIncomeLossAbstract_A255949F3C8D75AE2813BFBF368D84B7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_C2E335F22AB6C6C4E1C7BFBF368D6476" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetIncomeLossAbstract_A255949F3C8D75AE2813BFBF368D84B7" xlink:to="loc_us-gaap_NetIncomeLoss_C2E335F22AB6C6C4E1C7BFBF368D6476" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic" xlink:label="loc_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic_C2F7F095B70BC2D511E0BFBF368DEF4D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetIncomeLossAbstract_A255949F3C8D75AE2813BFBF368D84B7" xlink:to="loc_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic_C2F7F095B70BC2D511E0BFBF368DEF4D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_2D4EDCF4D1652A14E33DBFBF368D9FCF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetIncomeLossAbstract_A255949F3C8D75AE2813BFBF368D84B7" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_2D4EDCF4D1652A14E33DBFBF368D9FCF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_F8392BA118AB974CB09FBFBF368D6947" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_6E7061C96089832F24BEBFBF3686E9DF" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_F8392BA118AB974CB09FBFBF368D6947" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_625B73C340225DE591CEBFBF368DFE7B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_F8392BA118AB974CB09FBFBF368D6947" xlink:to="loc_us-gaap_EarningsPerShareBasic_625B73C340225DE591CEBFBF368DFE7B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_33B1C24756DE571CC058BFBF368DCF67" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_F8392BA118AB974CB09FBFBF368D6947" xlink:to="loc_us-gaap_EarningsPerShareDiluted_33B1C24756DE571CC058BFBF368DCF67" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_54EBF0AC0BE7C495DEF1BFBF368D217D" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_6E7061C96089832F24BEBFBF3686E9DF" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_54EBF0AC0BE7C495DEF1BFBF368D217D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_38BAE03B1CA04C10BD78BFBF368DF1F1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_54EBF0AC0BE7C495DEF1BFBF368D217D" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_38BAE03B1CA04C10BD78BFBF368DF1F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants_A9A0F4DB4EE0A90D6B25BFBF368D9321" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_54EBF0AC0BE7C495DEF1BFBF368D217D" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants_A9A0F4DB4EE0A90D6B25BFBF368D9321" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_A497D36D0C87C0111527BFBF368D97E4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_54EBF0AC0BE7C495DEF1BFBF368D217D" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_A497D36D0C87C0111527BFBF368D97E4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/BasicAndDilutedLossIncomePerCommonShareTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_2FE0B4953C7DE86434C07C5175CA698A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_0D5E73DD4808D0BE91357C5175CA4D18" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_2FE0B4953C7DE86434C07C5175CA698A" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_0D5E73DD4808D0BE91357C5175CA4D18" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_42F5E4BBA3B2EEDCFA147C5175CB4CCA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_2FE0B4953C7DE86434C07C5175CA698A" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_42F5E4BBA3B2EEDCFA147C5175CB4CCA" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/CommitmentsAndContingencies" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_88BA2EC11F205B69BA1F942B35E6ADF1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_6EE66C9B90515845AF5B73FA132CC987" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_88BA2EC11F205B69BA1F942B35E6ADF1" xlink:to="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_6EE66C9B90515845AF5B73FA132CC987" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/CommitmentsAndContingenciesContractualObligationsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_2C51A87D612106BEE68638ED7AADD192" xlink:type="locator" />
    <link:loc xlink:href="band-20171231.xsd#band_OtherCommitmentsFutureMinimumAnnualPayments" xlink:label="loc_band_OtherCommitmentsFutureMinimumAnnualPayments_613E0FD72948E04B362238ED7AADDB40" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_2C51A87D612106BEE68638ED7AADD192" xlink:to="loc_band_OtherCommitmentsFutureMinimumAnnualPayments_613E0FD72948E04B362238ED7AADDB40" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_OtherCommitmentTermofAgreement" xlink:label="loc_band_OtherCommitmentTermofAgreement_565D086C7243D7E5834838ED7AAD7934" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_2C51A87D612106BEE68638ED7AADD192" xlink:to="loc_band_OtherCommitmentTermofAgreement_565D086C7243D7E5834838ED7AAD7934" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_6724D88B6FD28A0DF3C538ED7AADBD3C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_2C51A87D612106BEE68638ED7AADD192" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_6724D88B6FD28A0DF3C538ED7AADBD3C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/CommitmentsAndContingenciesFutureMinimumLeaseReceiptsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_3A6D40A82EC9AE5410B338ED7AB167F3" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_27153278FB434D71A74038ED7AB1E9AD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_3A6D40A82EC9AE5410B338ED7AB167F3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_27153278FB434D71A74038ED7AB1E9AD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_09FF7975C89B144FAD3D38ED7AB16B47" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_3A6D40A82EC9AE5410B338ED7AB167F3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_09FF7975C89B144FAD3D38ED7AB16B47" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears_D6708367B31BFFE9F59738ED7AB1AEFD" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_3A6D40A82EC9AE5410B338ED7AB167F3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears_D6708367B31BFFE9F59738ED7AB1AEFD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears_040D57052B6A0776E47338ED7AB13AB7" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_3A6D40A82EC9AE5410B338ED7AB167F3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears_040D57052B6A0776E47338ED7AB13AB7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears_DBD077B78FE2A719CFF638ED7AB12A92" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_3A6D40A82EC9AE5410B338ED7AB167F3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears_DBD077B78FE2A719CFF638ED7AB12A92" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable_7E94D9BFCA7F3E0BCFAF38ED7AB123A3" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_3A6D40A82EC9AE5410B338ED7AB167F3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable_7E94D9BFCA7F3E0BCFAF38ED7AB123A3" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/CommitmentsAndContingenciesFutureMinimumRentalPaymentsForOperatingLeasesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_DD85E17BB65D1AAC92B0445B46BDD35D" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_A36768128FF2FCC41D79445B46BDF982" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_DD85E17BB65D1AAC92B0445B46BDD35D" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_A36768128FF2FCC41D79445B46BDF982" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_793CEB11FF1A32736116445B46BDB8C8" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_DD85E17BB65D1AAC92B0445B46BDD35D" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_793CEB11FF1A32736116445B46BDB8C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_62638C987A5BE1C2A3F6445B46BD79A7" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_DD85E17BB65D1AAC92B0445B46BDD35D" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_62638C987A5BE1C2A3F6445B46BD79A7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_D0EA5B8C7AFA2B8EC0C7445B46BD1B9C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_DD85E17BB65D1AAC92B0445B46BDD35D" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_D0EA5B8C7AFA2B8EC0C7445B46BD1B9C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_6AE04002DF6ADD5DB25C445B46BD1B6D" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_DD85E17BB65D1AAC92B0445B46BDD35D" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_6AE04002DF6ADD5DB25C445B46BD1B6D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_D113B13BCE6693C4AFD0445B46BDB1C8" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_DD85E17BB65D1AAC92B0445B46BDD35D" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_D113B13BCE6693C4AFD0445B46BDB1C8" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/CommitmentsAndContingenciesOperatingLeasesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_FEAE8778008BEBF0E550C5BBC88952CC" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LesseeLeaseDescriptionTable" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_EAD4D301F800848DF82FC5BBC8896A13" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_FEAE8778008BEBF0E550C5BBC88952CC" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_EAD4D301F800848DF82FC5BBC8896A13" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeaseArrangementTypeAxis" xlink:label="loc_us-gaap_LeaseArrangementTypeAxis_F4A0E2C1F702C4252BA3C5BBC889CE18" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_EAD4D301F800848DF82FC5BBC8896A13" xlink:to="loc_us-gaap_LeaseArrangementTypeAxis_F4A0E2C1F702C4252BA3C5BBC889CE18" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeaseArrangementTypeDomain" xlink:label="loc_us-gaap_LeaseArrangementTypeDomain_F822558B5572BCED4530C5BBC889F3B7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeaseArrangementTypeAxis_F4A0E2C1F702C4252BA3C5BBC889CE18" xlink:to="loc_us-gaap_LeaseArrangementTypeDomain_F822558B5572BCED4530C5BBC889F3B7" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_AmendedOperatingLeaseAgreementOriginalMember" xlink:label="loc_band_AmendedOperatingLeaseAgreementOriginalMember_2B4CDC6E58E18B0065F2C5BBC8897E93" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeaseArrangementTypeDomain_F822558B5572BCED4530C5BBC889F3B7" xlink:to="loc_band_AmendedOperatingLeaseAgreementOriginalMember_2B4CDC6E58E18B0065F2C5BBC8897E93" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_AmendedOperatingLeaseAgreementExtensionMember" xlink:label="loc_band_AmendedOperatingLeaseAgreementExtensionMember_F1676881FB2F6DAF7486C5BBC8896F0C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeaseArrangementTypeDomain_F822558B5572BCED4530C5BBC889F3B7" xlink:to="loc_band_AmendedOperatingLeaseAgreementExtensionMember_F1676881FB2F6DAF7486C5BBC8896F0C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_73F282A26AFC21C9D942C5BBC88953C0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_EAD4D301F800848DF82FC5BBC8896A13" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_73F282A26AFC21C9D942C5BBC88953C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_F5C8BDFB2A594ACA0E96C5BBC889E1D7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_73F282A26AFC21C9D942C5BBC88953C0" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_F5C8BDFB2A594ACA0E96C5BBC889E1D7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseMember" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember_FDA3422766A91A2DD1C4C5BBC88915F5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_F5C8BDFB2A594ACA0E96C5BBC889E1D7" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpenseMember_FDA3422766A91A2DD1C4C5BBC88915F5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LesseeLeaseDescriptionLineItems" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_AE95E1479EC66BD0FD2FC5BBC8899F69" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_EAD4D301F800848DF82FC5BBC8896A13" xlink:to="loc_us-gaap_LesseeLeaseDescriptionLineItems_AE95E1479EC66BD0FD2FC5BBC8899F69" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract" xlink:label="loc_us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract_727EA80BB8766D556776C5BBC8897DAB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_AE95E1479EC66BD0FD2FC5BBC8899F69" xlink:to="loc_us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract_727EA80BB8766D556776C5BBC8897DAB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AreaOfRealEstateProperty" xlink:label="loc_us-gaap_AreaOfRealEstateProperty_2AA60ACA5AFAD05E42EFC5BBC8896496" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_AE95E1479EC66BD0FD2FC5BBC8899F69" xlink:to="loc_us-gaap_AreaOfRealEstateProperty_2AA60ACA5AFAD05E42EFC5BBC8896496" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeaseAndRentalExpense" xlink:label="loc_us-gaap_LeaseAndRentalExpense_D1476C96C152B5AA14F7C5BBC889C636" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_AE95E1479EC66BD0FD2FC5BBC8899F69" xlink:to="loc_us-gaap_LeaseAndRentalExpense_D1476C96C152B5AA14F7C5BBC889C636" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue" xlink:label="loc_us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue_BA2E300D099370CE8FA1C5BBC889192F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_AE95E1479EC66BD0FD2FC5BBC8899F69" xlink:to="loc_us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue_BA2E300D099370CE8FA1C5BBC889192F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/CommitmentsAndContingenciesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_595D67966AA15B12976AB2EB14828FF1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_8590355EC30559C5A628266E144AC131" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_595D67966AA15B12976AB2EB14828FF1" xlink:to="loc_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_8590355EC30559C5A628266E144AC131" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfPropertySubjectToOrAvailableForOperatingLeaseTextBlock" xlink:label="loc_us-gaap_ScheduleOfPropertySubjectToOrAvailableForOperatingLeaseTextBlock_9C7E723F3D36527BBBC1232C3E4AEEE2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_595D67966AA15B12976AB2EB14828FF1" xlink:to="loc_us-gaap_ScheduleOfPropertySubjectToOrAvailableForOperatingLeaseTextBlock_9C7E723F3D36527BBBC1232C3E4AEEE2" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_4F2A1FFE801F50CE2833AE912D5A6FB9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_84A49D1C1859CC03FB19AE912D5A82E3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_4F2A1FFE801F50CE2833AE912D5A6FB9" xlink:to="loc_us-gaap_AssetsAbstract_84A49D1C1859CC03FB19AE912D5A82E3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_54AF1FE6FCAAC38753BEAE912D5B5452" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_84A49D1C1859CC03FB19AE912D5A82E3" xlink:to="loc_us-gaap_AssetsCurrentAbstract_54AF1FE6FCAAC38753BEAE912D5B5452" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_77A71A7E067171667E66AE912D5B6D67" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_54AF1FE6FCAAC38753BEAE912D5B5452" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_77A71A7E067171667E66AE912D5B6D67" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_0EC93484D75F3561AB0FAE912D5B69E7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_54AF1FE6FCAAC38753BEAE912D5B5452" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_0EC93484D75F3561AB0FAE912D5B69E7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_73457A70066499352331AE912D5B60AB" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_54AF1FE6FCAAC38753BEAE912D5B5452" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_73457A70066499352331AE912D5B60AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredCostsCurrent" xlink:label="loc_us-gaap_DeferredCostsCurrent_BFBB57E25D577334AF50AE912D5B958F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_54AF1FE6FCAAC38753BEAE912D5B5452" xlink:to="loc_us-gaap_DeferredCostsCurrent_BFBB57E25D577334AF50AE912D5B958F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_41CF4120D5EC3E470EF6AE912D608C31" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_54AF1FE6FCAAC38753BEAE912D5B5452" xlink:to="loc_us-gaap_AssetsCurrent_41CF4120D5EC3E470EF6AE912D608C31" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_A4BABBF0235900A18B00AE912D60CD27" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_84A49D1C1859CC03FB19AE912D5A82E3" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_A4BABBF0235900A18B00AE912D60CD27" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_6871BF8B3DFB25280A82AE912D613A3E" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_84A49D1C1859CC03FB19AE912D5A82E3" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_6871BF8B3DFB25280A82AE912D613A3E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredCosts" xlink:label="loc_us-gaap_DeferredCosts_45F273327943FC150293AE912D61DD01" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_84A49D1C1859CC03FB19AE912D5A82E3" xlink:to="loc_us-gaap_DeferredCosts_45F273327943FC150293AE912D61DD01" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_4FFD677200A6CAFE1F65AE912D616063" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_84A49D1C1859CC03FB19AE912D5A82E3" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_4FFD677200A6CAFE1F65AE912D616063" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_1894FB5F071D369AB4C6AE912D61572E" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_84A49D1C1859CC03FB19AE912D5A82E3" xlink:to="loc_us-gaap_Goodwill_1894FB5F071D369AB4C6AE912D61572E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxAssetsNet" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_84F1C882092BFEF5EF69AE912D61C093" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_84A49D1C1859CC03FB19AE912D5A82E3" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_84F1C882092BFEF5EF69AE912D61C093" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_8DA9F7AC54AB7A2AACF2AE912D61FA7E" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_84A49D1C1859CC03FB19AE912D5A82E3" xlink:to="loc_us-gaap_Assets_8DA9F7AC54AB7A2AACF2AE912D61FA7E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_B1CEBE242533F8552A9DAE912D6160DA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_4F2A1FFE801F50CE2833AE912D5A6FB9" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_B1CEBE242533F8552A9DAE912D6160DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_B99EDE224C6AC857373BAE912D61D1C9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_B1CEBE242533F8552A9DAE912D6160DA" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_B99EDE224C6AC857373BAE912D61D1C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_5C4372267AC9C8767216AE912D6148C6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_B99EDE224C6AC857373BAE912D61D1C9" xlink:to="loc_us-gaap_AccountsPayableCurrent_5C4372267AC9C8767216AE912D6148C6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_0045219069A16D6B0006AE912D62A319" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_B99EDE224C6AC857373BAE912D61D1C9" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_0045219069A16D6B0006AE912D62A319" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredRevenueCurrent" xlink:label="loc_us-gaap_DeferredRevenueCurrent_F7321D3C2285C41D771DAE912D6280E5" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_B99EDE224C6AC857373BAE912D61D1C9" xlink:to="loc_us-gaap_DeferredRevenueCurrent_F7321D3C2285C41D771DAE912D6280E5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LinesOfCreditCurrent" xlink:label="loc_us-gaap_LinesOfCreditCurrent_CBE1F7B89C93DBD49A08AE912D62D49D" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_B99EDE224C6AC857373BAE912D61D1C9" xlink:to="loc_us-gaap_LinesOfCreditCurrent_CBE1F7B89C93DBD49A08AE912D62D49D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_CF1390BF3C79A1327905AE912D626159" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_B99EDE224C6AC857373BAE912D61D1C9" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_CF1390BF3C79A1327905AE912D626159" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_997DD46998B34E59FBD7AE912D62AF72" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_B99EDE224C6AC857373BAE912D61D1C9" xlink:to="loc_us-gaap_LiabilitiesCurrent_997DD46998B34E59FBD7AE912D62AF72" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_B2F48754CF5887E819C6AE912D6294D0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_B1CEBE242533F8552A9DAE912D6160DA" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_B2F48754CF5887E819C6AE912D6294D0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredRevenueNoncurrent" xlink:label="loc_us-gaap_DeferredRevenueNoncurrent_FE69A7BDDC1EFA23BF9DAE912D626792" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_B1CEBE242533F8552A9DAE912D6160DA" xlink:to="loc_us-gaap_DeferredRevenueNoncurrent_FE69A7BDDC1EFA23BF9DAE912D626792" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_57A743F68F0343DC1EC3AE912D62F18E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_B1CEBE242533F8552A9DAE912D6160DA" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_57A743F68F0343DC1EC3AE912D62F18E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_359F053EF72E1139C2B5AE912D6248FD" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_B1CEBE242533F8552A9DAE912D6160DA" xlink:to="loc_us-gaap_Liabilities_359F053EF72E1139C2B5AE912D6248FD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmountAbstract" xlink:label="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmountAbstract_95DDEF84E8AA2ED29216AE912D63DB1D" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_B1CEBE242533F8552A9DAE912D6160DA" xlink:to="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmountAbstract_95DDEF84E8AA2ED29216AE912D63DB1D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_0D853D49FB6553FDC61DAE912D633CCE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmountAbstract_95DDEF84E8AA2ED29216AE912D63DB1D" xlink:to="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_0D853D49FB6553FDC61DAE912D633CCE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies_306B51C8EC92EB9FE543AE912D63753A" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_B1CEBE242533F8552A9DAE912D6160DA" xlink:to="loc_us-gaap_CommitmentsAndContingencies_306B51C8EC92EB9FE543AE912D63753A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_29321946D821F6D301DFAE912D630768" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_4F2A1FFE801F50CE2833AE912D5A6FB9" xlink:to="loc_us-gaap_StatementTable_29321946D821F6D301DFAE912D630768" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_64CD3AA5F15D49442215AE912D6383F8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_29321946D821F6D301DFAE912D630768" xlink:to="loc_us-gaap_StatementClassOfStockAxis_64CD3AA5F15D49442215AE912D6383F8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_DBB1B161DDD525C5DC4AAE912D638384" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_64CD3AA5F15D49442215AE912D6383F8" xlink:to="loc_us-gaap_ClassOfStockDomain_DBB1B161DDD525C5DC4AAE912D638384" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_DB9D767C2EFA9A8DE633AE912D639447" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_DBB1B161DDD525C5DC4AAE912D638384" xlink:to="loc_us-gaap_CommonClassAMember_DB9D767C2EFA9A8DE633AE912D639447" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_2EBD2A80F3AE33205E60AE912D634783" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_DBB1B161DDD525C5DC4AAE912D638384" xlink:to="loc_us-gaap_CommonClassBMember_2EBD2A80F3AE33205E60AE912D634783" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_OldCommonClassAMember" xlink:label="loc_band_OldCommonClassAMember_4F7752946CE20FF45223AE912D638A87" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_DBB1B161DDD525C5DC4AAE912D638384" xlink:to="loc_band_OldCommonClassAMember_4F7752946CE20FF45223AE912D638A87" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_OldCommonClassBMember" xlink:label="loc_band_OldCommonClassBMember_A8856B8A83472F10B114AE912D63EA56" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_DBB1B161DDD525C5DC4AAE912D638384" xlink:to="loc_band_OldCommonClassBMember_A8856B8A83472F10B114AE912D63EA56" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_331E67DAD717A8546ED4AE912D647B1E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_29321946D821F6D301DFAE912D630768" xlink:to="loc_us-gaap_StatementLineItems_331E67DAD717A8546ED4AE912D647B1E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaap_StockholdersEquityAbstract_3068897BA602F36B4189AE912D64E74A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_331E67DAD717A8546ED4AE912D647B1E" xlink:to="loc_us-gaap_StockholdersEquityAbstract_3068897BA602F36B4189AE912D64E74A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="loc_us-gaap_PreferredStockValue_9772FB10FFA8F66C437BAE912D6460E9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_3068897BA602F36B4189AE912D64E74A" xlink:to="loc_us-gaap_PreferredStockValue_9772FB10FFA8F66C437BAE912D6460E9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue_30638ABA43375C3B070EAE912D64D45B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_3068897BA602F36B4189AE912D64E74A" xlink:to="loc_us-gaap_CommonStockValue_30638ABA43375C3B070EAE912D64D45B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaap_AdditionalPaidInCapital_1E60654BCA371FA866EFAE912D64DA42" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_3068897BA602F36B4189AE912D64E74A" xlink:to="loc_us-gaap_AdditionalPaidInCapital_1E60654BCA371FA866EFAE912D64DA42" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_74D5139963F96F09346DAE912D642A7F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_3068897BA602F36B4189AE912D64E74A" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_74D5139963F96F09346DAE912D642A7F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_ED8A19E19B9491D61B92AE912D640094" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_3068897BA602F36B4189AE912D64E74A" xlink:to="loc_us-gaap_StockholdersEquity_ED8A19E19B9491D61B92AE912D640094" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_DAF11C522A0A8A826D4FAE912D64E1F2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_331E67DAD717A8546ED4AE912D647B1E" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_DAF11C522A0A8A826D4FAE912D64E1F2" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_D225D24AB63334373834CE035FB53B4B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_389D69D250BD97113D8FCE035FB5235B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_D225D24AB63334373834CE035FB53B4B" xlink:to="loc_us-gaap_StatementTable_389D69D250BD97113D8FCE035FB5235B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_AC0A232630A266DD5722CE035FB5DE49" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_389D69D250BD97113D8FCE035FB5235B" xlink:to="loc_us-gaap_StatementClassOfStockAxis_AC0A232630A266DD5722CE035FB5DE49" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_2E5F6D3BDA6C655DEBA9CE035FB50905" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_AC0A232630A266DD5722CE035FB5DE49" xlink:to="loc_us-gaap_ClassOfStockDomain_2E5F6D3BDA6C655DEBA9CE035FB50905" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_OldCommonClassBMember" xlink:label="loc_band_OldCommonClassBMember_EAC44762653C997BBCCDCE035FB52570" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_2E5F6D3BDA6C655DEBA9CE035FB50905" xlink:to="loc_band_OldCommonClassBMember_EAC44762653C997BBCCDCE035FB52570" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_2A9089FB94C47645C86ACE035FB56082" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_2E5F6D3BDA6C655DEBA9CE035FB50905" xlink:to="loc_us-gaap_CommonClassAMember_2A9089FB94C47645C86ACE035FB56082" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_OldCommonClassAMember" xlink:label="loc_band_OldCommonClassAMember_E84C294751B203C59F4ACE035FB538BF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_2E5F6D3BDA6C655DEBA9CE035FB50905" xlink:to="loc_band_OldCommonClassAMember_E84C294751B203C59F4ACE035FB538BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_AFCA4E43BC65EB6BE7D8CE035FB52968" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_2E5F6D3BDA6C655DEBA9CE035FB50905" xlink:to="loc_us-gaap_CommonClassBMember_AFCA4E43BC65EB6BE7D8CE035FB52968" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_EB1635BE0F15334BB875CE035FB562DC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_389D69D250BD97113D8FCE035FB5235B" xlink:to="loc_us-gaap_StatementLineItems_EB1635BE0F15334BB875CE035FB562DC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquityParOrStatedValuePerShare" xlink:label="loc_us-gaap_TemporaryEquityParOrStatedValuePerShare_EF348621916881DCE031CE035FB50BA4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_EB1635BE0F15334BB875CE035FB562DC" xlink:to="loc_us-gaap_TemporaryEquityParOrStatedValuePerShare_EF348621916881DCE031CE035FB50BA4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquitySharesAuthorized" xlink:label="loc_us-gaap_TemporaryEquitySharesAuthorized_60F7E2670A27A3D291A7CE035FB55D2D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_EB1635BE0F15334BB875CE035FB562DC" xlink:to="loc_us-gaap_TemporaryEquitySharesAuthorized_60F7E2670A27A3D291A7CE035FB55D2D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquitySharesIssued" xlink:label="loc_us-gaap_TemporaryEquitySharesIssued_21B08C6D453299E05F58CE035FB5C0C1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_EB1635BE0F15334BB875CE035FB562DC" xlink:to="loc_us-gaap_TemporaryEquitySharesIssued_21B08C6D453299E05F58CE035FB5C0C1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquitySharesOutstanding" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_721F0132B9F2EEE0D25ACE035FB58B94" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_EB1635BE0F15334BB875CE035FB562DC" xlink:to="loc_us-gaap_TemporaryEquitySharesOutstanding_721F0132B9F2EEE0D25ACE035FB58B94" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_199B664E8FA205AB6ECACE035FB576B3" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_EB1635BE0F15334BB875CE035FB562DC" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_199B664E8FA205AB6ECACE035FB576B3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_A6136C9FB7993D0E84AFCE035FB56F96" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_EB1635BE0F15334BB875CE035FB562DC" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_A6136C9FB7993D0E84AFCE035FB56F96" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="loc_us-gaap_PreferredStockSharesIssued_672B259151E3ABD8F471CE035FB53AD6" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_EB1635BE0F15334BB875CE035FB562DC" xlink:to="loc_us-gaap_PreferredStockSharesIssued_672B259151E3ABD8F471CE035FB53AD6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_D8353A0AB48FBC0366D5CE035FB551CB" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_EB1635BE0F15334BB875CE035FB562DC" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_D8353A0AB48FBC0366D5CE035FB551CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_1E41C0547A891068C8E5CE035FB5569B" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_EB1635BE0F15334BB875CE035FB562DC" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_1E41C0547A891068C8E5CE035FB5569B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_463B9DAB3C5862BC0092CE035FB5ABE5" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_EB1635BE0F15334BB875CE035FB562DC" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_463B9DAB3C5862BC0092CE035FB5ABE5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_1DAF8D94698BFC177244CE035FB5886B" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_EB1635BE0F15334BB875CE035FB562DC" xlink:to="loc_us-gaap_CommonStockSharesIssued_1DAF8D94698BFC177244CE035FB5886B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_70942091993424927633CE035FB5ACD8" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_EB1635BE0F15334BB875CE035FB562DC" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_70942091993424927633CE035FB5ACD8" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/ConsolidatedStatementsOfCashFlows" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_F956A33DADDF36997181BF44E8F9249C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_464E69878E0C7BCD8F07BF44E8F9E8C8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_F956A33DADDF36997181BF44E8F9249C" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_464E69878E0C7BCD8F07BF44E8F9E8C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_5B7656D34500FE6472E5BF44E8F964F1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_464E69878E0C7BCD8F07BF44E8F9E8C8" xlink:to="loc_us-gaap_NetIncomeLoss_5B7656D34500FE6472E5BF44E8F964F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_931F66D11C0A059B1C8CBF44E8FF58D2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_464E69878E0C7BCD8F07BF44E8F9E8C8" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_931F66D11C0A059B1C8CBF44E8FF58D2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_00B6FE39D4D63351E783BF44E8FF2654" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_464E69878E0C7BCD8F07BF44E8F9E8C8" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_00B6FE39D4D63351E783BF44E8FF2654" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_DepreciationandAmortizationNetofAmortizationofDebtIssuanceCosts" xlink:label="loc_band_DepreciationandAmortizationNetofAmortizationofDebtIssuanceCosts_F643CA9EB6A0274A16F0BF44E8FF4EAB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_00B6FE39D4D63351E783BF44E8FF2654" xlink:to="loc_band_DepreciationandAmortizationNetofAmortizationofDebtIssuanceCosts_F643CA9EB6A0274A16F0BF44E8FF4EAB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_AEB302AE290CE6A7B87BBF44E8FF88AB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_00B6FE39D4D63351E783BF44E8FF2654" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_AEB302AE290CE6A7B87BBF44E8FF88AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_36E400B7BAD71585F574BF44E8FF29E1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_00B6FE39D4D63351E783BF44E8FF2654" xlink:to="loc_us-gaap_ShareBasedCompensation_36E400B7BAD71585F574BF44E8FF29E1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_ACD8A8743591E0BCA7CDBF44E8FFFBB3" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_00B6FE39D4D63351E783BF44E8FF2654" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_ACD8A8743591E0BCA7CDBF44E8FFFBB3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_CEB0E491456AE06471D3BF44E8FFCDEE" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_00B6FE39D4D63351E783BF44E8FF2654" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_CEB0E491456AE06471D3BF44E8FFCDEE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOfIntangibleAssetsFinitelived" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_689FB557A15224CC2AC1BF44E8FFCDE0" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_00B6FE39D4D63351E783BF44E8FF2654" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_689FB557A15224CC2AC1BF44E8FFCDE0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_F6D3A73081210D9F3A5FBF44E8FFE1F8" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_464E69878E0C7BCD8F07BF44E8F9E8C8" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_F6D3A73081210D9F3A5FBF44E8FFE1F8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_CCB5E883C46145D93458BF44E8FFD6DD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_F6D3A73081210D9F3A5FBF44E8FFE1F8" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_CCB5E883C46145D93458BF44E8FFD6DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_E7B90167C2293144061FBF44E8FFDF94" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_F6D3A73081210D9F3A5FBF44E8FFE1F8" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_E7B90167C2293144061FBF44E8FFDF94" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredCharges" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredCharges_F23B8CFEFF1B27C0F441BF44E8FF37CE" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_F6D3A73081210D9F3A5FBF44E8FFE1F8" xlink:to="loc_us-gaap_IncreaseDecreaseInDeferredCharges_F23B8CFEFF1B27C0F441BF44E8FF37CE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_487E6CA4122AD05D3181BF44E8FFB742" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_F6D3A73081210D9F3A5FBF44E8FFE1F8" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_487E6CA4122AD05D3181BF44E8FFB742" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_483C981052EAE62A0AD5BF44E8FF6777" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_F6D3A73081210D9F3A5FBF44E8FFE1F8" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_483C981052EAE62A0AD5BF44E8FF6777" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_E8661361DB5BC9FE8ACCBF44E8FF657C" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_F6D3A73081210D9F3A5FBF44E8FFE1F8" xlink:to="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_E8661361DB5BC9FE8ACCBF44E8FF657C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_4606DBF0288D75F50263BF44E8FFF6BD" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_464E69878E0C7BCD8F07BF44E8F9E8C8" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_4606DBF0288D75F50263BF44E8FFF6BD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" xlink:label="loc_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_D91CF0859B82B8CA7E34BF44E900C1EA" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_464E69878E0C7BCD8F07BF44E8F9E8C8" xlink:to="loc_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_D91CF0859B82B8CA7E34BF44E900C1EA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_22F9980A57A5105286D6BF44E9006337" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_464E69878E0C7BCD8F07BF44E8F9E8C8" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_22F9980A57A5105286D6BF44E9006337" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9F95FEE8C55BE3E7C605BF44E90089E9" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_F956A33DADDF36997181BF44E8F9249C" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9F95FEE8C55BE3E7C605BF44E90089E9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_A125E11A8275BD6F87E7BF44E9001830" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9F95FEE8C55BE3E7C605BF44E90089E9" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_A125E11A8275BD6F87E7BF44E9001830" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToDevelopSoftware" xlink:label="loc_us-gaap_PaymentsToDevelopSoftware_889DD18C366E62CC7B03BF44E900311D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9F95FEE8C55BE3E7C605BF44E90089E9" xlink:to="loc_us-gaap_PaymentsToDevelopSoftware_889DD18C366E62CC7B03BF44E900311D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_31FB9D646FB254F1630BBF44E9004A0C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9F95FEE8C55BE3E7C605BF44E90089E9" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_31FB9D646FB254F1630BBF44E9004A0C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations" xlink:label="loc_us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations_8A922A8B049B339FAE57BF44E90027AB" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9F95FEE8C55BE3E7C605BF44E90089E9" xlink:to="loc_us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations_8A922A8B049B339FAE57BF44E90027AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_9765A7B3F806173DEC5BBF44E90076C0" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9F95FEE8C55BE3E7C605BF44E90089E9" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_9765A7B3F806173DEC5BBF44E90076C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_55BB23E57CBAE39C5236BF44E900CDE4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_F956A33DADDF36997181BF44E8F9249C" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_55BB23E57CBAE39C5236BF44E900CDE4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromLinesOfCredit" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_84564BFA5718FF7139BBBF44E900AB5F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_55BB23E57CBAE39C5236BF44E900CDE4" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_84564BFA5718FF7139BBBF44E900AB5F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RepaymentsOfLinesOfCredit" xlink:label="loc_us-gaap_RepaymentsOfLinesOfCredit_35DEC3ED493D4D447F62BF44E9006E49" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_55BB23E57CBAE39C5236BF44E900CDE4" xlink:to="loc_us-gaap_RepaymentsOfLinesOfCredit_35DEC3ED493D4D447F62BF44E9006E49" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RepaymentsOfLongTermCapitalLeaseObligations" xlink:label="loc_us-gaap_RepaymentsOfLongTermCapitalLeaseObligations_C926492187F7B8877145BF44E9003387" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_55BB23E57CBAE39C5236BF44E900CDE4" xlink:to="loc_us-gaap_RepaymentsOfLongTermCapitalLeaseObligations_C926492187F7B8877145BF44E9003387" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSecuredDebt" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSecuredDebt_2D28C0A32BAFAF4F9882BF44E900BECF" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_55BB23E57CBAE39C5236BF44E900CDE4" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSecuredDebt_2D28C0A32BAFAF4F9882BF44E900BECF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RepaymentsOfSecuredDebt" xlink:label="loc_us-gaap_RepaymentsOfSecuredDebt_CC4F5A06C2B266532752BF44E90037AC" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_55BB23E57CBAE39C5236BF44E900CDE4" xlink:to="loc_us-gaap_RepaymentsOfSecuredDebt_CC4F5A06C2B266532752BF44E90037AC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_1DFB0455E725B6A8A09CBF44E901A6FB" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_55BB23E57CBAE39C5236BF44E900CDE4" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_1DFB0455E725B6A8A09CBF44E901A6FB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsOfStockIssuanceCosts" xlink:label="loc_us-gaap_PaymentsOfStockIssuanceCosts_B6A10BB1958E07FEDC83BF7F0026D162" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_55BB23E57CBAE39C5236BF44E900CDE4" xlink:to="loc_us-gaap_PaymentsOfStockIssuanceCosts_B6A10BB1958E07FEDC83BF7F0026D162" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromIssuanceInitialPublicOffering" xlink:label="loc_us-gaap_ProceedsFromIssuanceInitialPublicOffering_ADF5CD82F5C3461BA737BF788FF7AAD7" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_55BB23E57CBAE39C5236BF44E900CDE4" xlink:to="loc_us-gaap_ProceedsFromIssuanceInitialPublicOffering_ADF5CD82F5C3461BA737BF788FF7AAD7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_65DBDB1A7136E62D1C17BF44E901F94E" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_55BB23E57CBAE39C5236BF44E900CDE4" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_65DBDB1A7136E62D1C17BF44E901F94E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromWarrantExercises" xlink:label="loc_us-gaap_ProceedsFromWarrantExercises_BC0623F766EEEE263C6CBF44E9017042" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_55BB23E57CBAE39C5236BF44E900CDE4" xlink:to="loc_us-gaap_ProceedsFromWarrantExercises_BC0623F766EEEE263C6CBF44E9017042" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsOfCapitalDistribution" xlink:label="loc_us-gaap_PaymentsOfCapitalDistribution_4EE813E00A32A441F64EBF44E901F502" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_55BB23E57CBAE39C5236BF44E900CDE4" xlink:to="loc_us-gaap_PaymentsOfCapitalDistribution_4EE813E00A32A441F64EBF44E901F502" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities_6A138D3544120A04281EBF44E9011F9A" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_55BB23E57CBAE39C5236BF44E900CDE4" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities_6A138D3544120A04281EBF44E9011F9A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_01AE5D0C676D30547864BF44E901B63A" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_55BB23E57CBAE39C5236BF44E900CDE4" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_01AE5D0C676D30547864BF44E901B63A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_7667AB6F3E6F89B0C868BF44E9011E51" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_F956A33DADDF36997181BF44E8F9249C" xlink:to="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_7667AB6F3E6F89B0C868BF44E9011E51" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_DE2DE1B2CB270974A17FBF44E90163C6" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_F956A33DADDF36997181BF44E8F9249C" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_DE2DE1B2CB270974A17FBF44E90163C6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_91377615771F52BF1753BF44E901F974" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_F956A33DADDF36997181BF44E8F9249C" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_91377615771F52BF1753BF44E901F974" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_856F683AC8F04A843A3FBF44E9016EEF" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_F956A33DADDF36997181BF44E8F9249C" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_856F683AC8F04A843A3FBF44E9016EEF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestPaid" xlink:label="loc_us-gaap_InterestPaid_7C6FA738434A80C3E29FBF44E901768F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_856F683AC8F04A843A3FBF44E9016EEF" xlink:to="loc_us-gaap_InterestPaid_7C6FA738434A80C3E29FBF44E901768F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxesPaid" xlink:label="loc_us-gaap_IncomeTaxesPaid_2DE454DEE5A07517E507BF44E90111B4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_856F683AC8F04A843A3FBF44E9016EEF" xlink:to="loc_us-gaap_IncomeTaxesPaid_2DE454DEE5A07517E507BF44E90111B4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:label="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_B4765B55270B484B564FBF44E906E00E" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_F956A33DADDF36997181BF44E8F9249C" xlink:to="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_B4765B55270B484B564FBF44E906E00E" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_NonCashDistributionofNetLiabilities" xlink:label="loc_band_NonCashDistributionofNetLiabilities_6434C9E819A4E47D6CBEBF44E906B98D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_B4765B55270B484B564FBF44E906E00E" xlink:to="loc_band_NonCashDistributionofNetLiabilities_6434C9E819A4E47D6CBEBF44E906B98D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeaseObligationsIncurred" xlink:label="loc_us-gaap_CapitalLeaseObligationsIncurred_D6C9E37E46E6C6E5FC7BBF44E9078F8A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_B4765B55270B484B564FBF44E906E00E" xlink:to="loc_us-gaap_CapitalLeaseObligationsIncurred_D6C9E37E46E6C6E5FC7BBF44E9078F8A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/ConsolidatedStatementsOfChangesInRedeemablePreferredStockAndStockholdersDeficitEquity" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_9408A7234EF012A4E6E4CE035F869C99" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_17D7CF1773738F9D74E7CE035F86E533" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_9408A7234EF012A4E6E4CE035F869C99" xlink:to="loc_us-gaap_StatementTable_17D7CF1773738F9D74E7CE035F86E533" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_55BA97C13D72EA893866CE035F86B354" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_17D7CF1773738F9D74E7CE035F86E533" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_55BA97C13D72EA893866CE035F86B354" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_F66FFDC4222894DB1710CE035F864411" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_55BA97C13D72EA893866CE035F86B354" xlink:to="loc_us-gaap_EquityComponentDomain_F66FFDC4222894DB1710CE035F864411" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_574A40461023F9AB2EB7CE035F86318A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_F66FFDC4222894DB1710CE035F864411" xlink:to="loc_us-gaap_CommonStockMember_574A40461023F9AB2EB7CE035F86318A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_4AAA0F172721ED28342ECE035F86511F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_F66FFDC4222894DB1710CE035F864411" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_4AAA0F172721ED28342ECE035F86511F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_8068F0957AF817D5D69BCE035F86F76F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_F66FFDC4222894DB1710CE035F864411" xlink:to="loc_us-gaap_RetainedEarningsMember_8068F0957AF817D5D69BCE035F86F76F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_616F6FB9B636B27A5E9FCE035F860D4C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_17D7CF1773738F9D74E7CE035F86E533" xlink:to="loc_us-gaap_StatementClassOfStockAxis_616F6FB9B636B27A5E9FCE035F860D4C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_8FAF3B1160E3E3FED4EBCE035F86C248" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_616F6FB9B636B27A5E9FCE035F860D4C" xlink:to="loc_us-gaap_ClassOfStockDomain_8FAF3B1160E3E3FED4EBCE035F86C248" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_0D306D8F5A3C6471AC1CCE035F86A06C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_8FAF3B1160E3E3FED4EBCE035F86C248" xlink:to="loc_us-gaap_CommonClassAMember_0D306D8F5A3C6471AC1CCE035F86A06C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_99694B415E2405829DFFCE035F86C7AD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_8FAF3B1160E3E3FED4EBCE035F86C248" xlink:to="loc_us-gaap_CommonClassBMember_99694B415E2405829DFFCE035F86C7AD" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_OldCommonClassAMember" xlink:label="loc_band_OldCommonClassAMember_62314AB6D4655603BBBFCE035F86CCD7" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_8FAF3B1160E3E3FED4EBCE035F86C248" xlink:to="loc_band_OldCommonClassAMember_62314AB6D4655603BBBFCE035F86CCD7" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_OldCommonClassBMember" xlink:label="loc_band_OldCommonClassBMember_632D9C26BB045C0651BACE035F86067F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_8FAF3B1160E3E3FED4EBCE035F86C248" xlink:to="loc_band_OldCommonClassBMember_632D9C26BB045C0651BACE035F86067F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConversionOfStockByUniqueDescriptionAxis" xlink:label="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_C12E36BFEBA14C32A86FCE035F86F3A7" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_17D7CF1773738F9D74E7CE035F86E533" xlink:to="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_C12E36BFEBA14C32A86FCE035F86F3A7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConversionOfStockNameDomain" xlink:label="loc_us-gaap_ConversionOfStockNameDomain_D223356089B5AF3D1194CE035F86A9A5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_C12E36BFEBA14C32A86FCE035F86F3A7" xlink:to="loc_us-gaap_ConversionOfStockNameDomain_D223356089B5AF3D1194CE035F86A9A5" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_SeriesAPreferredStocktoOldClassAVotingCommonStockMember" xlink:label="loc_band_SeriesAPreferredStocktoOldClassAVotingCommonStockMember_10E5F8A1D1F28927F704CE035F86411B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockNameDomain_D223356089B5AF3D1194CE035F86A9A5" xlink:to="loc_band_SeriesAPreferredStocktoOldClassAVotingCommonStockMember_10E5F8A1D1F28927F704CE035F86411B" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_OldClassBNonvotingStocktoClassAVotingCommonStockMember" xlink:label="loc_band_OldClassBNonvotingStocktoClassAVotingCommonStockMember_412C208774619F3FDF7ECE035F86B973" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockNameDomain_D223356089B5AF3D1194CE035F86A9A5" xlink:to="loc_band_OldClassBNonvotingStocktoClassAVotingCommonStockMember_412C208774619F3FDF7ECE035F86B973" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_ClassBVotingCommonStocktoClassAVotingCommonStockMember" xlink:label="loc_band_ClassBVotingCommonStocktoClassAVotingCommonStockMember_1C256B85853FB3813686CE035F868D43" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockNameDomain_D223356089B5AF3D1194CE035F86A9A5" xlink:to="loc_band_ClassBVotingCommonStocktoClassAVotingCommonStockMember_1C256B85853FB3813686CE035F868D43" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_AFF5B1A26C7EE0FDD0E2CE035F862546" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_17D7CF1773738F9D74E7CE035F86E533" xlink:to="loc_us-gaap_StatementLineItems_AFF5B1A26C7EE0FDD0E2CE035F862546" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInTemporaryEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_F9883CF8612BF89AF200CE035F869E48" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_AFF5B1A26C7EE0FDD0E2CE035F862546" xlink:to="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_F9883CF8612BF89AF200CE035F869E48" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquitySharesOutstanding" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_BFB6A9525A979E2185AECE035F8679D2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_F9883CF8612BF89AF200CE035F869E48" xlink:to="loc_us-gaap_TemporaryEquitySharesOutstanding_BFB6A9525A979E2185AECE035F8679D2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests_1B5F872FB239FD4CA6B6CE035F86EB9A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_F9883CF8612BF89AF200CE035F869E48" xlink:to="loc_us-gaap_TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests_1B5F872FB239FD4CA6B6CE035F86EB9A" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_TemporaryEquitySharesConverted" xlink:label="loc_band_TemporaryEquitySharesConverted_FF64BD82A4C8F0D3FD49CE035F869FE1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_F9883CF8612BF89AF200CE035F869E48" xlink:to="loc_band_TemporaryEquitySharesConverted_FF64BD82A4C8F0D3FD49CE035F869FE1" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_TemporaryEquityAmountConverted" xlink:label="loc_band_TemporaryEquityAmountConverted_EDC6302B562806810257CE035F86D6CC" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_F9883CF8612BF89AF200CE035F869E48" xlink:to="loc_band_TemporaryEquityAmountConverted_EDC6302B562806810257CE035F86D6CC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquitySharesOutstanding" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_875C0B26A5EB18CB1C78CE035F86496A" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_F9883CF8612BF89AF200CE035F869E48" xlink:to="loc_us-gaap_TemporaryEquitySharesOutstanding_875C0B26A5EB18CB1C78CE035F86496A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests_F742227A71F3D743BB7CCE035F8623ED" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_F9883CF8612BF89AF200CE035F869E48" xlink:to="loc_us-gaap_TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests_F742227A71F3D743BB7CCE035F8623ED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_AFF5B1A26C7EE0FDD0E2CE035F862546" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_EB10FCBFFDC80E604B36CE035F86D78D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_EB10FCBFFDC80E604B36CE035F86D78D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_170FB7BDB7253C68D8D4CE035F8637A1" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_us-gaap_StockholdersEquity_170FB7BDB7253C68D8D4CE035F8637A1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_A1FA5455B9941E8E8C85CE035F86CB45" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_A1FA5455B9941E8E8C85CE035F86CB45" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_112FCCF6824B57BCEAACCE035F861605" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_112FCCF6824B57BCEAACCE035F861605" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_StockIssuedDuringPeriodSharesWarrantsExercised" xlink:label="loc_band_StockIssuedDuringPeriodSharesWarrantsExercised_476BD705CA82C2DA1FFDCE035F868024" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_band_StockIssuedDuringPeriodSharesWarrantsExercised_476BD705CA82C2DA1FFDCE035F868024" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_StockIssuedDuringPeriodValueWarrantsExercised" xlink:label="loc_band_StockIssuedDuringPeriodValueWarrantsExercised_31B221EF72E708BCD954CE035F86F0EB" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_band_StockIssuedDuringPeriodValueWarrantsExercised_31B221EF72E708BCD954CE035F86F0EB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteSpinoffTransaction" xlink:label="loc_us-gaap_StockholdersEquityNoteSpinoffTransaction_9E03FFF8957BBDAD5001CE035F86894D" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_us-gaap_StockholdersEquityNoteSpinoffTransaction_9E03FFF8957BBDAD5001CE035F86894D" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_AdjustmentstoAdditionalPaidinCapitalShareholderAntiDilutiveAgreement" xlink:label="loc_band_AdjustmentstoAdditionalPaidinCapitalShareholderAntiDilutiveAgreement_BD73259F7C02BE349433CE035F86B250" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_band_AdjustmentstoAdditionalPaidinCapitalShareholderAntiDilutiveAgreement_BD73259F7C02BE349433CE035F86B250" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption" xlink:label="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_ECE8153A70DD35943746CE035F86903C" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_ECE8153A70DD35943746CE035F86903C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_3E32896EE6937ED85B9ACE035F86A334" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_3E32896EE6937ED85B9ACE035F86A334" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodShares" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_A054F8FE586B0652F948CE035F86828E" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_A054F8FE586B0652F948CE035F86828E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodValue" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_200FEB38716C285BB8D8CE035F866E10" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_200FEB38716C285BB8D8CE035F866E10" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_773AAECF016438F6CA6DCE035F86087B" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_773AAECF016438F6CA6DCE035F86087B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_C4CC925D6376C46FEADACE035F863D9A" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_C4CC925D6376C46FEADACE035F863D9A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts_959DEC054BA7B8D07D46CE035F86B3AA" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts_959DEC054BA7B8D07D46CE035F86B3AA" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_AdjustmentstoAdditionalPaidinCapitalTerminationofShareholdersAntidilutiveAgreement" xlink:label="loc_band_AdjustmentstoAdditionalPaidinCapitalTerminationofShareholdersAntidilutiveAgreement_BDE1FE879156308EE1CECE035F8681DB" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_band_AdjustmentstoAdditionalPaidinCapitalTerminationofShareholdersAntidilutiveAgreement_BDE1FE879156308EE1CECE035F8681DB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_6D8AF9CEFB4E20DEE7C9CE035F86BD0E" xlink:type="locator" />
    <link:presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_us-gaap_NetIncomeLoss_6D8AF9CEFB4E20DEE7C9CE035F86BD0E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_F24AD9429A78AEF6BDFBCE035F86AA1D" xlink:type="locator" />
    <link:presentationArc order="18" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_F24AD9429A78AEF6BDFBCE035F86AA1D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_0808DF4B062303E2CC26CE035F86591C" xlink:type="locator" />
    <link:presentationArc order="19" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6F76191FC97E42DF6778CE035F86270B" xlink:to="loc_us-gaap_StockholdersEquity_0808DF4B062303E2CC26CE035F86591C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/ConsolidatedStatementsOfOperationsAndComprehensiveIncomeLoss" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="loc_us-gaap_RevenuesAbstract_CC0A49322B2A6D0FFBB3BFBF386FB53F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_RevenuesAbstract_CC0A49322B2A6D0FFBB3BFBF386FB53F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SalesRevenueServicesNet" xlink:label="loc_us-gaap_SalesRevenueServicesNet_6D50E6F641621A9ED80ABFBF386FCB10" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenuesAbstract_CC0A49322B2A6D0FFBB3BFBF386FB53F" xlink:to="loc_us-gaap_SalesRevenueServicesNet_6D50E6F641621A9ED80ABFBF386FCB10" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherSalesRevenueNet" xlink:label="loc_us-gaap_OtherSalesRevenueNet_4EE6637365E4D56D2C0BBFBF386FD00E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenuesAbstract_CC0A49322B2A6D0FFBB3BFBF386FB53F" xlink:to="loc_us-gaap_OtherSalesRevenueNet_4EE6637365E4D56D2C0BBFBF386FD00E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_25A51B0FE43C79681F05BFBF386FB43A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenuesAbstract_CC0A49322B2A6D0FFBB3BFBF386FB53F" xlink:to="loc_us-gaap_Revenues_25A51B0FE43C79681F05BFBF386FB43A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfRevenueAbstract" xlink:label="loc_us-gaap_CostOfRevenueAbstract_75E72AFE5576E3444E34BFBF386FC3F3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_CostOfRevenueAbstract_75E72AFE5576E3444E34BFBF386FC3F3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfServices" xlink:label="loc_us-gaap_CostOfServices_C76932DB4E162FE28410BFBF387044C1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostOfRevenueAbstract_75E72AFE5576E3444E34BFBF386FC3F3" xlink:to="loc_us-gaap_CostOfServices_C76932DB4E162FE28410BFBF387044C1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherCostOfOperatingRevenue" xlink:label="loc_us-gaap_OtherCostOfOperatingRevenue_5F360C3C94F5D72A2560BFBF38707E34" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostOfRevenueAbstract_75E72AFE5576E3444E34BFBF386FC3F3" xlink:to="loc_us-gaap_OtherCostOfOperatingRevenue_5F360C3C94F5D72A2560BFBF38707E34" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfRevenue" xlink:label="loc_us-gaap_CostOfRevenue_03C8C74D076465B2BE57BFBF3870E07D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostOfRevenueAbstract_75E72AFE5576E3444E34BFBF386FC3F3" xlink:to="loc_us-gaap_CostOfRevenue_03C8C74D076465B2BE57BFBF3870E07D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_0F6F68C3C0A4710E1CAEBFBF38706C9A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_GrossProfit_0F6F68C3C0A4710E1CAEBFBF38706C9A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaap_OperatingExpensesAbstract_75179EFBB6FA14DA7FA9BFBF387064FA" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_OperatingExpensesAbstract_75179EFBB6FA14DA7FA9BFBF387064FA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_305020A04BD5EA3E0091BFBF3870B5E4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_75179EFBB6FA14DA7FA9BFBF387064FA" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_305020A04BD5EA3E0091BFBF3870B5E4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SellingAndMarketingExpense" xlink:label="loc_us-gaap_SellingAndMarketingExpense_6058A8817BB3D870A2D8BFBF38706DD3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_75179EFBB6FA14DA7FA9BFBF387064FA" xlink:to="loc_us-gaap_SellingAndMarketingExpense_6058A8817BB3D870A2D8BFBF38706DD3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_ED2F0616E6CE43606A78BFBF38702E48" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_75179EFBB6FA14DA7FA9BFBF387064FA" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_ED2F0616E6CE43606A78BFBF38702E48" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaap_OperatingExpenses_1CC1661941172F9491B1BFBF38708F3A" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_75179EFBB6FA14DA7FA9BFBF387064FA" xlink:to="loc_us-gaap_OperatingExpenses_1CC1661941172F9491B1BFBF38708F3A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_9653806CCE9A28BDF6B8BFBF387026D3" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_OperatingIncomeLoss_9653806CCE9A28BDF6B8BFBF387026D3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpenseAbstract" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpenseAbstract_DECABC01C178F9194127BFBF387074F0" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpenseAbstract_DECABC01C178F9194127BFBF387074F0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeExpenseNet" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_233688E374FAA2161ABBBFBF38703443" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpenseAbstract_DECABC01C178F9194127BFBF387074F0" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_233688E374FAA2161ABBBFBF38703443" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherExpenses" xlink:label="loc_us-gaap_OtherExpenses_54CC18C87F64E300F663BFBF38706EDF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpenseAbstract_DECABC01C178F9194127BFBF387074F0" xlink:to="loc_us-gaap_OtherExpenses_54CC18C87F64E300F663BFBF38706EDF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_641BBB81831B3E668B3EBFBF38706476" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_641BBB81831B3E668B3EBFBF38706476" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_0D3A8D7134AD72C30289BFBF38701947" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_0D3A8D7134AD72C30289BFBF38701947" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_22024CA27DC65876F598BFBF38700F1E" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_22024CA27DC65876F598BFBF38700F1E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_71078AFD4148BD4480BEBFBF3870A4D6" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_71078AFD4148BD4480BEBFBF3870A4D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_C33A930D73621040C265BFBF3870AB4D" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_NetIncomeLoss_C33A930D73621040C265BFBF3870AB4D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_24C02A56E374B576B3EBBFBF387130F4" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_24C02A56E374B576B3EBBFBF387130F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesBasic" xlink:label="loc_us-gaap_UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesBasic_5DAFAE652D36CE5CB17EBFBF3871F80F" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesBasic_5DAFAE652D36CE5CB17EBFBF3871F80F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_A5778BCB614D97EC30B9BFBF38713022" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_A5778BCB614D97EC30B9BFBF38713022" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_13C1536DBB5C25FC42FABFBF3871DF0A" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_13C1536DBB5C25FC42FABFBF3871DF0A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_86ACCC40B4FE636806E7BFBF387143EC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_13C1536DBB5C25FC42FABFBF3871DF0A" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_86ACCC40B4FE636806E7BFBF387143EC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_CC757BB3CFBF590ECE34BFBF38713D3E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_13C1536DBB5C25FC42FABFBF3871DF0A" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_CC757BB3CFBF590ECE34BFBF38713D3E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic" xlink:label="loc_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic_87D3A78C75EF44E5DBB7BFBF3871F993" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic_87D3A78C75EF44E5DBB7BFBF3871F993" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_6FBBF6B1EABFB593440BBFBF3871F588" xlink:type="locator" />
    <link:presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_6FBBF6B1EABFB593440BBFBF3871F588" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_EF4207F720091202A23ABFBF3871025F" xlink:type="locator" />
    <link:presentationArc order="18" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_EF4207F720091202A23ABFBF3871025F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_7BE3ABB4173F48CFDF61BFBF38716A94" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_EF4207F720091202A23ABFBF3871025F" xlink:to="loc_us-gaap_EarningsPerShareBasic_7BE3ABB4173F48CFDF61BFBF38716A94" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_11384FFA38285A2076A5BFBF3871E9B1" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_EF4207F720091202A23ABFBF3871025F" xlink:to="loc_us-gaap_EarningsPerShareDiluted_11384FFA38285A2076A5BFBF3871E9B1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_BF51EBBCFDBB7C1D3847BFBF387124C5" xlink:type="locator" />
    <link:presentationArc order="19" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_DD1A8D5B582A13BC5B76BFBF386F13E1" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_BF51EBBCFDBB7C1D3847BFBF387124C5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_51D55DAF3CDB0CF7A012BFBF38718448" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_BF51EBBCFDBB7C1D3847BFBF387124C5" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_51D55DAF3CDB0CF7A012BFBF38718448" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_7808C8EE44BB3B49FCB3BFBF38719A58" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_BF51EBBCFDBB7C1D3847BFBF387124C5" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_7808C8EE44BB3B49FCB3BFBF38719A58" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/Debt" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_F7C5C7D39072563CA0B9ED7068A9A70E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtDisclosureTextBlock" xlink:label="loc_us-gaap_DebtDisclosureTextBlock_17B1FCE5C7CB59C4BA3BE368430CFA24" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_F7C5C7D39072563CA0B9ED7068A9A70E" xlink:to="loc_us-gaap_DebtDisclosureTextBlock_17B1FCE5C7CB59C4BA3BE368430CFA24" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/DebtAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_7969BAC58E379129833F445B46FF1CAB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_C9C9589070B0AC74B6A1445B46FF11AA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_7969BAC58E379129833F445B46FF1CAB" xlink:to="loc_us-gaap_DebtInstrumentTable_C9C9589070B0AC74B6A1445B46FF11AA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_7D012D6C9A0BDBE62F16445B46FF8B0F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_C9C9589070B0AC74B6A1445B46FF11AA" xlink:to="loc_us-gaap_CreditFacilityAxis_7D012D6C9A0BDBE62F16445B46FF8B0F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_A90A9C90FF9BF4209459445B46FF4EEA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityAxis_7D012D6C9A0BDBE62F16445B46FF8B0F" xlink:to="loc_us-gaap_CreditFacilityDomain_A90A9C90FF9BF4209459445B46FF4EEA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevolvingCreditFacilityMember" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_39347FB87C773B0444EA445B46FF32D6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_A90A9C90FF9BF4209459445B46FF4EEA" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_39347FB87C773B0444EA445B46FF32D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_90D0102CF8EF6C522EA5445B46FF3E8E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_C9C9589070B0AC74B6A1445B46FF11AA" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_90D0102CF8EF6C522EA5445B46FF3E8E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_94CF7121C924CE037397445B470054DC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_90D0102CF8EF6C522EA5445B46FF3E8E" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_94CF7121C924CE037397445B470054DC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecuredDebtMember" xlink:label="loc_us-gaap_SecuredDebtMember_F1D3C70813E2B39FA8F8445B47008315" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_94CF7121C924CE037397445B470054DC" xlink:to="loc_us-gaap_SecuredDebtMember_F1D3C70813E2B39FA8F8445B47008315" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_822C846985367C895D91445B47005B3F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_C9C9589070B0AC74B6A1445B46FF11AA" xlink:to="loc_us-gaap_RangeAxis_822C846985367C895D91445B47005B3F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_2EC9B98042754F7901A4445B4700FC3B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_822C846985367C895D91445B47005B3F" xlink:to="loc_us-gaap_RangeMember_2EC9B98042754F7901A4445B4700FC3B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_7EA7333533CB4C309D4D445B47007A9C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_2EC9B98042754F7901A4445B4700FC3B" xlink:to="loc_us-gaap_MaximumMember_7EA7333533CB4C309D4D445B47007A9C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_B5E4347C575778AAF0F7445B47006101" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_C9C9589070B0AC74B6A1445B46FF11AA" xlink:to="loc_us-gaap_DebtInstrumentLineItems_B5E4347C575778AAF0F7445B47006101" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_8F22F0AE6F16F6377BBB445B4700020D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_B5E4347C575778AAF0F7445B47006101" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_8F22F0AE6F16F6377BBB445B4700020D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCredit" xlink:label="loc_us-gaap_LineOfCredit_2148C60B66AE1FB701AF445B47001C1E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_B5E4347C575778AAF0F7445B47006101" xlink:to="loc_us-gaap_LineOfCredit_2148C60B66AE1FB701AF445B47001C1E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_089917490FEAB8D87986445B47008FE9" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_B5E4347C575778AAF0F7445B47006101" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_089917490FEAB8D87986445B47008FE9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BridgeLoan" xlink:label="loc_us-gaap_BridgeLoan_0A4C19F2B527CD904FF3445B47008B25" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_B5E4347C575778AAF0F7445B47006101" xlink:to="loc_us-gaap_BridgeLoan_0A4C19F2B527CD904FF3445B47008B25" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityCommitmentFeeAmount" xlink:label="loc_us-gaap_LineOfCreditFacilityCommitmentFeeAmount_0A3B846ECD4F76BE7056445B47009474" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_B5E4347C575778AAF0F7445B47006101" xlink:to="loc_us-gaap_LineOfCreditFacilityCommitmentFeeAmount_0A3B846ECD4F76BE7056445B47009474" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentTerm" xlink:label="loc_us-gaap_DebtInstrumentTerm_68A01F31CECF0F2F8857445B4700B86A" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_B5E4347C575778AAF0F7445B47006101" xlink:to="loc_us-gaap_DebtInstrumentTerm_68A01F31CECF0F2F8857445B4700B86A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_04697867B5B6112EB994445B4700661F" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_B5E4347C575778AAF0F7445B47006101" xlink:to="loc_us-gaap_LongTermDebt_04697867B5B6112EB994445B4700661F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_ADF88648976E48FBDBFC445B4700648E" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_B5E4347C575778AAF0F7445B47006101" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_ADF88648976E48FBDBFC445B4700648E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasedAssetsGross" xlink:label="loc_us-gaap_CapitalLeasedAssetsGross_6AFB5BA625292391918F445B470105AA" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_B5E4347C575778AAF0F7445B47006101" xlink:to="loc_us-gaap_CapitalLeasedAssetsGross_6AFB5BA625292391918F445B470105AA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation" xlink:label="loc_us-gaap_CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation_0326C7D98A309DB3CF8F445B47018281" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_B5E4347C575778AAF0F7445B47006101" xlink:to="loc_us-gaap_CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation_0326C7D98A309DB3CF8F445B47018281" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/DebtRemainingPaymentsDueOnCapitalLeaseObligationsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_5DC42F2A8F5F635DEF85CE035ECB3DD0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent_78AEB52EE6B8FD8F3905CE035ECB39EF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_5DC42F2A8F5F635DEF85CE035ECB3DD0" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent_78AEB52EE6B8FD8F3905CE035ECB39EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_ADBA869D63D4D7F7E0EFCE035ECB3343" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_5DC42F2A8F5F635DEF85CE035ECB3DD0" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_ADBA869D63D4D7F7E0EFCE035ECB3343" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeaseObligations" xlink:label="loc_us-gaap_CapitalLeaseObligations_B849E851E4D35C9A64EBCE035ECB3636" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_5DC42F2A8F5F635DEF85CE035ECB3DD0" xlink:to="loc_us-gaap_CapitalLeaseObligations_B849E851E4D35C9A64EBCE035ECB3636" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeaseObligationsCurrent" xlink:label="loc_us-gaap_CapitalLeaseObligationsCurrent_531D5618D3D7FCC4A115CE035ECB5338" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_5DC42F2A8F5F635DEF85CE035ECB3DD0" xlink:to="loc_us-gaap_CapitalLeaseObligationsCurrent_531D5618D3D7FCC4A115CE035ECB5338" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeaseObligationsNoncurrent" xlink:label="loc_us-gaap_CapitalLeaseObligationsNoncurrent_758019AFC3BFA53EA7E0CE035ECB92A5" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_5DC42F2A8F5F635DEF85CE035ECB3DD0" xlink:to="loc_us-gaap_CapitalLeaseObligationsNoncurrent_758019AFC3BFA53EA7E0CE035ECB92A5" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/DebtTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_0AE275B94D0738E0166F33846630865C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFutureMinimumLeasePaymentsForCapitalLeasesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFutureMinimumLeasePaymentsForCapitalLeasesTableTextBlock_AD2CFB03880564344ACA3384663003C1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_0AE275B94D0738E0166F33846630865C" xlink:to="loc_us-gaap_ScheduleOfFutureMinimumLeasePaymentsForCapitalLeasesTableTextBlock_AD2CFB03880564344ACA3384663003C1" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/DiscontinuedOperations" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract" xlink:label="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_B382B51F0299557CA4E7F0FCE726DB78" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_C533275B00775AEEB53191F6099B2AC1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_B382B51F0299557CA4E7F0FCE726DB78" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_C533275B00775AEEB53191F6099B2AC1" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/DiscontinuedOperationsAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract" xlink:label="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_D625EA893BF712121133338466EC92D3" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7C06DEDA63081CCDA172338466ECD5C9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_D625EA893BF712121133338466EC92D3" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7C06DEDA63081CCDA172338466ECD5C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CounterpartyNameAxis" xlink:label="loc_us-gaap_CounterpartyNameAxis_DBAAA40653806BBD0191338466EC9C07" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7C06DEDA63081CCDA172338466ECD5C9" xlink:to="loc_us-gaap_CounterpartyNameAxis_DBAAA40653806BBD0191338466EC9C07" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RepurchaseAgreementCounterpartyNameDomain" xlink:label="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_15D2E846BD7735CBA645338466EC5D15" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CounterpartyNameAxis_DBAAA40653806BBD0191338466EC9C07" xlink:to="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_15D2E846BD7735CBA645338466EC5D15" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_RepublicMember" xlink:label="loc_band_RepublicMember_01213551BFAB91E59557338466ECFF43" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_15D2E846BD7735CBA645338466EC5D15" xlink:to="loc_band_RepublicMember_01213551BFAB91E59557338466ECFF43" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_32A02BC5CE995AB54ED1338466EC34FA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7C06DEDA63081CCDA172338466ECD5C9" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_32A02BC5CE995AB54ED1338466EC34FA" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_CommonStockConversionBasisRatio" xlink:label="loc_band_CommonStockConversionBasisRatio_EB96A51FF921CB960E02338466ECE398" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_32A02BC5CE995AB54ED1338466EC34FA" xlink:to="loc_band_CommonStockConversionBasisRatio_EB96A51FF921CB960E02338466ECE398" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsOfCapitalDistribution" xlink:label="loc_us-gaap_PaymentsOfCapitalDistribution_B0DC48EF0F27DF0218A7338466ED5D14" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_32A02BC5CE995AB54ED1338466EC34FA" xlink:to="loc_us-gaap_PaymentsOfCapitalDistribution_B0DC48EF0F27DF0218A7338466ED5D14" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteSpinoffTransaction" xlink:label="loc_us-gaap_StockholdersEquityNoteSpinoffTransaction_228E230D2D4089E84475338466ED5840" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_32A02BC5CE995AB54ED1338466EC34FA" xlink:to="loc_us-gaap_StockholdersEquityNoteSpinoffTransaction_228E230D2D4089E84475338466ED5840" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/DiscontinuedOperationsDistributionRecordedAtCarryingAmountDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract" xlink:label="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_7E17290C676CB2BF5E33BF44E8536A84" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_83203D5247F150813F1CBF44E853E972" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_7E17290C676CB2BF5E33BF44E8536A84" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_83203D5247F150813F1CBF44E853E972" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupClassificationAxis" xlink:label="loc_us-gaap_DisposalGroupClassificationAxis_D45E73D831A467AAB291BF44E85316FD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_83203D5247F150813F1CBF44E853E972" xlink:to="loc_us-gaap_DisposalGroupClassificationAxis_D45E73D831A467AAB291BF44E85316FD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupClassificationDomain" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_123486106B6413FAE76ABF44E85332B5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_D45E73D831A467AAB291BF44E85316FD" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_123486106B6413FAE76ABF44E85332B5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DiscontinuedOperationsDisposedOfByMeansOtherThanSaleSpinoffMember" xlink:label="loc_us-gaap_DiscontinuedOperationsDisposedOfByMeansOtherThanSaleSpinoffMember_5CF6F656C493EDF17CAFBF44E8531473" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisposalGroupClassificationDomain_123486106B6413FAE76ABF44E85332B5" xlink:to="loc_us-gaap_DiscontinuedOperationsDisposedOfByMeansOtherThanSaleSpinoffMember_5CF6F656C493EDF17CAFBF44E8531473" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_6AB237FF4077994FA39DBF44E85357E8" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_83203D5247F150813F1CBF44E853E972" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_6AB237FF4077994FA39DBF44E85357E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationAbstract" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationAbstract_8CC40585FEAD12348131BF44E854D005" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_6AB237FF4077994FA39DBF44E85357E8" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationAbstract_8CC40585FEAD12348131BF44E854D005" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_AFCA2950FD88EEE6A124BF44E85447AC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationAbstract_8CC40585FEAD12348131BF44E854D005" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_AFCA2950FD88EEE6A124BF44E85447AC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationInventoryCurrent" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationInventoryCurrent_02639C194D47D1CA26E8BF44E854FE44" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationAbstract_8CC40585FEAD12348131BF44E854D005" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationInventoryCurrent_02639C194D47D1CA26E8BF44E854FE44" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent_6D4E06D7DE0BB5F9B0F8BF44E8544A66" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationAbstract_8CC40585FEAD12348131BF44E854D005" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent_6D4E06D7DE0BB5F9B0F8BF44E8544A66" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_5A08BE3483E26FD917A6BF44E8543AD6" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationAbstract_8CC40585FEAD12348131BF44E854D005" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_5A08BE3483E26FD917A6BF44E8543AD6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent_4BBBB086945E9A7CFFDFBF44E8541FB1" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationAbstract_8CC40585FEAD12348131BF44E854D005" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent_4BBBB086945E9A7CFFDFBF44E8541FB1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets_F58508209C50F6627292BF44E85442E9" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationAbstract_8CC40585FEAD12348131BF44E854D005" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets_F58508209C50F6627292BF44E85442E9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_F458032A2256A726F596BF44E85429CE" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationAbstract_8CC40585FEAD12348131BF44E854D005" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_F458032A2256A726F596BF44E85429CE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationAbstract" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationAbstract_3370A45889D850CFD70CBF44E8545AD4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_6AB237FF4077994FA39DBF44E85357E8" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationAbstract_3370A45889D850CFD70CBF44E8545AD4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent_14481CA6651455570B54BF44E854D063" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationAbstract_3370A45889D850CFD70CBF44E8545AD4" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent_14481CA6651455570B54BF44E854D063" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent_00DA3B9430D71D7164ABBF44E8546F69" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationAbstract_3370A45889D850CFD70CBF44E8545AD4" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent_00DA3B9430D71D7164ABBF44E8546F69" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationDeferredRevenueCurrent" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationDeferredRevenueCurrent_0A43B6624BDD3166FE6ABF44E854D347" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationAbstract_3370A45889D850CFD70CBF44E8545AD4" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationDeferredRevenueCurrent_0A43B6624BDD3166FE6ABF44E854D347" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_76DA9009DB7388883D1CBF44E8544E7D" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationAbstract_3370A45889D850CFD70CBF44E8545AD4" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_76DA9009DB7388883D1CBF44E8544E7D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities_356B90AFD5EC6635A243BF44E8540A2F" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationAbstract_3370A45889D850CFD70CBF44E8545AD4" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities_356B90AFD5EC6635A243BF44E8540A2F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_01609990AA9EE244D8CABF44E854A3CB" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationAbstract_3370A45889D850CFD70CBF44E8545AD4" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_01609990AA9EE244D8CABF44E854A3CB" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_DisposalGroupIncludingDiscontinuedOperationNetAssetLiability" xlink:label="loc_band_DisposalGroupIncludingDiscontinuedOperationNetAssetLiability_3DABEBF225AA32BBE7B0BF44E8544FBA" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationAbstract_3370A45889D850CFD70CBF44E8545AD4" xlink:to="loc_band_DisposalGroupIncludingDiscontinuedOperationNetAssetLiability_3DABEBF225AA32BBE7B0BF44E8544FBA" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/DiscontinuedOperationsOperatingResultsOfDiscontinuedOperationsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract" xlink:label="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_E4DAF162EF6FBC4AD2A9424BE4B4F2C6" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_8ABCAD2F556DD5720C41424BE4B48676" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_E4DAF162EF6FBC4AD2A9424BE4B4F2C6" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_8ABCAD2F556DD5720C41424BE4B48676" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupClassificationAxis" xlink:label="loc_us-gaap_DisposalGroupClassificationAxis_55A5173E1AD199DE2C7C424BE4B4AE60" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_8ABCAD2F556DD5720C41424BE4B48676" xlink:to="loc_us-gaap_DisposalGroupClassificationAxis_55A5173E1AD199DE2C7C424BE4B4AE60" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupClassificationDomain" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_7004B43916CDAEB909D2424BE4B4C6E8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_55A5173E1AD199DE2C7C424BE4B4AE60" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_7004B43916CDAEB909D2424BE4B4C6E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DiscontinuedOperationsDisposedOfByMeansOtherThanSaleSpinoffMember" xlink:label="loc_us-gaap_DiscontinuedOperationsDisposedOfByMeansOtherThanSaleSpinoffMember_5A592862BB603354E71A424BE4B4A114" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisposalGroupClassificationDomain_7004B43916CDAEB909D2424BE4B4C6E8" xlink:to="loc_us-gaap_DiscontinuedOperationsDisposedOfByMeansOtherThanSaleSpinoffMember_5A592862BB603354E71A424BE4B4A114" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_C424F1E5E55B01F3EEFD424BE4B45986" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_8ABCAD2F556DD5720C41424BE4B48676" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_C424F1E5E55B01F3EEFD424BE4B45986" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_DBB18E7C5B14076FA4CD424BE4B4F067" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_C424F1E5E55B01F3EEFD424BE4B45986" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_DBB18E7C5B14076FA4CD424BE4B4F067" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_93F78DC1C525CE26F145424BE4B43D93" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_C424F1E5E55B01F3EEFD424BE4B45986" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_93F78DC1C525CE26F145424BE4B43D93" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_E0BAA8CDA54321E1CAC1424BE4B4884B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_C424F1E5E55B01F3EEFD424BE4B45986" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_E0BAA8CDA54321E1CAC1424BE4B4884B" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_DisposalGroupIncludingDiscontinuedOperationDepreciationandInterest" xlink:label="loc_band_DisposalGroupIncludingDiscontinuedOperationDepreciationandInterest_F31AB91B255A8A0ED432424BE4B4C825" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_C424F1E5E55B01F3EEFD424BE4B45986" xlink:to="loc_band_DisposalGroupIncludingDiscontinuedOperationDepreciationandInterest_F31AB91B255A8A0ED432424BE4B4C825" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation" xlink:label="loc_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_EA29ADA31353CBBD7A6C424BE4B42364" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_C424F1E5E55B01F3EEFD424BE4B45986" xlink:to="loc_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_EA29ADA31353CBBD7A6C424BE4B42364" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_0C66D93A78C876C34F63424BE4B4CD97" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_C424F1E5E55B01F3EEFD424BE4B45986" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_0C66D93A78C876C34F63424BE4B4CD97" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/DiscontinuedOperationsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract" xlink:label="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_AA0751BBC9386E18B895331427B61585" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock" xlink:label="loc_us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_E22B5D4823D564D81897331427B6C2A0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_AA0751BBC9386E18B895331427B61585" xlink:to="loc_us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_E22B5D4823D564D81897331427B6C2A0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock" xlink:label="loc_us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_EE2201822867428751433321B8F3782D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_AA0751BBC9386E18B895331427B61585" xlink:to="loc_us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_EE2201822867428751433321B8F3782D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/DocumentAndEntityInformationDocumentAndEntityInformation" xlink:type="extended">
    <link:loc xlink:href="band-20171231.xsd#band_DocumentandEntityInformationAbstract" xlink:label="loc_band_DocumentandEntityInformationAbstract_B9588746E6B89B1ACEEC2DC036568397" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_85A66A67D3565208F1912DC036564F34" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_DocumentandEntityInformationAbstract_B9588746E6B89B1ACEEC2DC036568397" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_85A66A67D3565208F1912DC036564F34" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_370DE88A460A0456A11A2DC036564A83" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_85A66A67D3565208F1912DC036564F34" xlink:to="loc_us-gaap_StatementClassOfStockAxis_370DE88A460A0456A11A2DC036564A83" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_ADFAE3AFBBEE2651EEDC2DC036565FB9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_370DE88A460A0456A11A2DC036564A83" xlink:to="loc_us-gaap_ClassOfStockDomain_ADFAE3AFBBEE2651EEDC2DC036565FB9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_763E33C914ACE2A723C52DC0365643A3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_ADFAE3AFBBEE2651EEDC2DC036565FB9" xlink:to="loc_us-gaap_CommonClassAMember_763E33C914ACE2A723C52DC0365643A3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_FE683ECDDDA60C64FC232DC036568913" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_ADFAE3AFBBEE2651EEDC2DC036565FB9" xlink:to="loc_us-gaap_CommonClassBMember_FE683ECDDDA60C64FC232DC036568913" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_us-gaap_ClassOfStockLineItems_0DB8E094CCF431C646E62DC036560672" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_85A66A67D3565208F1912DC036564F34" xlink:to="loc_us-gaap_ClassOfStockLineItems_0DB8E094CCF431C646E62DC036560672" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_A8FAC84983194E2D6D452DC0365622AC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_0DB8E094CCF431C646E62DC036560672" xlink:to="loc_dei_EntityRegistrantName_A8FAC84983194E2D6D452DC0365622AC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_C7FA38BA16BE95B478352DC036563BF3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_0DB8E094CCF431C646E62DC036560672" xlink:to="loc_dei_EntityCentralIndexKey_C7FA38BA16BE95B478352DC036563BF3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate_9FDE55627016095459CF2DC03657EAA8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_0DB8E094CCF431C646E62DC036560672" xlink:to="loc_dei_CurrentFiscalYearEndDate_9FDE55627016095459CF2DC03657EAA8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory_AC3CB66366E75A35D9BC2DC036574811" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_0DB8E094CCF431C646E62DC036560672" xlink:to="loc_dei_EntityFilerCategory_AC3CB66366E75A35D9BC2DC036574811" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_889264044A8CF8D9771E2DC0365747AC" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_0DB8E094CCF431C646E62DC036560672" xlink:to="loc_dei_DocumentType_889264044A8CF8D9771E2DC0365747AC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_8433614D63FE5F2995012DC036575386" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_0DB8E094CCF431C646E62DC036560672" xlink:to="loc_dei_DocumentPeriodEndDate_8433614D63FE5F2995012DC036575386" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus_0948381706C8FA91C5AF2DC03657A2A9" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_0DB8E094CCF431C646E62DC036560672" xlink:to="loc_dei_DocumentFiscalYearFocus_0948381706C8FA91C5AF2DC03657A2A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus_B58FC1D0272B638902F82DC03657A481" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_0DB8E094CCF431C646E62DC036560672" xlink:to="loc_dei_DocumentFiscalPeriodFocus_B58FC1D0272B638902F82DC03657A481" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_A7572D3C35040EFFE6E72DC036571F93" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_0DB8E094CCF431C646E62DC036560672" xlink:to="loc_dei_AmendmentFlag_A7572D3C35040EFFE6E72DC036571F93" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_DAD85EE2A63BB2B8B4E12DC036570A3F" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_0DB8E094CCF431C646E62DC036560672" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_DAD85EE2A63BB2B8B4E12DC036570A3F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer_82E56FBF3EE15938278A2DC56D9D169E" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_0DB8E094CCF431C646E62DC036560672" xlink:to="loc_dei_EntityWellKnownSeasonedIssuer_82E56FBF3EE15938278A2DC56D9D169E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_dei_EntityVoluntaryFilers_4B6DA7F3E1EB57F312802DC5AA69E6EF" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_0DB8E094CCF431C646E62DC036560672" xlink:to="loc_dei_EntityVoluntaryFilers_4B6DA7F3E1EB57F312802DC5AA69E6EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus_9293E2812AE2B05785042DC5E9AE9AB0" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_0DB8E094CCF431C646E62DC036560672" xlink:to="loc_dei_EntityCurrentReportingStatus_9293E2812AE2B05785042DC5E9AE9AB0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityPublicFloat" xlink:label="loc_dei_EntityPublicFloat_4176AE38835C12225E772DC2B69FB2B1" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_0DB8E094CCF431C646E62DC036560672" xlink:to="loc_dei_EntityPublicFloat_4176AE38835C12225E772DC2B69FB2B1" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/EmployeeBenefitPlan" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_01E5EB08B2315AED9CEDD86646447000" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_EE02ED19D3D353F0A3D3CBCD330E493D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_01E5EB08B2315AED9CEDD86646447000" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_EE02ED19D3D353F0A3D3CBCD330E493D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/EmployeeBenefitPlanDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_C799C91332F11A2CA78533C8D6479DE2" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_2E8DAF1039493D3D0C6733C8D6471299" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_C799C91332F11A2CA78533C8D6479DE2" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_2E8DAF1039493D3D0C6733C8D6471299" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/FairValueOfFinancialInstruments" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_ADEE464F39035C56A0F136A1FFE2DDE4" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_F5C072D1162757E2A5C18F01E508DA83" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_ADEE464F39035C56A0F136A1FFE2DDE4" xlink:to="loc_us-gaap_FairValueDisclosuresTextBlock_F5C072D1162757E2A5C18F01E508DA83" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/FairValueOfFinancialInstrumentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_A14A3C1A55E809EECB04445B472F5DC8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_83EEBB9DAF9F16EDC97E445B472F6386" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_A14A3C1A55E809EECB04445B472F5DC8" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_83EEBB9DAF9F16EDC97E445B472F6386" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_6C70D8E9C831175421D3445B472F4F1B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_83EEBB9DAF9F16EDC97E445B472F6386" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_6C70D8E9C831175421D3445B472F4F1B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_9C03A89376FEE5AD0EF3445B472F9510" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_6C70D8E9C831175421D3445B472F4F1B" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_9C03A89376FEE5AD0EF3445B472F9510" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_D121F8FC161DED4FD768445B472F0432" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_9C03A89376FEE5AD0EF3445B472F9510" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_D121F8FC161DED4FD768445B472F0432" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_3C6F50AEDC5AB8447F47445B472F9304" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_83EEBB9DAF9F16EDC97E445B472F6386" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_3C6F50AEDC5AB8447F47445B472F9304" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_72D57B7768FFB8ADD380445B472F590B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_3C6F50AEDC5AB8447F47445B472F9304" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_72D57B7768FFB8ADD380445B472F590B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_E4BAE4A24A81B37BE072445B472F8D34" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_72D57B7768FFB8ADD380445B472F590B" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_E4BAE4A24A81B37BE072445B472F8D34" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_18CEACC54DE8A7AADB9E445B472FB942" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_72D57B7768FFB8ADD380445B472F590B" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_18CEACC54DE8A7AADB9E445B472FB942" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_E070ED7DAD8811A978C4445B472FC86F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_72D57B7768FFB8ADD380445B472F590B" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_E070ED7DAD8811A978C4445B472FC86F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9B62D8021E390A9A84D1445B472F55CD" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_83EEBB9DAF9F16EDC97E445B472F6386" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9B62D8021E390A9A84D1445B472F55CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAssetsFairValueDisclosure" xlink:label="loc_us-gaap_OtherAssetsFairValueDisclosure_8BAD2ABA965D007CBC28445B472F97C8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9B62D8021E390A9A84D1445B472F55CD" xlink:to="loc_us-gaap_OtherAssetsFairValueDisclosure_8BAD2ABA965D007CBC28445B472F97C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_A2503950DD55DAF396C7445B472FE0D6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9B62D8021E390A9A84D1445B472F55CD" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_A2503950DD55DAF396C7445B472FE0D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsFairValueDisclosure" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_905A79A35D28F0A8276E445B472FDA8B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9B62D8021E390A9A84D1445B472F55CD" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_905A79A35D28F0A8276E445B472FDA8B" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_ShareholderAgreementTermofNotice" xlink:label="loc_band_ShareholderAgreementTermofNotice_A1187265452FDA227A2E445B472FD972" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9B62D8021E390A9A84D1445B472F55CD" xlink:to="loc_band_ShareholderAgreementTermofNotice_A1187265452FDA227A2E445B472FD972" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_ShareholderAgreementQualifiedPublicOfferingThreshold" xlink:label="loc_band_ShareholderAgreementQualifiedPublicOfferingThreshold_BFCC9C43160A14A8B2BD445B473065E7" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9B62D8021E390A9A84D1445B472F55CD" xlink:to="loc_band_ShareholderAgreementQualifiedPublicOfferingThreshold_BFCC9C43160A14A8B2BD445B473065E7" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/FairValueOfFinancialInstrumentsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_C62909A00ED35DF89B70EFEE44777661" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_1E72E8C1485E54EDB61F289E6642F27C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_C62909A00ED35DF89B70EFEE44777661" xlink:to="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_1E72E8C1485E54EDB61F289E6642F27C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/FinancialStatementComponents" xlink:type="extended">
    <link:loc xlink:href="band-20171231.xsd#band_FinancialStatementComponentsAbstract" xlink:label="loc_band_FinancialStatementComponentsAbstract_869C88D0C16F55998BFF00E5F5DAEC64" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdditionalFinancialInformationDisclosureTextBlock" xlink:label="loc_us-gaap_AdditionalFinancialInformationDisclosureTextBlock_0AFCBB0B435C58BEA5897A21386833F9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_FinancialStatementComponentsAbstract_869C88D0C16F55998BFF00E5F5DAEC64" xlink:to="loc_us-gaap_AdditionalFinancialInformationDisclosureTextBlock_0AFCBB0B435C58BEA5897A21386833F9" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/FinancialStatementComponentsAccountsReceivableNetOfAllowanceForDoubtfulAccountsDetails" xlink:type="extended">
    <link:loc xlink:href="band-20171231.xsd#band_FinancialStatementComponentsAbstract" xlink:label="loc_band_FinancialStatementComponentsAbstract_BF50A163202E5C2092C89B33146A885C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsReceivableGrossCurrent" xlink:label="loc_us-gaap_AccountsReceivableGrossCurrent_84336BC9D66B5C04A6EF42D95E4DFC43" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_FinancialStatementComponentsAbstract_BF50A163202E5C2092C89B33146A885C" xlink:to="loc_us-gaap_AccountsReceivableGrossCurrent_84336BC9D66B5C04A6EF42D95E4DFC43" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnbilledReceivablesCurrent" xlink:label="loc_us-gaap_UnbilledReceivablesCurrent_2571DD3FFEC25C7EB37C076131BFB5BB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_FinancialStatementComponentsAbstract_BF50A163202E5C2092C89B33146A885C" xlink:to="loc_us-gaap_UnbilledReceivablesCurrent_2571DD3FFEC25C7EB37C076131BFB5BB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_70C542F6A61352C29E0753E632D181D6" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_FinancialStatementComponentsAbstract_BF50A163202E5C2092C89B33146A885C" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_70C542F6A61352C29E0753E632D181D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherReceivablesNetCurrent" xlink:label="loc_us-gaap_OtherReceivablesNetCurrent_A4773B66B2FF577583275C630B8FC863" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_FinancialStatementComponentsAbstract_BF50A163202E5C2092C89B33146A885C" xlink:to="loc_us-gaap_OtherReceivablesNetCurrent_A4773B66B2FF577583275C630B8FC863" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_5B23EF0AC2895E559B6830B030B83D4F" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_FinancialStatementComponentsAbstract_BF50A163202E5C2092C89B33146A885C" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_5B23EF0AC2895E559B6830B030B83D4F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/FinancialStatementComponentsAccruedExpensesAndOtherCurrentLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:href="band-20171231.xsd#band_FinancialStatementComponentsAbstract" xlink:label="loc_band_FinancialStatementComponentsAbstract_48A3E0AC4A195DEB8249445B47221B34" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedLiabilitiesCurrentAndNoncurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_2988813D5DC6098F65CB445B4722C919" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_FinancialStatementComponentsAbstract_48A3E0AC4A195DEB8249445B47221B34" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_2988813D5DC6098F65CB445B4722C919" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_46612A7562BF1EB2A833445B4722072E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_FinancialStatementComponentsAbstract_48A3E0AC4A195DEB8249445B47221B34" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_46612A7562BF1EB2A833445B4722072E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SalesAndExciseTaxPayableCurrent" xlink:label="loc_us-gaap_SalesAndExciseTaxPayableCurrent_6F78A246F2FCBBB043B0445B4722B783" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_FinancialStatementComponentsAbstract_48A3E0AC4A195DEB8249445B47221B34" xlink:to="loc_us-gaap_SalesAndExciseTaxPayableCurrent_6F78A246F2FCBBB043B0445B4722B783" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_F9636F3347F706FA7AC5445B47221E4F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_FinancialStatementComponentsAbstract_48A3E0AC4A195DEB8249445B47221B34" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_F9636F3347F706FA7AC5445B47221E4F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedLiabilitiesAndOtherLiabilities" xlink:label="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_B2E1188D035B3568FD4A445B4722327A" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_FinancialStatementComponentsAbstract_48A3E0AC4A195DEB8249445B47221B34" xlink:to="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_B2E1188D035B3568FD4A445B4722327A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/FinancialStatementComponentsAllowanceForDoubtfulAccountsDetails" xlink:type="extended">
    <link:loc xlink:href="band-20171231.xsd#band_FinancialStatementComponentsAbstract" xlink:label="loc_band_FinancialStatementComponentsAbstract_E3F5D833DC2D30C035ECCE035F19A374" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_F4B7338626EF311EB438CE035F198157" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_FinancialStatementComponentsAbstract_E3F5D833DC2D30C035ECCE035F19A374" xlink:to="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_F4B7338626EF311EB438CE035F198157" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_037D3A75BC00F2C19772CE035F199BFC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_F4B7338626EF311EB438CE035F198157" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_037D3A75BC00F2C19772CE035F199BFC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReceivableTypeDomain" xlink:label="loc_us-gaap_ReceivableTypeDomain_3E1526E87C463C36084FCE035F199FA1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_037D3A75BC00F2C19772CE035F199BFC" xlink:to="loc_us-gaap_ReceivableTypeDomain_3E1526E87C463C36084FCE035F199FA1" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_AccountsReceivableExcludingCarrierAccessBillingCABMember" xlink:label="loc_band_AccountsReceivableExcludingCarrierAccessBillingCABMember_D0E10924AC531062FE3ECE035F19F922" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivableTypeDomain_3E1526E87C463C36084FCE035F199FA1" xlink:to="loc_band_AccountsReceivableExcludingCarrierAccessBillingCABMember_D0E10924AC531062FE3ECE035F19F922" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_CarrierAccessBillingMember" xlink:label="loc_band_CarrierAccessBillingMember_CCFFE8878887BDEDCE48CE035F19DD02" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivableTypeDomain_3E1526E87C463C36084FCE035F199FA1" xlink:to="loc_band_CarrierAccessBillingMember_CCFFE8878887BDEDCE48CE035F19DD02" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProductOrServiceAxis" xlink:label="loc_us-gaap_ProductOrServiceAxis_E167382BC77CF537E502CE035F191D7E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_F4B7338626EF311EB438CE035F198157" xlink:to="loc_us-gaap_ProductOrServiceAxis_E167382BC77CF537E502CE035F191D7E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProductsAndServicesDomain" xlink:label="loc_us-gaap_ProductsAndServicesDomain_72851D1A78C5771AC727CE035F19B0DD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ProductOrServiceAxis_E167382BC77CF537E502CE035F191D7E" xlink:to="loc_us-gaap_ProductsAndServicesDomain_72851D1A78C5771AC727CE035F19B0DD" xlink:type="arc" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ProductsAndServicesDomain_72851D1A78C5771AC727CE035F19B0DD" xlink:to="loc_band_CarrierAccessBillingMember_CCFFE8878887BDEDCE48CE035F19DD02" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:label="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_158F814C6E551A67C4D4CE035F193232" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_F4B7338626EF311EB438CE035F198157" xlink:to="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_158F814C6E551A67C4D4CE035F193232" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_6E0C0F43E63650B3CEF9CE035F19C2B5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_158F814C6E551A67C4D4CE035F193232" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_6E0C0F43E63650B3CEF9CE035F19C2B5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivable" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_588C6F3EB6CC828767CDCE035F192003" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_6E0C0F43E63650B3CEF9CE035F19C2B5" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_588C6F3EB6CC828767CDCE035F192003" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_895A77CA2EC9B9533B11CE035F1942FD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_6E0C0F43E63650B3CEF9CE035F19C2B5" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_895A77CA2EC9B9533B11CE035F1942FD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs_521D697BEB365FB977B1CE035F190A20" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_6E0C0F43E63650B3CEF9CE035F19C2B5" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs_521D697BEB365FB977B1CE035F190A20" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivable" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_983B4EBF06F748523B8ACE035F19C9B9" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_6E0C0F43E63650B3CEF9CE035F19C2B5" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_983B4EBF06F748523B8ACE035F19C9B9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GrossTransactionVolume" xlink:label="loc_us-gaap_GrossTransactionVolume_20E736E7F2C0753470CACE035F19A704" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_158F814C6E551A67C4D4CE035F193232" xlink:to="loc_us-gaap_GrossTransactionVolume_20E736E7F2C0753470CACE035F19A704" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_B28081BEB96F1663379CCE035F19EC3B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_158F814C6E551A67C4D4CE035F193232" xlink:to="loc_us-gaap_Revenues_B28081BEB96F1663379CCE035F19EC3B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/FinancialStatementComponentsTables" xlink:type="extended">
    <link:loc xlink:href="band-20171231.xsd#band_FinancialStatementComponentsAbstract" xlink:label="loc_band_FinancialStatementComponentsAbstract_3153D5180433540FB9458CC11137E0BF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_77C92EB86B005067834A56316022B660" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_FinancialStatementComponentsAbstract_3153D5180433540FB9458CC11137E0BF" xlink:to="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_77C92EB86B005067834A56316022B660" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock" xlink:label="loc_us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock_C277A75D2B4E5DDBB27A8BEF5D24A0C8" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_FinancialStatementComponentsAbstract_3153D5180433540FB9458CC11137E0BF" xlink:to="loc_us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock_C277A75D2B4E5DDBB27A8BEF5D24A0C8" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/IncomeTaxes" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_1EEAE049F9AA5D8FABFB7AC2ADD55C83" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="loc_us-gaap_IncomeTaxDisclosureTextBlock_5D76757AF8655AB2A072DD37F577BDC3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_1EEAE049F9AA5D8FABFB7AC2ADD55C83" xlink:to="loc_us-gaap_IncomeTaxDisclosureTextBlock_5D76757AF8655AB2A072DD37F577BDC3" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/IncomeTaxesAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_1084190CBFE99AC5C0DCCE035D8ED59B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TaxCreditCarryforwardAmount" xlink:label="loc_us-gaap_TaxCreditCarryforwardAmount_3A172A1A2C39F57F825BCE035D8EA09B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_1084190CBFE99AC5C0DCCE035D8ED59B" xlink:to="loc_us-gaap_TaxCreditCarryforwardAmount_3A172A1A2C39F57F825BCE035D8EA09B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLossCarryforwards" xlink:label="loc_us-gaap_OperatingLossCarryforwards_F9D25ED7A4F937257AE5CE035D8E5F61" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_1084190CBFE99AC5C0DCCE035D8ED59B" xlink:to="loc_us-gaap_OperatingLossCarryforwards_F9D25ED7A4F937257AE5CE035D8E5F61" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_58DCE4F3642AAE6D6264CE035D8E837D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_1084190CBFE99AC5C0DCCE035D8ED59B" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_58DCE4F3642AAE6D6264CE035D8E837D" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense" xlink:label="loc_band_TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense_5700925E493581B4DE4DCE035D8E33B9" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_1084190CBFE99AC5C0DCCE035D8ED59B" xlink:to="loc_band_TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense_5700925E493581B4DE4DCE035D8E33B9" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/IncomeTaxesComponentsOfProvisionBenefitForIncomeTaxesFromContinuingOperationsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_1B18EBC792AA48A2D472CE035DC1395F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_9257D69D0DEB5803CD4CCE035DC1A510" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_1B18EBC792AA48A2D472CE035DC1395F" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_9257D69D0DEB5803CD4CCE035DC1A510" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_BB1C25B1EC7E4445526CCE035DC11F67" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_9257D69D0DEB5803CD4CCE035DC1A510" xlink:to="loc_us-gaap_CurrentFederalTaxExpenseBenefit_BB1C25B1EC7E4445526CCE035DC11F67" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_99BAB70480F01C5A8916CE035DC1B98E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_9257D69D0DEB5803CD4CCE035DC1A510" xlink:to="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_99BAB70480F01C5A8916CE035DC1B98E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_A24985776BB755566A48CE035DC1369C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_9257D69D0DEB5803CD4CCE035DC1A510" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_A24985776BB755566A48CE035DC1369C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_8EFDBB0837AEC5EACFBFCE035DC18FBB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_1B18EBC792AA48A2D472CE035DC1395F" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_8EFDBB0837AEC5EACFBFCE035DC18FBB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_6D63DD95E879630DD011CE035DC149BF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_8EFDBB0837AEC5EACFBFCE035DC18FBB" xlink:to="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_6D63DD95E879630DD011CE035DC149BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_DD967F184DEED3F757CACE035DC17A20" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_8EFDBB0837AEC5EACFBFCE035DC18FBB" xlink:to="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_DD967F184DEED3F757CACE035DC17A20" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_F0D32706569F3F3BA245CE035DC1162A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_8EFDBB0837AEC5EACFBFCE035DC18FBB" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_F0D32706569F3F3BA245CE035DC1162A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_BBED8C8B205C58F1C0C2CE035DC150E7" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_1B18EBC792AA48A2D472CE035DC1395F" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_BBED8C8B205C58F1C0C2CE035DC150E7" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_892EC6C8D5159EA6EA4B43F837106EDD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_90D4FE23C7FD415B674B440CFCB2D42F" xlink:type="locator" />
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_892EC6C8D5159EA6EA4B43F837106EDD" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_90D4FE23C7FD415B674B440CFCB2D42F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_3E14492EDCC9BEE33BD643F872051325" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_90D4FE23C7FD415B674B440CFCB2D42F" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_3E14492EDCC9BEE33BD643F872051325" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_4E699C066811E9B4F9E643F920699963" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_90D4FE23C7FD415B674B440CFCB2D42F" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_4E699C066811E9B4F9E643F920699963" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense_2358DA059C2204939FAC43F983B28DB0" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_90D4FE23C7FD415B674B440CFCB2D42F" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense_2358DA059C2204939FAC43F983B28DB0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch_F91E1EA9E18D19BAE40B43FBBA572BBC" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_90D4FE23C7FD415B674B440CFCB2D42F" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch_F91E1EA9E18D19BAE40B43FBBA572BBC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost_2A743370A05F5122A9C343FF9AE17DA1" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_90D4FE23C7FD415B674B440CFCB2D42F" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost_2A743370A05F5122A9C343FF9AE17DA1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_6803A04274BD121A595C43FC505E3EBC" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_90D4FE23C7FD415B674B440CFCB2D42F" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_6803A04274BD121A595C43FC505E3EBC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_857E7A878D9E88F8FB77440A40323728" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_90D4FE23C7FD415B674B440CFCB2D42F" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_857E7A878D9E88F8FB77440A40323728" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_02D93BA3C46226027E2A43FCBD0F88AE" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_90D4FE23C7FD415B674B440CFCB2D42F" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_02D93BA3C46226027E2A43FCBD0F88AE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_82E671715C5057B0675A4403212B435C" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_90D4FE23C7FD415B674B440CFCB2D42F" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_82E671715C5057B0675A4403212B435C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/IncomeTaxesSignificantComponentsOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_41CA449420955FA61E13AE913D9885FC" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsNetOfValuationAllowanceAbstract" xlink:label="loc_us-gaap_DeferredTaxAssetsNetOfValuationAllowanceAbstract_815AAF52B72639A3EB48AE913D98AC5E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_41CA449420955FA61E13AE913D9885FC" xlink:to="loc_us-gaap_DeferredTaxAssetsNetOfValuationAllowanceAbstract_815AAF52B72639A3EB48AE913D98AC5E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_D5E408E8C59645709603AE913D988C0B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetOfValuationAllowanceAbstract_815AAF52B72639A3EB48AE913D98AC5E" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_D5E408E8C59645709603AE913D988C0B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_874F670671AB89C4045DAE913D99DE2B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetOfValuationAllowanceAbstract_815AAF52B72639A3EB48AE913D98AC5E" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_874F670671AB89C4045DAE913D99DE2B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsDeferredIncome" xlink:label="loc_us-gaap_DeferredTaxAssetsDeferredIncome_3AA5E49D36072625AA05AE913D99F205" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetOfValuationAllowanceAbstract_815AAF52B72639A3EB48AE913D98AC5E" xlink:to="loc_us-gaap_DeferredTaxAssetsDeferredIncome_3AA5E49D36072625AA05AE913D99F205" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets" xlink:label="loc_us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets_9A79F8964FD535CAE41FAEA7D08E76CF" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetOfValuationAllowanceAbstract_815AAF52B72639A3EB48AE913D98AC5E" xlink:to="loc_us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets_9A79F8964FD535CAE41FAEA7D08E76CF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_7BED426E157806F610A1AE913D998903" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetOfValuationAllowanceAbstract_815AAF52B72639A3EB48AE913D98AC5E" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_7BED426E157806F610A1AE913D998903" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwards" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwards_966DD6B238CE0C125678AE913D997C38" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetOfValuationAllowanceAbstract_815AAF52B72639A3EB48AE913D98AC5E" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwards_966DD6B238CE0C125678AE913D997C38" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_3640B028F802F75A52F8AE913D99EB41" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetOfValuationAllowanceAbstract_815AAF52B72639A3EB48AE913D98AC5E" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_3640B028F802F75A52F8AE913D99EB41" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOther" xlink:label="loc_us-gaap_DeferredTaxAssetsOther_861E89673A8F41358A8EAE913D993630" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetOfValuationAllowanceAbstract_815AAF52B72639A3EB48AE913D98AC5E" xlink:to="loc_us-gaap_DeferredTaxAssetsOther_861E89673A8F41358A8EAE913D993630" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_67989DE71ADAE8165C9CAE913D9980D5" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetOfValuationAllowanceAbstract_815AAF52B72639A3EB48AE913D98AC5E" xlink:to="loc_us-gaap_DeferredTaxAssetsGross_67989DE71ADAE8165C9CAE913D9980D5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_F1C704D1A7BD9AB756F1AE913D99F822" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetOfValuationAllowanceAbstract_815AAF52B72639A3EB48AE913D98AC5E" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_F1C704D1A7BD9AB756F1AE913D99F822" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsNet" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_3C4A463E6E710000A6E5AE913D99F1BB" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetOfValuationAllowanceAbstract_815AAF52B72639A3EB48AE913D98AC5E" xlink:to="loc_us-gaap_DeferredTaxAssetsNet_3C4A463E6E710000A6E5AE913D99F1BB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesAbstract" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesAbstract_0A2830F0CD8BD54EF922AE913D99156A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_41CA449420955FA61E13AE913D9885FC" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesAbstract_0A2830F0CD8BD54EF922AE913D99156A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_405D87E035FF94F066EEAE913D995CFB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_0A2830F0CD8BD54EF922AE913D99156A" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_405D87E035FF94F066EEAE913D995CFB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill_7F0549DFD2CA2773CE50AE913D99F001" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_0A2830F0CD8BD54EF922AE913D99156A" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill_7F0549DFD2CA2773CE50AE913D99F001" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesOther" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesOther_F7BB7FA960D3B5B401C2AE913D99DA76" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_0A2830F0CD8BD54EF922AE913D99156A" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesOther_F7BB7FA960D3B5B401C2AE913D99DA76" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilities" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_1FD4E569DDC0083E4E2DAE913D997673" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_0A2830F0CD8BD54EF922AE913D99156A" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilities_1FD4E569DDC0083E4E2DAE913D997673" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_665E19AE129E2C81C111AE913D99F74F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_41CA449420955FA61E13AE913D9885FC" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_665E19AE129E2C81C111AE913D99F74F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/IncomeTaxesSummaryOfUnrecognizedTaxBenefitsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_DB506E6E6F14BFB2282848BAA8C68F03" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward" xlink:label="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_35834BE9DA182E58D11848BAA8C9545F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_DB506E6E6F14BFB2282848BAA8C68F03" xlink:to="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_35834BE9DA182E58D11848BAA8C9545F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_7D5D3028582BBE0E1A8C48BAA8CA4E69" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_35834BE9DA182E58D11848BAA8C9545F" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_7D5D3028582BBE0E1A8C48BAA8CA4E69" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_372FC7DB2641C1E75CE348BAA8CA1A9F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_35834BE9DA182E58D11848BAA8C9545F" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_372FC7DB2641C1E75CE348BAA8CA1A9F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_3A639F619E2D0463000F48BAA8CA97D3" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_35834BE9DA182E58D11848BAA8C9545F" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_3A639F619E2D0463000F48BAA8CA97D3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions_5BBA1F679D692663572A48BAA8CA9F90" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_35834BE9DA182E58D11848BAA8C9545F" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions_5BBA1F679D692663572A48BAA8CA9F90" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromSettlementsWithTaxingAuthorities" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromSettlementsWithTaxingAuthorities_35F73BE959E07045AF5648BAA8CA7B88" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_35834BE9DA182E58D11848BAA8C9545F" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromSettlementsWithTaxingAuthorities_35F73BE959E07045AF5648BAA8CA7B88" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations_622F794885A5FA59F43648BAA8CAE4EB" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_35834BE9DA182E58D11848BAA8C9545F" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations_622F794885A5FA59F43648BAA8CAE4EB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_18E13AB8AE1C8B4EC88048BAA8CAB3A5" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_35834BE9DA182E58D11848BAA8C9545F" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_18E13AB8AE1C8B4EC88048BAA8CAB3A5" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/IncomeTaxesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_A4D74C0C398E4505EF9943E7D5722E77" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_F253251FD00A938A968143E83C93726F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_A4D74C0C398E4505EF9943E7D5722E77" xlink:to="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_F253251FD00A938A968143E83C93726F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_2C4E5957A26D7A9BB5BC43E9B3C89920" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_A4D74C0C398E4505EF9943E7D5722E77" xlink:to="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_2C4E5957A26D7A9BB5BC43E9B3C89920" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_74B036BEE8A0920CCC7543EA2AC74156" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_A4D74C0C398E4505EF9943E7D5722E77" xlink:to="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_74B036BEE8A0920CCC7543EA2AC74156" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SummaryOfIncomeTaxContingenciesTextBlock" xlink:label="loc_us-gaap_SummaryOfIncomeTaxContingenciesTextBlock_015B63095CAA2EC25813443F6857B601" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_A4D74C0C398E4505EF9943E7D5722E77" xlink:to="loc_us-gaap_SummaryOfIncomeTaxContingenciesTextBlock_015B63095CAA2EC25813443F6857B601" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/IntangibleAssets" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_2743D083C76858359C28BF1F193CE39A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsDisclosureTextBlock" xlink:label="loc_us-gaap_IntangibleAssetsDisclosureTextBlock_AEE0848363D2522AA213747A827CFC44" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_2743D083C76858359C28BF1F193CE39A" xlink:to="loc_us-gaap_IntangibleAssetsDisclosureTextBlock_AEE0848363D2522AA213747A827CFC44" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/IntangibleAssetsAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_62467539C014134E381D424BE4322015" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_46B9FCE5164FDE318D9D428D63A677B2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_62467539C014134E381D424BE4322015" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_46B9FCE5164FDE318D9D428D63A677B2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_A6F8907FF61305D750F2428D63AA6B74" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_46B9FCE5164FDE318D9D428D63A677B2" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_A6F8907FF61305D750F2428D63AA6B74" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_B0400DD8FC78EB7F6850428D63AA348E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_A6F8907FF61305D750F2428D63AA6B74" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_B0400DD8FC78EB7F6850428D63AA348E" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_DomainNameandRelatedTrademarksDomain" xlink:label="loc_band_DomainNameandRelatedTrademarksDomain_EB2795BF63559F070C79428DDB106577" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_B0400DD8FC78EB7F6850428D63AA348E" xlink:to="loc_band_DomainNameandRelatedTrademarksDomain_EB2795BF63559F070C79428DDB106577" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_A58094512E305DD43A67428D63AB790E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_46B9FCE5164FDE318D9D428D63A677B2" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_A58094512E305DD43A67428D63AB790E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_2D82025732684BD87D5C424BE4321F38" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_A58094512E305DD43A67428D63AB790E" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_2D82025732684BD87D5C424BE4321F38" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_2BE771F1FA0E27BA5E0F424BE4321E06" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_A58094512E305DD43A67428D63AB790E" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_2BE771F1FA0E27BA5E0F424BE4321E06" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill_B5F16D8424C1209EA15A42973B8045A9" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_A58094512E305DD43A67428D63AB790E" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill_B5F16D8424C1209EA15A42973B8045A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOfIntangibleAssetsFinitelived" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_8EBF6DAA9278CF734027424BE433EBFB" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_A58094512E305DD43A67428D63AB790E" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_8EBF6DAA9278CF734027424BE433EBFB" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/IntangibleAssetsFutureEstimatedAmortizationExpenseDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_711672D9966EB164F03E3384663AD2AA" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_7145C44E6123B87B723D3384663AAAAF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_711672D9966EB164F03E3384663AD2AA" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_7145C44E6123B87B723D3384663AAAAF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_F873A17BE7A282C64ADB3384663A3F29" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_711672D9966EB164F03E3384663AD2AA" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_F873A17BE7A282C64ADB3384663A3F29" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_B8C880476A8B8BA634013384663A4215" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_711672D9966EB164F03E3384663AD2AA" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_B8C880476A8B8BA634013384663A4215" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_26686B117F139160BC453384663A1C1E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_711672D9966EB164F03E3384663AD2AA" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_26686B117F139160BC453384663A1C1E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_A372A8DAE6AC86B2C3F13384663A1DA9" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_711672D9966EB164F03E3384663AD2AA" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_A372A8DAE6AC86B2C3F13384663A1DA9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_B3D3DF56BAAA3FB96B5D3384663A3162" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_711672D9966EB164F03E3384663AD2AA" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_B3D3DF56BAAA3FB96B5D3384663A3162" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_CDD0B7A842EB874E4E363384663A3735" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_711672D9966EB164F03E3384663AD2AA" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_CDD0B7A842EB874E4E363384663A3735" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/IntangibleAssetsSummaryOfIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_48365E07F8868F09E58D33846650F0D7" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_6E00FE3D0666A552366433846651D650" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_48365E07F8868F09E58D33846650F0D7" xlink:to="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_6E00FE3D0666A552366433846651D650" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_55CBF25888DDDB69D7A333846651A2F9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_6E00FE3D0666A552366433846651D650" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_55CBF25888DDDB69D7A333846651A2F9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_DA582C5F58C144F5103533846651B312" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_55CBF25888DDDB69D7A333846651A2F9" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_DA582C5F58C144F5103533846651B312" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LicensingAgreementsMember" xlink:label="loc_us-gaap_LicensingAgreementsMember_8FF31E6E95A002A801DD33846651E5CE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_DA582C5F58C144F5103533846651B312" xlink:to="loc_us-gaap_LicensingAgreementsMember_8FF31E6E95A002A801DD33846651E5CE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_1C55357EBC9C9238C5C833846651B278" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_6E00FE3D0666A552366433846651D650" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_1C55357EBC9C9238C5C833846651B278" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_62369AFF7E2F152D10FF33846651E558" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_1C55357EBC9C9238C5C833846651B278" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_62369AFF7E2F152D10FF33846651E558" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_A68C8F9BC09EF9EC698F3384665151CB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_48365E07F8868F09E58D33846650F0D7" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_A68C8F9BC09EF9EC698F3384665151CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_5653A1968F8D7341997733846651A01E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_A68C8F9BC09EF9EC698F3384665151CB" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_5653A1968F8D7341997733846651A01E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_9EBECE1945D49059BBCE33846651FAF4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_5653A1968F8D7341997733846651A01E" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_9EBECE1945D49059BBCE33846651FAF4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CustomerRelationshipsMember" xlink:label="loc_us-gaap_CustomerRelationshipsMember_737D8AA167C2CF7D894D338466518781" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_9EBECE1945D49059BBCE33846651FAF4" xlink:to="loc_us-gaap_CustomerRelationshipsMember_737D8AA167C2CF7D894D338466518781" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_DomainNameandRelatedTrademarksDomain" xlink:label="loc_band_DomainNameandRelatedTrademarksDomain_02DAFC01EF7A2A0201B43384665186E8" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_9EBECE1945D49059BBCE33846651FAF4" xlink:to="loc_band_DomainNameandRelatedTrademarksDomain_02DAFC01EF7A2A0201B43384665186E8" xlink:type="arc" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_9EBECE1945D49059BBCE33846651FAF4" xlink:to="loc_us-gaap_LicensingAgreementsMember_8FF31E6E95A002A801DD33846651E5CE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoncompeteAgreementsMember" xlink:label="loc_us-gaap_NoncompeteAgreementsMember_45AE4A671E6C4DAC97AD33846651754E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_9EBECE1945D49059BBCE33846651FAF4" xlink:to="loc_us-gaap_NoncompeteAgreementsMember_45AE4A671E6C4DAC97AD33846651754E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DevelopedTechnologyRightsMember" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_2BAEC384F7ACB0DEB1B333846651355F" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_9EBECE1945D49059BBCE33846651FAF4" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_2BAEC384F7ACB0DEB1B333846651355F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_7C16D2CC8AD44C9282F1338466517E8A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_A68C8F9BC09EF9EC698F3384665151CB" xlink:to="loc_us-gaap_RangeAxis_7C16D2CC8AD44C9282F1338466517E8A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_4F44128190AF1CE6D41533846651CBFD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_7C16D2CC8AD44C9282F1338466517E8A" xlink:to="loc_us-gaap_RangeMember_4F44128190AF1CE6D41533846651CBFD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_96D2BF8BB18E384DCEE533846651EDA6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_4F44128190AF1CE6D41533846651CBFD" xlink:to="loc_us-gaap_MinimumMember_96D2BF8BB18E384DCEE533846651EDA6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_E3C2C1DB63EDCAD196F433846651273E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_4F44128190AF1CE6D41533846651CBFD" xlink:to="loc_us-gaap_MaximumMember_E3C2C1DB63EDCAD196F433846651273E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_916F81C7DA501B2E822233846651B2D7" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_A68C8F9BC09EF9EC698F3384665151CB" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_916F81C7DA501B2E822233846651B2D7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_FBEBE6B0935A696DA40D3384665101FF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_916F81C7DA501B2E822233846651B2D7" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_FBEBE6B0935A696DA40D3384665101FF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_EC5694C2F6EB4B55EB2733846652FB0F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_916F81C7DA501B2E822233846651B2D7" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_EC5694C2F6EB4B55EB2733846652FB0F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_3CE808FFEBFAE407007B33846652073D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_916F81C7DA501B2E822233846651B2D7" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_3CE808FFEBFAE407007B33846652073D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_04511EA4598CF49C274433846652A98A" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_916F81C7DA501B2E822233846651B2D7" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_04511EA4598CF49C274433846652A98A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_9A8801D9E547F7919E18338466526EE1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_48365E07F8868F09E58D33846650F0D7" xlink:to="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_9A8801D9E547F7919E18338466526EE1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_BE62569B842A42E8E77C33846657AE94" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_48365E07F8868F09E58D33846650F0D7" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_BE62569B842A42E8E77C33846657AE94" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/IntangibleAssetsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_87EFFFD87B2C6EBE967D3384665A392E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTableTextBlock_A39B53DECFEAD4F4DE623384665AE86B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_87EFFFD87B2C6EBE967D3384665A392E" xlink:to="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTableTextBlock_A39B53DECFEAD4F4DE623384665AE86B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock" xlink:label="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_C0AEFF3B48484E6DBB873384665A0992" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_87EFFFD87B2C6EBE967D3384665A392E" xlink:to="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_C0AEFF3B48484E6DBB873384665A0992" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/OrganizationAndDescriptionOfBusiness" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_880673E7CC2655728B89988665BB6080" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_35AB53027B8A5E37ABF41D2B9297D3E3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_880673E7CC2655728B89988665BB6080" xlink:to="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_35AB53027B8A5E37ABF41D2B9297D3E3" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/OrganizationAndDescriptionOfBusinessDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_4F2360EBF453D2424FDE7C517704BC37" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_891EEA0F6E56B6A91FC67C5177043297" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_4F2360EBF453D2424FDE7C517704BC37" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_891EEA0F6E56B6A91FC67C5177043297" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_BAC4B252B471D8CB0CEB7C51770420DC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_891EEA0F6E56B6A91FC67C5177043297" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_BAC4B252B471D8CB0CEB7C51770420DC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_CA180B9A582A41B161C87C51770434E9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_BAC4B252B471D8CB0CEB7C51770420DC" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_CA180B9A582A41B161C87C51770434E9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IPOMember" xlink:label="loc_us-gaap_IPOMember_E831883F7F926E97F0C67C517704A883" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_CA180B9A582A41B161C87C51770434E9" xlink:to="loc_us-gaap_IPOMember_E831883F7F926E97F0C67C517704A883" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_20BDA6E36006EA2160FB7C5177044C4F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_891EEA0F6E56B6A91FC67C5177043297" xlink:to="loc_us-gaap_StatementClassOfStockAxis_20BDA6E36006EA2160FB7C5177044C4F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_7E245A280D7882820AD27C517704E308" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_20BDA6E36006EA2160FB7C5177044C4F" xlink:to="loc_us-gaap_ClassOfStockDomain_7E245A280D7882820AD27C517704E308" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_88188E170E706D1207467C517704CB14" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_7E245A280D7882820AD27C517704E308" xlink:to="loc_us-gaap_CommonClassBMember_88188E170E706D1207467C517704CB14" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_89006FBC6E20407E23137C517704CBFC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_7E245A280D7882820AD27C517704E308" xlink:to="loc_us-gaap_CommonClassAMember_89006FBC6E20407E23137C517704CBFC" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_NewCommonClassADomain" xlink:label="loc_band_NewCommonClassADomain_E7A9C986516B40A078217C51770440E4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_7E245A280D7882820AD27C517704E308" xlink:to="loc_band_NewCommonClassADomain_E7A9C986516B40A078217C51770440E4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_64794B3F0D5CAAB3912A7C7859F74EAE" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_891EEA0F6E56B6A91FC67C5177043297" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_64794B3F0D5CAAB3912A7C7859F74EAE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_66BC5634EBAE9A8113727C785A03943B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_64794B3F0D5CAAB3912A7C7859F74EAE" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_66BC5634EBAE9A8113727C785A03943B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecuredDebtMember" xlink:label="loc_us-gaap_SecuredDebtMember_038B3823383B0E4D20577C785A718161" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_66BC5634EBAE9A8113727C785A03943B" xlink:to="loc_us-gaap_SecuredDebtMember_038B3823383B0E4D20577C785A718161" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D658E0FB8EEC91C727327C5177043778" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_891EEA0F6E56B6A91FC67C5177043297" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D658E0FB8EEC91C727327C5177043778" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfOperatingSegments" xlink:label="loc_us-gaap_NumberOfOperatingSegments_C14B781DD02287A6FFB57C51770444A1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D658E0FB8EEC91C727327C5177043778" xlink:to="loc_us-gaap_NumberOfOperatingSegments_C14B781DD02287A6FFB57C51770444A1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="loc_us-gaap_NumberOfReportableSegments_342106DF01A0EFE223587C517704C579" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D658E0FB8EEC91C727327C5177043778" xlink:to="loc_us-gaap_NumberOfReportableSegments_342106DF01A0EFE223587C517704C579" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_CommonStockConversionBasisRatio" xlink:label="loc_band_CommonStockConversionBasisRatio_E01A38B92ACAC0535F257C517704460B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D658E0FB8EEC91C727327C5177043778" xlink:to="loc_band_CommonStockConversionBasisRatio_E01A38B92ACAC0535F257C517704460B" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_CommonStockVotingRightsVotesPerShare" xlink:label="loc_band_CommonStockVotingRightsVotesPerShare_9ABBB99CF0F341A150CA7C517704B2FD" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D658E0FB8EEC91C727327C5177043778" xlink:to="loc_band_CommonStockVotingRightsVotesPerShare_9ABBB99CF0F341A150CA7C517704B2FD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_155E7B9ECB412BF6E2B17C517704F164" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D658E0FB8EEC91C727327C5177043778" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_155E7B9ECB412BF6E2B17C517704F164" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SaleOfStockPricePerShare" xlink:label="loc_us-gaap_SaleOfStockPricePerShare_31F3B4AAF0DA6D7E836A7C517704C780" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D658E0FB8EEC91C727327C5177043778" xlink:to="loc_us-gaap_SaleOfStockPricePerShare_31F3B4AAF0DA6D7E836A7C517704C780" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_8640F0C29A05D88F1F757C51770498A4" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D658E0FB8EEC91C727327C5177043778" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_8640F0C29A05D88F1F757C51770498A4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsOfStockIssuanceCosts" xlink:label="loc_us-gaap_PaymentsOfStockIssuanceCosts_A94620C804EC6730269C7C517704275E" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D658E0FB8EEC91C727327C5177043778" xlink:to="loc_us-gaap_PaymentsOfStockIssuanceCosts_A94620C804EC6730269C7C517704275E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_F19A2689A162352BF97F7C7859AF6129" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D658E0FB8EEC91C727327C5177043778" xlink:to="loc_us-gaap_LongTermDebt_F19A2689A162352BF97F7C7859AF6129" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/PropertyAndEquipment" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_5DE6CF5F421C5C2A88042FA3ADAF32B3" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_0BA2DE50D2F15D3C92A67F8406A8F055" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_5DE6CF5F421C5C2A88042FA3ADAF32B3" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_0BA2DE50D2F15D3C92A67F8406A8F055" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/PropertyAndEquipmentAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_8E5A9C24BF0D421D89A1445B471865BD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_8E20BDB63210CE4297A9445B4719AFA2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_8E5A9C24BF0D421D89A1445B471865BD" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_8E20BDB63210CE4297A9445B4719AFA2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_3899BD4C8D2DDC3F8871445B47192321" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_8E20BDB63210CE4297A9445B4719AFA2" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_3899BD4C8D2DDC3F8871445B47192321" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_A44F93C17358A6C6F720445B471900AF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_3899BD4C8D2DDC3F8871445B47192321" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_A44F93C17358A6C6F720445B471900AF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SoftwareDevelopmentMember" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_3B373540AD4D3597B20D445B47198EBF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_A44F93C17358A6C6F720445B471900AF" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_3B373540AD4D3597B20D445B47198EBF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_82EED7218C99914309B4445B4719A2FE" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_8E20BDB63210CE4297A9445B4719AFA2" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_82EED7218C99914309B4445B4719A2FE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_90D4A1BC1799FF371F76445B4719B181" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_82EED7218C99914309B4445B4719A2FE" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_90D4A1BC1799FF371F76445B4719B181" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalizedComputerSoftwareGross" xlink:label="loc_us-gaap_CapitalizedComputerSoftwareGross_7E2FD4074BF4AEE81B5E445B47192EC3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_82EED7218C99914309B4445B4719A2FE" xlink:to="loc_us-gaap_CapitalizedComputerSoftwareGross_7E2FD4074BF4AEE81B5E445B47192EC3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalizedComputerSoftwareAmortization1" xlink:label="loc_us-gaap_CapitalizedComputerSoftwareAmortization1_12E6102E652B5EA41599445B47198204" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_82EED7218C99914309B4445B4719A2FE" xlink:to="loc_us-gaap_CapitalizedComputerSoftwareAmortization1_12E6102E652B5EA41599445B47198204" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalizedComputerSoftwareImpairments1" xlink:label="loc_us-gaap_CapitalizedComputerSoftwareImpairments1_B3D518DF1F29423C5415445B4719B7CF" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_82EED7218C99914309B4445B4719A2FE" xlink:to="loc_us-gaap_CapitalizedComputerSoftwareImpairments1_B3D518DF1F29423C5415445B4719B7CF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalizedComputerSoftwareAdditions" xlink:label="loc_us-gaap_CapitalizedComputerSoftwareAdditions_7A9A69CCBF3B4B8B8A32445B47192596" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_82EED7218C99914309B4445B4719A2FE" xlink:to="loc_us-gaap_CapitalizedComputerSoftwareAdditions_7A9A69CCBF3B4B8B8A32445B47192596" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/PropertyAndEquipmentDepreciationExpenseDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_380DDF9163F315165CAF33846669CCF8" xlink:type="locator" />
    <link:loc xlink:href="band-20171231.xsd#band_DepreciationExpenseTable" xlink:label="loc_band_DepreciationExpenseTable_D308281E19AEC3C4F970338466699628" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_380DDF9163F315165CAF33846669CCF8" xlink:to="loc_band_DepreciationExpenseTable_D308281E19AEC3C4F970338466699628" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_8B855EE54E61E6AF5CB33384666926F6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_DepreciationExpenseTable_D308281E19AEC3C4F970338466699628" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_8B855EE54E61E6AF5CB33384666926F6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_85C8A752452117C7205F338466691359" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_8B855EE54E61E6AF5CB33384666926F6" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_85C8A752452117C7205F338466691359" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfSalesMember" xlink:label="loc_us-gaap_CostOfSalesMember_D2C2E735CBFBBA088FE633846669759C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_85C8A752452117C7205F338466691359" xlink:to="loc_us-gaap_CostOfSalesMember_D2C2E735CBFBBA088FE633846669759C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ResearchAndDevelopmentExpenseMember" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_63269DF1734130E4D22833846669CE64" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_85C8A752452117C7205F338466691359" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_63269DF1734130E4D22833846669CE64" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SellingAndMarketingExpenseMember" xlink:label="loc_us-gaap_SellingAndMarketingExpenseMember_50CE984E16BCA020D9303384666927BF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_85C8A752452117C7205F338466691359" xlink:to="loc_us-gaap_SellingAndMarketingExpenseMember_50CE984E16BCA020D9303384666927BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseMember" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember_FB4FA4A098EB523AFAC8338466698DB6" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_85C8A752452117C7205F338466691359" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpenseMember_FB4FA4A098EB523AFAC8338466698DB6" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_DepreciationExpenseLineItems" xlink:label="loc_band_DepreciationExpenseLineItems_0781A70CA320ED9241D733846669F867" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_DepreciationExpenseTable_D308281E19AEC3C4F970338466699628" xlink:to="loc_band_DepreciationExpenseLineItems_0781A70CA320ED9241D733846669F867" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaap_Depreciation_F4CDE2D2ECD123DD480A33846669C2BC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_band_DepreciationExpenseLineItems_0781A70CA320ED9241D733846669F867" xlink:to="loc_us-gaap_Depreciation_F4CDE2D2ECD123DD480A33846669C2BC" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/PropertyAndEquipmentSummaryOfPropertyAndEquipmentNetDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_A34F9D30FF28565DB433F12B483E3881" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_A045ED5E5CC35BE08D7581A2BA2F8DE9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_A34F9D30FF28565DB433F12B483E3881" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_A045ED5E5CC35BE08D7581A2BA2F8DE9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_AC795EDA008D5D849AF5E744C44F44D9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_A045ED5E5CC35BE08D7581A2BA2F8DE9" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_AC795EDA008D5D849AF5E744C44F44D9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ED71369CEA5455E1A7FAE88731DA96D8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_AC795EDA008D5D849AF5E744C44F44D9" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ED71369CEA5455E1A7FAE88731DA96D8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_5E838EF17F085DC6B98935CCA4889867" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ED71369CEA5455E1A7FAE88731DA96D8" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_5E838EF17F085DC6B98935CCA4889867" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_ComputerandOfficeEquipmentMember" xlink:label="loc_band_ComputerandOfficeEquipmentMember_BAE1F6E83BD659B8AFC3992E54C7863B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ED71369CEA5455E1A7FAE88731DA96D8" xlink:to="loc_band_ComputerandOfficeEquipmentMember_BAE1F6E83BD659B8AFC3992E54C7863B" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_TelecommunicationsEquipmentMember" xlink:label="loc_band_TelecommunicationsEquipmentMember_52E809E0EC6A5F049E7B2FD9CC816DB0" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ED71369CEA5455E1A7FAE88731DA96D8" xlink:to="loc_band_TelecommunicationsEquipmentMember_52E809E0EC6A5F049E7B2FD9CC816DB0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeaseholdImprovementsMember" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_F3DA176DC2C159EDB30AC3CD198FE1C8" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ED71369CEA5455E1A7FAE88731DA96D8" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_F3DA176DC2C159EDB30AC3CD198FE1C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SoftwareDevelopmentMember" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_F0F65BBDBF465CD09CE16F14B2256C57" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ED71369CEA5455E1A7FAE88731DA96D8" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_F0F65BBDBF465CD09CE16F14B2256C57" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AutomobilesMember" xlink:label="loc_us-gaap_AutomobilesMember_3DE75B96781C5F49B64378C48BF7306A" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ED71369CEA5455E1A7FAE88731DA96D8" xlink:to="loc_us-gaap_AutomobilesMember_3DE75B96781C5F49B64378C48BF7306A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_A319C18D4285514D9F63F61F8BEB0D6C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_A045ED5E5CC35BE08D7581A2BA2F8DE9" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_A319C18D4285514D9F63F61F8BEB0D6C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_04AD372AFDF45EE49BE557899E608C1D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_A319C18D4285514D9F63F61F8BEB0D6C" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_04AD372AFDF45EE49BE557899E608C1D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_E8F7B570417E5E13B6AE1E2E333E519F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_A319C18D4285514D9F63F61F8BEB0D6C" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_E8F7B570417E5E13B6AE1E2E333E519F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_778534E1EE465A91AEFE6D584493AA90" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_A319C18D4285514D9F63F61F8BEB0D6C" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_778534E1EE465A91AEFE6D584493AA90" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/PropertyAndEquipmentTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_9C2018810E955C66AF1E24DF5406C275" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_7F81FE6080E058C884D49C6C36147E63" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_9C2018810E955C66AF1E24DF5406C275" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_7F81FE6080E058C884D49C6C36147E63" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_0461B333785B542E92B1E9884363B70E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_9C2018810E955C66AF1E24DF5406C275" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_0461B333785B542E92B1E9884363B70E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/RedeemableConvertiblePreferredStockAndStockholdersDeficitEquity" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_8A855EFB42CE06BA42BA7C5176A7E50C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:label="loc_us-gaap_StockholdersEquityNoteDisclosureTextBlock_9874634A95276B0A3C237C5176A7E9DF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_8A855EFB42CE06BA42BA7C5176A7E50C" xlink:to="loc_us-gaap_StockholdersEquityNoteDisclosureTextBlock_9874634A95276B0A3C237C5176A7E9DF" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_BC8C7DC1BF1F5F28580F7C5176A502F0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteStockSplitConversionRatio1" xlink:label="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_83182B034B3A41A5DC367C5176A562C7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_BC8C7DC1BF1F5F28580F7C5176A502F0" xlink:to="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_83182B034B3A41A5DC367C5176A562C7" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityCommonStockDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_ABFA850676CBFB82C5377C51769D0CBE" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_827A0244CD0D30E93D9E7C51769D7407" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ABFA850676CBFB82C5377C51769D0CBE" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_827A0244CD0D30E93D9E7C51769D7407" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_BB282B5E6BCF8F9422C07C51769D3A30" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_827A0244CD0D30E93D9E7C51769D7407" xlink:to="loc_us-gaap_StatementClassOfStockAxis_BB282B5E6BCF8F9422C07C51769D3A30" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_B5F67EE21173B6B1AB617C51769D4DB4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_BB282B5E6BCF8F9422C07C51769D3A30" xlink:to="loc_us-gaap_ClassOfStockDomain_B5F67EE21173B6B1AB617C51769D4DB4" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_OldCommonClassAMember" xlink:label="loc_band_OldCommonClassAMember_5B92C3E77F7BE177FF657C51769D51DF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_B5F67EE21173B6B1AB617C51769D4DB4" xlink:to="loc_band_OldCommonClassAMember_5B92C3E77F7BE177FF657C51769D51DF" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_OldCommonClassBMember" xlink:label="loc_band_OldCommonClassBMember_B5AAA02AD77200760EAE7C51769DA72C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_B5F67EE21173B6B1AB617C51769D4DB4" xlink:to="loc_band_OldCommonClassBMember_B5AAA02AD77200760EAE7C51769DA72C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_7913DA3E828E9DBADD777C51769DE267" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_B5F67EE21173B6B1AB617C51769D4DB4" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_7913DA3E828E9DBADD777C51769DE267" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_NewCommonClassBDomain" xlink:label="loc_band_NewCommonClassBDomain_BE651A3EF6B3B708E71A7C51769D6F26" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_B5F67EE21173B6B1AB617C51769D4DB4" xlink:to="loc_band_NewCommonClassBDomain_BE651A3EF6B3B708E71A7C51769D6F26" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_AA63A8F621A3C16795DB7C51769DB2DF" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_B5F67EE21173B6B1AB617C51769D4DB4" xlink:to="loc_us-gaap_CommonClassBMember_AA63A8F621A3C16795DB7C51769DB2DF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_F14333C4F65D570615107C51769DFD41" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_B5F67EE21173B6B1AB617C51769D4DB4" xlink:to="loc_us-gaap_CommonClassAMember_F14333C4F65D570615107C51769DFD41" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_us-gaap_ClassOfStockLineItems_1BCF3B5888D38F54475F7C51769DA9D1" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_827A0244CD0D30E93D9E7C51769D7407" xlink:to="loc_us-gaap_ClassOfStockLineItems_1BCF3B5888D38F54475F7C51769DA9D1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_A825B217A130C4B722C37C51769D9967" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_1BCF3B5888D38F54475F7C51769DA9D1" xlink:to="loc_us-gaap_CommonStockSharesIssued_A825B217A130C4B722C37C51769D9967" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_6A15CE6808ABB4E1F39B7C51769D84CD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_1BCF3B5888D38F54475F7C51769DA9D1" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_6A15CE6808ABB4E1F39B7C51769D84CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_FD6CD8387431D7719B6D7C51769E070A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_1BCF3B5888D38F54475F7C51769DA9D1" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_FD6CD8387431D7719B6D7C51769E070A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteStockSplitConversionRatio1" xlink:label="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_A173C10F41E69A5828B97C51769EC89E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_1BCF3B5888D38F54475F7C51769DA9D1" xlink:to="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_A173C10F41E69A5828B97C51769EC89E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_8FF5365E5D44CB9426857C51769E0E74" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_1BCF3B5888D38F54475F7C51769DA9D1" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_8FF5365E5D44CB9426857C51769E0E74" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_F48A70A4725BDA56C7CB7C51769E9822" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_1BCF3B5888D38F54475F7C51769DA9D1" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_F48A70A4725BDA56C7CB7C51769E9822" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_CommonStockVotingRightsVotesPerShare" xlink:label="loc_band_CommonStockVotingRightsVotesPerShare_B715723C2C44D6D33D187C51769E671D" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_1BCF3B5888D38F54475F7C51769DA9D1" xlink:to="loc_band_CommonStockVotingRightsVotesPerShare_B715723C2C44D6D33D187C51769E671D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockDividendsPerShareDeclared" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_713D51F823979B228D837C51769E21D4" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_1BCF3B5888D38F54475F7C51769DA9D1" xlink:to="loc_us-gaap_CommonStockDividendsPerShareDeclared_713D51F823979B228D837C51769E21D4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityOptionToPurchaseAdditionalSharesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_640218B2FA36603E4B51BFBF37920169" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_A11E13E2248045A2065EBFBF3792A0B4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_640218B2FA36603E4B51BFBF37920169" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_A11E13E2248045A2065EBFBF3792A0B4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_BA2DDA16427A67722449BFBF3792C104" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_A11E13E2248045A2065EBFBF3792A0B4" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_BA2DDA16427A67722449BFBF3792C104" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_17A482C334F5A7C0C41BBFBF37928140" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_BA2DDA16427A67722449BFBF3792C104" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_17A482C334F5A7C0C41BBFBF37928140" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OverAllotmentOptionMember" xlink:label="loc_us-gaap_OverAllotmentOptionMember_0BC2623570DDA8D8E919BFBF37921EAE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_17A482C334F5A7C0C41BBFBF37928140" xlink:to="loc_us-gaap_OverAllotmentOptionMember_0BC2623570DDA8D8E919BFBF37921EAE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_A059995B5BA8A4100B99BFBF3792052F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_A11E13E2248045A2065EBFBF3792A0B4" xlink:to="loc_us-gaap_StatementClassOfStockAxis_A059995B5BA8A4100B99BFBF3792052F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_998C7EDD5979C068175BBFBF3792D61D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_A059995B5BA8A4100B99BFBF3792052F" xlink:to="loc_us-gaap_ClassOfStockDomain_998C7EDD5979C068175BBFBF3792D61D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_2A4BA4ACA5147867655BBFBF3792BEB7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_998C7EDD5979C068175BBFBF3792D61D" xlink:to="loc_us-gaap_CommonClassAMember_2A4BA4ACA5147867655BBFBF3792BEB7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_us-gaap_ClassOfStockLineItems_13D4EB4FBE51B174F8A9BFBF3792E7AC" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_A11E13E2248045A2065EBFBF3792A0B4" xlink:to="loc_us-gaap_ClassOfStockLineItems_13D4EB4FBE51B174F8A9BFBF3792E7AC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_7F486BE209A708720210BFBF37926203" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_13D4EB4FBE51B174F8A9BFBF3792E7AC" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_7F486BE209A708720210BFBF37926203" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityPreferredStockDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_6493BF7796D04E978AA4CE035E8C4532" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfWarrantOrRightOutstanding" xlink:label="loc_us-gaap_ClassOfWarrantOrRightOutstanding_CB784B6E62CBA26D98C2CE035E8C7F97" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_6493BF7796D04E978AA4CE035E8C4532" xlink:to="loc_us-gaap_ClassOfWarrantOrRightOutstanding_CB784B6E62CBA26D98C2CE035E8C7F97" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_48D9CC1B2ABC391B52B8CE035E8C8060" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_6493BF7796D04E978AA4CE035E8C4532" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_48D9CC1B2ABC391B52B8CE035E8C8060" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_6083E3CC1859D1295668CE0FC74FF652" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_6493BF7796D04E978AA4CE035E8C4532" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_6083E3CC1859D1295668CE0FC74FF652" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="loc_us-gaap_PreferredStockSharesIssued_27293341AA2FF1C33E57CE035E8C738E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_6493BF7796D04E978AA4CE035E8C4532" xlink:to="loc_us-gaap_PreferredStockSharesIssued_27293341AA2FF1C33E57CE035E8C738E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_93A52ED673FD7751077BCE035E8C3B58" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_6493BF7796D04E978AA4CE035E8C4532" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_93A52ED673FD7751077BCE035E8C3B58" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityRedeemableConvertiblePreferredStockDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_8164AE3A5D5B1FA067CCCE035E8C3950" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_11AA9905FB5EE2372C45CE035E8C8004" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_8164AE3A5D5B1FA067CCCE035E8C3950" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_11AA9905FB5EE2372C45CE035E8C8004" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_C311654EC2B3F2FCE857CE035E8C7BEE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_11AA9905FB5EE2372C45CE035E8C8004" xlink:to="loc_us-gaap_StatementClassOfStockAxis_C311654EC2B3F2FCE857CE035E8C7BEE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_D940E2291E0F31A91871CE035E8CA8F6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_C311654EC2B3F2FCE857CE035E8C7BEE" xlink:to="loc_us-gaap_ClassOfStockDomain_D940E2291E0F31A91871CE035E8CA8F6" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_OldCommonClassAMember" xlink:label="loc_band_OldCommonClassAMember_CEBE4CBD0C0924E7635BCE035E8CCDA2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_D940E2291E0F31A91871CE035E8CA8F6" xlink:to="loc_band_OldCommonClassAMember_CEBE4CBD0C0924E7635BCE035E8CCDA2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_147EDB381DC2B021D326CE035E8C6378" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_D940E2291E0F31A91871CE035E8CA8F6" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_147EDB381DC2B021D326CE035E8C6378" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_NewCommonClassBDomain" xlink:label="loc_band_NewCommonClassBDomain_64122C42C56DE3F6F751CE035E8C6C2C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_D940E2291E0F31A91871CE035E8CA8F6" xlink:to="loc_band_NewCommonClassBDomain_64122C42C56DE3F6F751CE035E8C6C2C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_08D7E3758320B450E557CE035E8CAB63" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_D940E2291E0F31A91871CE035E8CA8F6" xlink:to="loc_us-gaap_CommonClassAMember_08D7E3758320B450E557CE035E8CAB63" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CounterpartyNameAxis" xlink:label="loc_us-gaap_CounterpartyNameAxis_96E9B714F1C20DF4B95FCE035E8CED8A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_11AA9905FB5EE2372C45CE035E8C8004" xlink:to="loc_us-gaap_CounterpartyNameAxis_96E9B714F1C20DF4B95FCE035E8CED8A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RepurchaseAgreementCounterpartyNameDomain" xlink:label="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_7AC5C8C1D34D600E70F1CE035E8CF554" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CounterpartyNameAxis_96E9B714F1C20DF4B95FCE035E8CED8A" xlink:to="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_7AC5C8C1D34D600E70F1CE035E8CF554" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_RepublicMember" xlink:label="loc_band_RepublicMember_9B6DAFF90554DFA4FAA6CE035E8C9D08" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_7AC5C8C1D34D600E70F1CE035E8CF554" xlink:to="loc_band_RepublicMember_9B6DAFF90554DFA4FAA6CE035E8C9D08" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_us-gaap_ClassOfStockLineItems_BCCA2C57CC8BDA6C2B86CE035E8C9AA1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_11AA9905FB5EE2372C45CE035E8C8004" xlink:to="loc_us-gaap_ClassOfStockLineItems_BCCA2C57CC8BDA6C2B86CE035E8C9AA1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquitySharesAuthorized" xlink:label="loc_us-gaap_TemporaryEquitySharesAuthorized_2692E035D92E0560A926CE035E8C7250" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BCCA2C57CC8BDA6C2B86CE035E8C9AA1" xlink:to="loc_us-gaap_TemporaryEquitySharesAuthorized_2692E035D92E0560A926CE035E8C7250" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquitySharesIssued" xlink:label="loc_us-gaap_TemporaryEquitySharesIssued_5D88890073C3532574A6CE035E8C428F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BCCA2C57CC8BDA6C2B86CE035E8C9AA1" xlink:to="loc_us-gaap_TemporaryEquitySharesIssued_5D88890073C3532574A6CE035E8C428F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquitySharesOutstanding" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_19778541185C1D5983F3CE035E8C54EB" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BCCA2C57CC8BDA6C2B86CE035E8C9AA1" xlink:to="loc_us-gaap_TemporaryEquitySharesOutstanding_19778541185C1D5983F3CE035E8C54EB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquityParOrStatedValuePerShare" xlink:label="loc_us-gaap_TemporaryEquityParOrStatedValuePerShare_6DFE51BBBA961010F958CE035E8C57F8" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BCCA2C57CC8BDA6C2B86CE035E8C9AA1" xlink:to="loc_us-gaap_TemporaryEquityParOrStatedValuePerShare_6DFE51BBBA961010F958CE035E8C57F8" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_PreferredStockConversionBasisRatio" xlink:label="loc_band_PreferredStockConversionBasisRatio_EEBE9C48AE89BDE262D6CE035E8C4D64" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BCCA2C57CC8BDA6C2B86CE035E8C9AA1" xlink:to="loc_band_PreferredStockConversionBasisRatio_EEBE9C48AE89BDE262D6CE035E8C4D64" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteStockSplitConversionRatio1" xlink:label="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_ABE63F7718F356912E51CE035E8C28F8" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BCCA2C57CC8BDA6C2B86CE035E8C9AA1" xlink:to="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_ABE63F7718F356912E51CE035E8C28F8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_B0CBC6FBFA9FE7838B0BCE035E8C6925" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BCCA2C57CC8BDA6C2B86CE035E8C9AA1" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_B0CBC6FBFA9FE7838B0BCE035E8C6925" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_ConvertiblePreferredStockConversionPrice" xlink:label="loc_band_ConvertiblePreferredStockConversionPrice_E60D0957F0ADB08BA7E9CE035E8C0ECF" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BCCA2C57CC8BDA6C2B86CE035E8C9AA1" xlink:to="loc_band_ConvertiblePreferredStockConversionPrice_E60D0957F0ADB08BA7E9CE035E8C0ECF" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_TemporaryEquityLiquidationPreferenceMultiple" xlink:label="loc_band_TemporaryEquityLiquidationPreferenceMultiple_E16FCCDF605517F7EEA2CE66FA809618" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BCCA2C57CC8BDA6C2B86CE035E8C9AA1" xlink:to="loc_band_TemporaryEquityLiquidationPreferenceMultiple_E16FCCDF605517F7EEA2CE66FA809618" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TemporaryEquityLiquidationPreference" xlink:label="loc_us-gaap_TemporaryEquityLiquidationPreference_D2C69BF422EADC7E566FCE035E8C7424" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BCCA2C57CC8BDA6C2B86CE035E8C9AA1" xlink:to="loc_us-gaap_TemporaryEquityLiquidationPreference_D2C69BF422EADC7E566FCE035E8C7424" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_TemporaryEquityRedemptionPeriod" xlink:label="loc_band_TemporaryEquityRedemptionPeriod_C7AC67D254C592777917CE035E8CF123" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BCCA2C57CC8BDA6C2B86CE035E8C9AA1" xlink:to="loc_band_TemporaryEquityRedemptionPeriod_C7AC67D254C592777917CE035E8CF123" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharesIssuedPricePerShare" xlink:label="loc_us-gaap_SharesIssuedPricePerShare_9A73D850083860A7A683CE035E8CE225" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BCCA2C57CC8BDA6C2B86CE035E8C9AA1" xlink:to="loc_us-gaap_SharesIssuedPricePerShare_9A73D850083860A7A683CE035E8CE225" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockDividendsPerShareDeclared" xlink:label="loc_us-gaap_PreferredStockDividendsPerShareDeclared_56003DFE137BB73EECE2CE035E8C52B2" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BCCA2C57CC8BDA6C2B86CE035E8C9AA1" xlink:to="loc_us-gaap_PreferredStockDividendsPerShareDeclared_56003DFE137BB73EECE2CE035E8C52B2" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/RedeemableConvertiblePreferredStockAndStockholdersDeficitEquitySpinOffDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_BE6CFADCDA8A0D60D2077C5176949E70" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_056D2CCF633C96E15F707C5176954901" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_BE6CFADCDA8A0D60D2077C5176949E70" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_056D2CCF633C96E15F707C5176954901" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_618B32FBDDC8766417D27C5176955A2C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_056D2CCF633C96E15F707C5176954901" xlink:to="loc_us-gaap_StatementClassOfStockAxis_618B32FBDDC8766417D27C5176955A2C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_308CCC859F89EEE04D8C7C517695C99E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_618B32FBDDC8766417D27C5176955A2C" xlink:to="loc_us-gaap_ClassOfStockDomain_308CCC859F89EEE04D8C7C517695C99E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_E8402C5014ED10FC2D637C517695D1B3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_308CCC859F89EEE04D8C7C517695C99E" xlink:to="loc_us-gaap_CommonClassAMember_E8402C5014ED10FC2D637C517695D1B3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_BDB7C678B117335F0FFB7C51769531C6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_308CCC859F89EEE04D8C7C517695C99E" xlink:to="loc_us-gaap_CommonClassBMember_BDB7C678B117335F0FFB7C51769531C6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CounterpartyNameAxis" xlink:label="loc_us-gaap_CounterpartyNameAxis_F4C50617FFEAF874FB787C5176958132" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_056D2CCF633C96E15F707C5176954901" xlink:to="loc_us-gaap_CounterpartyNameAxis_F4C50617FFEAF874FB787C5176958132" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RepurchaseAgreementCounterpartyNameDomain" xlink:label="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_6572D742187BE32F7F737C5176959D3F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CounterpartyNameAxis_F4C50617FFEAF874FB787C5176958132" xlink:to="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_6572D742187BE32F7F737C5176959D3F" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_RepublicMember" xlink:label="loc_band_RepublicMember_4F968F9AE7CF715133BF7C517695620A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_6572D742187BE32F7F737C5176959D3F" xlink:to="loc_band_RepublicMember_4F968F9AE7CF715133BF7C517695620A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_us-gaap_ClassOfStockLineItems_898D50C3F014FA57CA9F7C517695E6F9" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_056D2CCF633C96E15F707C5176954901" xlink:to="loc_us-gaap_ClassOfStockLineItems_898D50C3F014FA57CA9F7C517695E6F9" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_CommonStockConversionBasisRatio" xlink:label="loc_band_CommonStockConversionBasisRatio_5A25CAA84CF4D3F9E7137C51769517CF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_898D50C3F014FA57CA9F7C517695E6F9" xlink:to="loc_band_CommonStockConversionBasisRatio_5A25CAA84CF4D3F9E7137C51769517CF" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/RedeemableConvertiblePreferredStockAndStockholdersDeficitEquityStockPurchaseWarrantsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_43F8CEEF4F28A0F63429BF44E7C0788B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_12611EB36ED707B014C6BF44E7C193DA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_43F8CEEF4F28A0F63429BF44E7C0788B" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_12611EB36ED707B014C6BF44E7C193DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfWarrantOrRightAxis" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_E301B7409B1B590C13BFBF44E7C1B22F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_12611EB36ED707B014C6BF44E7C193DA" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_E301B7409B1B590C13BFBF44E7C1B22F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_B9D247304C9DDEBBE6D1BF44E7C13A18" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_E301B7409B1B590C13BFBF44E7C1B22F" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_B9D247304C9DDEBBE6D1BF44E7C13A18" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_StockPurchaseWarrantMember" xlink:label="loc_band_StockPurchaseWarrantMember_B4E2DB592104D89FE461BF44E7C10DDF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_B9D247304C9DDEBBE6D1BF44E7C13A18" xlink:to="loc_band_StockPurchaseWarrantMember_B4E2DB592104D89FE461BF44E7C10DDF" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_StockPurchaseWarrantExpireMarch252018Member" xlink:label="loc_band_StockPurchaseWarrantExpireMarch252018Member_21ECB0082B359C2EEC7DBF44E7C10629" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_B9D247304C9DDEBBE6D1BF44E7C13A18" xlink:to="loc_band_StockPurchaseWarrantExpireMarch252018Member_21ECB0082B359C2EEC7DBF44E7C10629" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_StockPurchaseWarrantExpireFebruary222018Member" xlink:label="loc_band_StockPurchaseWarrantExpireFebruary222018Member_5CEBE09E9F125713EFCEBF44E7C18D50" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_B9D247304C9DDEBBE6D1BF44E7C13A18" xlink:to="loc_band_StockPurchaseWarrantExpireFebruary222018Member_5CEBE09E9F125713EFCEBF44E7C18D50" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_StockPurchaseWarrantExpireJanuary192018Member" xlink:label="loc_band_StockPurchaseWarrantExpireJanuary192018Member_6B340B00FF35655F1331BF44E7C1A91A" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_B9D247304C9DDEBBE6D1BF44E7C13A18" xlink:to="loc_band_StockPurchaseWarrantExpireJanuary192018Member_6B340B00FF35655F1331BF44E7C1A91A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_us-gaap_ClassOfStockLineItems_A29768FDAB3EE673DAEFBF44E7C13FA5" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_12611EB36ED707B014C6BF44E7C193DA" xlink:to="loc_us-gaap_ClassOfStockLineItems_A29768FDAB3EE673DAEFBF44E7C13FA5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_BAC4C1597C59836A6989BF44E7C1D137" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_A29768FDAB3EE673DAEFBF44E7C13FA5" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_BAC4C1597C59836A6989BF44E7C1D137" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_6C9A3C3A49EF971E16ABBF44E7C14816" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_A29768FDAB3EE673DAEFBF44E7C13FA5" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_6C9A3C3A49EF971E16ABBF44E7C14816" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfWarrantOrRightOutstanding" xlink:label="loc_us-gaap_ClassOfWarrantOrRightOutstanding_D4AE1AB668CBE8700FEDBF44E7C187D0" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_A29768FDAB3EE673DAEFBF44E7C13FA5" xlink:to="loc_us-gaap_ClassOfWarrantOrRightOutstanding_D4AE1AB668CBE8700FEDBF44E7C187D0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance" xlink:label="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_382D539014AE1CE11F72BF44E7C1A60D" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_A29768FDAB3EE673DAEFBF44E7C13FA5" xlink:to="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_382D539014AE1CE11F72BF44E7C1A60D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/RelatedParties" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract_971DAA9CE2AF5E9294DC88E03B7C4F26" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:label="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_EFBB11DBCA3E57969838FEBB403E0933" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract_971DAA9CE2AF5E9294DC88E03B7C4F26" xlink:to="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_EFBB11DBCA3E57969838FEBB403E0933" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/RelatedPartiesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract_CC9FE118DE727FFBB677C3935EAE3E24" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_DD2C36848F8CC18ECBFEC3935EAEB4E3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract_CC9FE118DE727FFBB677C3935EAE3E24" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_DD2C36848F8CC18ECBFEC3935EAEB4E3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_BB82C152651CF9EBF60FC3935EAE7BFF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_DD2C36848F8CC18ECBFEC3935EAEB4E3" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_BB82C152651CF9EBF60FC3935EAE7BFF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain_815CE27040B816DF8D79C3935EAEF4DD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_BB82C152651CF9EBF60FC3935EAE7BFF" xlink:to="loc_us-gaap_RelatedPartyDomain_815CE27040B816DF8D79C3935EAEF4DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AffiliatedEntityMember" xlink:label="loc_us-gaap_AffiliatedEntityMember_8FC2BF660EA21A4567BDC3935EAE5360" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyDomain_815CE27040B816DF8D79C3935EAEF4DD" xlink:to="loc_us-gaap_AffiliatedEntityMember_8FC2BF660EA21A4567BDC3935EAE5360" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CounterpartyNameAxis" xlink:label="loc_us-gaap_CounterpartyNameAxis_99750C339C205BF19614C3935EAEDA79" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_DD2C36848F8CC18ECBFEC3935EAEB4E3" xlink:to="loc_us-gaap_CounterpartyNameAxis_99750C339C205BF19614C3935EAEDA79" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RepurchaseAgreementCounterpartyNameDomain" xlink:label="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_3201FFA425EDBF1D1626C3935EAE0461" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CounterpartyNameAxis_99750C339C205BF19614C3935EAEDA79" xlink:to="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_3201FFA425EDBF1D1626C3935EAE0461" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_RepublicMember" xlink:label="loc_band_RepublicMember_B909725EC559B71F08F3C3935EAF996F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RepurchaseAgreementCounterpartyNameDomain_3201FFA425EDBF1D1626C3935EAE0461" xlink:to="loc_band_RepublicMember_B909725EC559B71F08F3C3935EAF996F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_57C7C80880BE4465673AC3935EAF5640" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_DD2C36848F8CC18ECBFEC3935EAEB4E3" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_57C7C80880BE4465673AC3935EAF5640" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionDomain" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_3E0A7E7736E774BB6B10C3935EAFBB2A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_57C7C80880BE4465673AC3935EAF5640" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_3E0A7E7736E774BB6B10C3935EAFBB2A" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_TransitionServicesAgreementMember" xlink:label="loc_band_TransitionServicesAgreementMember_EA4653D241AB1D263FD1C3935EAFB2D1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_3E0A7E7736E774BB6B10C3935EAFBB2A" xlink:to="loc_band_TransitionServicesAgreementMember_EA4653D241AB1D263FD1C3935EAFB2D1" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_FacilitiesSharingAgreementMember" xlink:label="loc_band_FacilitiesSharingAgreementMember_ED9B8B465DD2B2204F2FC3935EAFD20E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_3E0A7E7736E774BB6B10C3935EAFBB2A" xlink:to="loc_band_FacilitiesSharingAgreementMember_ED9B8B465DD2B2204F2FC3935EAFD20E" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_TaxSharingAgreementMember" xlink:label="loc_band_TaxSharingAgreementMember_76E832EBB64C717C6661C3935EAFDB93" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_3E0A7E7736E774BB6B10C3935EAFBB2A" xlink:to="loc_band_TaxSharingAgreementMember_76E832EBB64C717C6661C3935EAFDB93" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_MasterServicesAgreementMember" xlink:label="loc_band_MasterServicesAgreementMember_90DAFB422A525DF813DAC3935EAFD35D" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_3E0A7E7736E774BB6B10C3935EAFBB2A" xlink:to="loc_band_MasterServicesAgreementMember_90DAFB422A525DF813DAC3935EAFD35D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_FA15129B6618C89C48ABC3935EAF0FCD" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_DD2C36848F8CC18ECBFEC3935EAEB4E3" xlink:to="loc_us-gaap_RelatedPartyTransactionLineItems_FA15129B6618C89C48ABC3935EAF0FCD" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_RelatedPartyTransactionTermofAgreement" xlink:label="loc_band_RelatedPartyTransactionTermofAgreement_9045CA6E1EA5A5B376F8C3935EAF5DAD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_FA15129B6618C89C48ABC3935EAF0FCD" xlink:to="loc_band_RelatedPartyTransactionTermofAgreement_9045CA6E1EA5A5B376F8C3935EAF5DAD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevenueFromRelatedParties" xlink:label="loc_us-gaap_RevenueFromRelatedParties_6B059533321C8EB9EE49C3935EAF9B0E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_FA15129B6618C89C48ABC3935EAF0FCD" xlink:to="loc_us-gaap_RevenueFromRelatedParties_6B059533321C8EB9EE49C3935EAF9B0E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsReceivableRelatedPartiesCurrent" xlink:label="loc_us-gaap_AccountsReceivableRelatedPartiesCurrent_AA6FC942AFA4AD0B21FEC3935EAFDD00" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_FA15129B6618C89C48ABC3935EAF0FCD" xlink:to="loc_us-gaap_AccountsReceivableRelatedPartiesCurrent_AA6FC942AFA4AD0B21FEC3935EAFDD00" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LessorLeasingArrangementsOperatingLeasesTermOfContract" xlink:label="loc_us-gaap_LessorLeasingArrangementsOperatingLeasesTermOfContract_9F263448091FF7682225C3935EAF1CA2" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_FA15129B6618C89C48ABC3935EAF0FCD" xlink:to="loc_us-gaap_LessorLeasingArrangementsOperatingLeasesTermOfContract_9F263448091FF7682225C3935EAF1CA2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue" xlink:label="loc_us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue_AC293A0C66006A87A8C0C3935EAF7925" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_FA15129B6618C89C48ABC3935EAF0FCD" xlink:to="loc_us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue_AC293A0C66006A87A8C0C3935EAF7925" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DueFromRelatedParties" xlink:label="loc_us-gaap_DueFromRelatedParties_416CEE80948434AAF16CC3935EAF0332" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_FA15129B6618C89C48ABC3935EAF0FCD" xlink:to="loc_us-gaap_DueFromRelatedParties_416CEE80948434AAF16CC3935EAF0332" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DueToRelatedPartiesCurrentAndNoncurrent" xlink:label="loc_us-gaap_DueToRelatedPartiesCurrentAndNoncurrent_D9158A86398A664B900FC3935EAFDE2B" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_FA15129B6618C89C48ABC3935EAF0FCD" xlink:to="loc_us-gaap_DueToRelatedPartiesCurrentAndNoncurrent_D9158A86398A664B900FC3935EAFDE2B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/SegmentAndGeographicInformation" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_6421B943F4BE55D3BB019109A24C317F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingDisclosureTextBlock" xlink:label="loc_us-gaap_SegmentReportingDisclosureTextBlock_8DE32A85ACF954EAA759919350909306" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_6421B943F4BE55D3BB019109A24C317F" xlink:to="loc_us-gaap_SegmentReportingDisclosureTextBlock_8DE32A85ACF954EAA759919350909306" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/SegmentAndGeographicInformationReconciliationOfRevenueByGeographicAreaDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_F61FD835A2875493ABEF4C3937C13618" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable" xlink:label="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_96F1351AF9EB5204A13F99BC8826F9AF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_F61FD835A2875493ABEF4C3937C13618" xlink:to="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_96F1351AF9EB5204A13F99BC8826F9AF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis_636E11186CE15CBEBA28D75310EF2F6E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_96F1351AF9EB5204A13F99BC8826F9AF" xlink:to="loc_us-gaap_StatementGeographicalAxis_636E11186CE15CBEBA28D75310EF2F6E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_55EF71B8FA4F5BC495713DAAFAD6BD1A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementGeographicalAxis_636E11186CE15CBEBA28D75310EF2F6E" xlink:to="loc_us-gaap_SegmentGeographicalDomain_55EF71B8FA4F5BC495713DAAFAD6BD1A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_US" xlink:label="loc_country_US_974CDA4472955D7299526F1196F2A021" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentGeographicalDomain_55EF71B8FA4F5BC495713DAAFAD6BD1A" xlink:to="loc_country_US_974CDA4472955D7299526F1196F2A021" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NonUsMember" xlink:label="loc_us-gaap_NonUsMember_1210195A66B656CD9997E2C7C5214315" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentGeographicalDomain_55EF71B8FA4F5BC495713DAAFAD6BD1A" xlink:to="loc_us-gaap_NonUsMember_1210195A66B656CD9997E2C7C5214315" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems" xlink:label="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_AE72FE1DD21C515980C0ABB05E9AA212" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_96F1351AF9EB5204A13F99BC8826F9AF" xlink:to="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_AE72FE1DD21C515980C0ABB05E9AA212" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_6FBE73FF208850E8B935C58AF5EC8FBD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_AE72FE1DD21C515980C0ABB05E9AA212" xlink:to="loc_us-gaap_Revenues_6FBE73FF208850E8B935C58AF5EC8FBD" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/SegmentAndGeographicInformationReconciliationOfSegmentProfitLossDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_993DFF5DB9E367F1B84334859330BB09" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_6036743F0A5C554F180F348593308BD9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_993DFF5DB9E367F1B84334859330BB09" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_6036743F0A5C554F180F348593308BD9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_73BEE66868D3E5A05395348593307C08" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_6036743F0A5C554F180F348593308BD9" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_73BEE66868D3E5A05395348593307C08" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_D8029BFFA9B9652ECCB03485933072DA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_73BEE66868D3E5A05395348593307C08" xlink:to="loc_us-gaap_SegmentDomain_D8029BFFA9B9652ECCB03485933072DA" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_CPaaSMember" xlink:label="loc_band_CPaaSMember_1EE3DD8B7A7B1158601334859330803B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_D8029BFFA9B9652ECCB03485933072DA" xlink:to="loc_band_CPaaSMember_1EE3DD8B7A7B1158601334859330803B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllOtherSegmentsMember" xlink:label="loc_us-gaap_AllOtherSegmentsMember_E5B8D837067BA71C117A34859330D747" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_D8029BFFA9B9652ECCB03485933072DA" xlink:to="loc_us-gaap_AllOtherSegmentsMember_E5B8D837067BA71C117A34859330D747" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_AA25855CBD2283152544348593304884" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_6036743F0A5C554F180F348593308BD9" xlink:to="loc_us-gaap_SegmentReportingInformationLineItems_AA25855CBD2283152544348593304884" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="loc_us-gaap_NumberOfReportableSegments_C0E9693BA77D06AA84BF34859330D148" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_AA25855CBD2283152544348593304884" xlink:to="loc_us-gaap_NumberOfReportableSegments_C0E9693BA77D06AA84BF34859330D148" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_532A24A25FB0E8BF499C34859331A18C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_AA25855CBD2283152544348593304884" xlink:to="loc_us-gaap_Revenues_532A24A25FB0E8BF499C34859331A18C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfRevenue" xlink:label="loc_us-gaap_CostOfRevenue_BDBB37C001281A761311348593317C87" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_AA25855CBD2283152544348593304884" xlink:to="loc_us-gaap_CostOfRevenue_BDBB37C001281A761311348593317C87" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_C3B6BB4EE2AE69D1A7BD34859331CBB7" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_AA25855CBD2283152544348593304884" xlink:to="loc_us-gaap_GrossProfit_C3B6BB4EE2AE69D1A7BD34859331CBB7" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/SegmentAndGeographicInformationTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_F31E4AB1A2415E1A97D661DAD145D556" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_A925109EFEF451328A89F139F5017FA4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_F31E4AB1A2415E1A97D661DAD145D556" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_A925109EFEF451328A89F139F5017FA4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock" xlink:label="loc_us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock_F245C3EBCBFD52B28437FF3A23D4F004" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_F31E4AB1A2415E1A97D661DAD145D556" xlink:to="loc_us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock_F245C3EBCBFD52B28437FF3A23D4F004" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/StockBasedCompensation" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0CEEF658831F5D93AC9593F913C21313" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_4C42DA7B534D5808A54C664BA5CBB207" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0CEEF658831F5D93AC9593F913C21313" xlink:to="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_4C42DA7B534D5808A54C664BA5CBB207" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/StockBasedCompensationAllocatedStockBasedCompensationExpenseDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_B6D1B675DF799C6572D838C11E5475CD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_CBC3FC79700ABA327CB538C11E547CA1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_B6D1B675DF799C6572D838C11E5475CD" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_CBC3FC79700ABA327CB538C11E547CA1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_C6D1D8BC9A658588012338C11E554FDE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_CBC3FC79700ABA327CB538C11E547CA1" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_C6D1D8BC9A658588012338C11E554FDE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_FD23F51FC13C71A531B938C11E55E011" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_C6D1D8BC9A658588012338C11E554FDE" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_FD23F51FC13C71A531B938C11E55E011" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfSalesMember" xlink:label="loc_us-gaap_CostOfSalesMember_9FFFC5F564759B661DC838C11E55BE05" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_FD23F51FC13C71A531B938C11E55E011" xlink:to="loc_us-gaap_CostOfSalesMember_9FFFC5F564759B661DC838C11E55BE05" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ResearchAndDevelopmentExpenseMember" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_77451F29D24536E48FD438C11E556CAA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_FD23F51FC13C71A531B938C11E55E011" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_77451F29D24536E48FD438C11E556CAA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SellingAndMarketingExpenseMember" xlink:label="loc_us-gaap_SellingAndMarketingExpenseMember_FF73E73F6F600021792438C11E55DC5C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_FD23F51FC13C71A531B938C11E55E011" xlink:to="loc_us-gaap_SellingAndMarketingExpenseMember_FF73E73F6F600021792438C11E55DC5C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseMember" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember_BE519E912B4677B86FA738C11E55E8BC" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_FD23F51FC13C71A531B938C11E55E011" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpenseMember_BE519E912B4677B86FA738C11E55E8BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_E0EFDC6C87A89A41CFDE38C11E554363" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_CBC3FC79700ABA327CB538C11E547CA1" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_E0EFDC6C87A89A41CFDE38C11E554363" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_C2C9089CCD867ED01A8938C11E55815E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_E0EFDC6C87A89A41CFDE38C11E554363" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_C2C9089CCD867ED01A8938C11E55815E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_1D888639C16D6598463238C11E55DFF1" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_E0EFDC6C87A89A41CFDE38C11E554363" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_1D888639C16D6598463238C11E55DFF1" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/StockBasedCompensationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_4878285718CCFD9E2E9FBFBF378440B6" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7A9C27AE9DFDF41EBF31BFBF3784568A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_4878285718CCFD9E2E9FBFBF378440B6" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7A9C27AE9DFDF41EBF31BFBF3784568A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_3505B1194FAE545DB1DEBFBF3784D95D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7A9C27AE9DFDF41EBF31BFBF3784568A" xlink:to="loc_us-gaap_PlanNameAxis_3505B1194FAE545DB1DEBFBF3784D95D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_0DEFA5A38E60C39AD59FBFBF378558CD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameAxis_3505B1194FAE545DB1DEBFBF3784D95D" xlink:to="loc_us-gaap_PlanNameDomain_0DEFA5A38E60C39AD59FBFBF378558CD" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_A2010EquityCompensationPlanMember" xlink:label="loc_band_A2010EquityCompensationPlanMember_22D5E84C11499EDFE6B6BFBF3785FC46" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_0DEFA5A38E60C39AD59FBFBF378558CD" xlink:to="loc_band_A2010EquityCompensationPlanMember_22D5E84C11499EDFE6B6BFBF3785FC46" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_A2017EquityCompensationPlanMember" xlink:label="loc_band_A2017EquityCompensationPlanMember_470588978164B8C0C014BFBF37858659" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_0DEFA5A38E60C39AD59FBFBF378558CD" xlink:to="loc_band_A2017EquityCompensationPlanMember_470588978164B8C0C014BFBF37858659" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_E9A57A28D880ECEB0F53BFBF37856795" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7A9C27AE9DFDF41EBF31BFBF3784568A" xlink:to="loc_us-gaap_AwardTypeAxis_E9A57A28D880ECEB0F53BFBF37856795" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_C02D301CAB89F03146BBBFBF3785CEAE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_E9A57A28D880ECEB0F53BFBF37856795" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_C02D301CAB89F03146BBBFBF3785CEAE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_CECFA94917082853451BBFBF37858DAA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_C02D301CAB89F03146BBBFBF3785CEAE" xlink:to="loc_us-gaap_EmployeeStockOptionMember_CECFA94917082853451BBFBF37858DAA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B837A237DDA464D91016BFBF3785CFB3" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7A9C27AE9DFDF41EBF31BFBF3784568A" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B837A237DDA464D91016BFBF3785CFB3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_D39D37789FE45515B36BBFBF37856121" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B837A237DDA464D91016BFBF3785CFB3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_D39D37789FE45515B36BBFBF37856121" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance" xlink:label="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_9E56E0817BE246354679BFBF37852030" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B837A237DDA464D91016BFBF3785CFB3" xlink:to="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_9E56E0817BE246354679BFBF37852030" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_E40C5828CE203E279AD3BFBF3785DEF0" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B837A237DDA464D91016BFBF3785CFB3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_E40C5828CE203E279AD3BFBF3785DEF0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_B69597E25E7E2183F7C0BFBF3785959F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B837A237DDA464D91016BFBF3785CFB3" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_B69597E25E7E2183F7C0BFBF3785959F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_2BC55B2DA0B1182B5E10BFBF37854614" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B837A237DDA464D91016BFBF3785CFB3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_2BC55B2DA0B1182B5E10BFBF37854614" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1_140D2CFB93EBA616BF09BFBF37850D45" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B837A237DDA464D91016BFBF3785CFB3" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1_140D2CFB93EBA616BF09BFBF37850D45" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_8A82481332EACBFEF2F8BFBF378570F9" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B837A237DDA464D91016BFBF3785CFB3" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_8A82481332EACBFEF2F8BFBF378570F9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_8286A69D554CB8E3996EBFBF3785B71C" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B837A237DDA464D91016BFBF3785CFB3" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_8286A69D554CB8E3996EBFBF3785B71C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/StockBasedCompensationFairValueOfOptionsGrantedUsingBlackScholesPricingModelDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0712414CACE0B4FDD62038C11E42E5A8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_FB5925C40FEE60E66AC338C11E423440" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0712414CACE0B4FDD62038C11E42E5A8" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_FB5925C40FEE60E66AC338C11E423440" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_928BD7949B0452D13E2338C11E42FAFD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_FB5925C40FEE60E66AC338C11E423440" xlink:to="loc_us-gaap_AwardTypeAxis_928BD7949B0452D13E2338C11E42FAFD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_9E56BF9E9FD48F79E94438C11E424EF7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_928BD7949B0452D13E2338C11E42FAFD" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_9E56BF9E9FD48F79E94438C11E424EF7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_33650EB80AE395885BB138C11E429707" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_9E56BF9E9FD48F79E94438C11E424EF7" xlink:to="loc_us-gaap_EmployeeStockOptionMember_33650EB80AE395885BB138C11E429707" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_4B2885AD739F47D6CA2538C11E42C300" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_FB5925C40FEE60E66AC338C11E423440" xlink:to="loc_us-gaap_RangeAxis_4B2885AD739F47D6CA2538C11E42C300" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_38615C1766163B141AD038C11E421764" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_4B2885AD739F47D6CA2538C11E42C300" xlink:to="loc_us-gaap_RangeMember_38615C1766163B141AD038C11E421764" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_ADB637652F46A2A88EED38C11E425ECC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_38615C1766163B141AD038C11E421764" xlink:to="loc_us-gaap_MinimumMember_ADB637652F46A2A88EED38C11E425ECC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_A772294B26AD1B294DAD38C11E43A16C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_38615C1766163B141AD038C11E421764" xlink:to="loc_us-gaap_MaximumMember_A772294B26AD1B294DAD38C11E43A16C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4CC44BA11A7B144EBF4538C11E43D271" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_FB5925C40FEE60E66AC338C11E423440" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4CC44BA11A7B144EBF4538C11E43D271" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_233DB54AA607287240DA38C11E430825" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4CC44BA11A7B144EBF4538C11E43D271" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_233DB54AA607287240DA38C11E430825" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_7818514FD66854D393A538C11E49C5AA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4CC44BA11A7B144EBF4538C11E43D271" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_7818514FD66854D393A538C11E49C5AA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum_01778CE17ADF871AE4E338C11E4C8CDD" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4CC44BA11A7B144EBF4538C11E43D271" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum_01778CE17ADF871AE4E338C11E4C8CDD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_5D91CB0CB977306F7CB738C11E4D8110" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4CC44BA11A7B144EBF4538C11E43D271" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_5D91CB0CB977306F7CB738C11E4D8110" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_468F7C6CDF7D0AD6A07638C11E4DFB81" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4CC44BA11A7B144EBF4538C11E43D271" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_468F7C6CDF7D0AD6A07638C11E4DFB81" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_SharebasedCompensationArrangementbySharebasedPaymentAwardFairValueAssumptionsFairValueRange" xlink:label="loc_band_SharebasedCompensationArrangementbySharebasedPaymentAwardFairValueAssumptionsFairValueRange_69B89BB8855996DE548738C11E4D35F9" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4CC44BA11A7B144EBF4538C11E43D271" xlink:to="loc_band_SharebasedCompensationArrangementbySharebasedPaymentAwardFairValueAssumptionsFairValueRange_69B89BB8855996DE548738C11E4D35F9" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/StockBasedCompensationStockOptionActivityDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_A45FF342DA3752BBB383504E9392C4C9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_1FE544B985E45D9189D2A0C91E1D774A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_A45FF342DA3752BBB383504E9392C4C9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_1FE544B985E45D9189D2A0C91E1D774A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_13CDED9D9B76593FB467C03DA9344A4B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_1FE544B985E45D9189D2A0C91E1D774A" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_13CDED9D9B76593FB467C03DA9344A4B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_66B183E97AF15D17A219C73A17C70973" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_1FE544B985E45D9189D2A0C91E1D774A" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_66B183E97AF15D17A219C73A17C70973" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_8D722C03D54458B3BA4B424C3346458B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_1FE544B985E45D9189D2A0C91E1D774A" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_8D722C03D54458B3BA4B424C3346458B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_51C4692F2FE152BFA9DE1B27D7EA1F15" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_1FE544B985E45D9189D2A0C91E1D774A" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_51C4692F2FE152BFA9DE1B27D7EA1F15" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_71413510014158849B60D6CD131C15E8" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_1FE544B985E45D9189D2A0C91E1D774A" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_71413510014158849B60D6CD131C15E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_58EBAD4EB1D352C2B0637217E5549DC7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_A45FF342DA3752BBB383504E9392C4C9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_58EBAD4EB1D352C2B0637217E5549DC7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_7B205AD58B7B5051B6D4540E5015EDDA" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_A45FF342DA3752BBB383504E9392C4C9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_7B205AD58B7B5051B6D4540E5015EDDA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_3F415FCB48B05815A3CB83477DBF4C01" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_A45FF342DA3752BBB383504E9392C4C9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_3F415FCB48B05815A3CB83477DBF4C01" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_1DE96D6F644C560E9880FD7C5FDEBCA2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_3F415FCB48B05815A3CB83477DBF4C01" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_1DE96D6F644C560E9880FD7C5FDEBCA2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_DEADE703A54C58B1B9AA5CDFA366F868" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_3F415FCB48B05815A3CB83477DBF4C01" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_DEADE703A54C58B1B9AA5CDFA366F868" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_CDD778EDBADC5930971C38266A44DA0B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_3F415FCB48B05815A3CB83477DBF4C01" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_CDD778EDBADC5930971C38266A44DA0B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_3A6050DD8E9A548C8E54885AD6EE789A" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_3F415FCB48B05815A3CB83477DBF4C01" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_3A6050DD8E9A548C8E54885AD6EE789A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_FE2DF51F2E7D55E5BDAE6EF798B43050" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_3F415FCB48B05815A3CB83477DBF4C01" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_FE2DF51F2E7D55E5BDAE6EF798B43050" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice_8B81F8FD2C8A501BA47B341DC4A6E18F" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_A45FF342DA3752BBB383504E9392C4C9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice_8B81F8FD2C8A501BA47B341DC4A6E18F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice_591AB9E1CF3650C0A4884752E6721FDB" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_A45FF342DA3752BBB383504E9392C4C9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice_591AB9E1CF3650C0A4884752E6721FDB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_773312AA24825587A12B603ACC224CB0" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_A45FF342DA3752BBB383504E9392C4C9" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_773312AA24825587A12B603ACC224CB0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_1AB92F9A22F856BA9AAE81120C413094" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_A45FF342DA3752BBB383504E9392C4C9" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_1AB92F9A22F856BA9AAE81120C413094" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1_3C568C68D8A358A1AEFEE481B391AC96" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_A45FF342DA3752BBB383504E9392C4C9" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1_3C568C68D8A358A1AEFEE481B391AC96" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_6FF0B883B7C956E5B4FCBE133BCA3EC9" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_A45FF342DA3752BBB383504E9392C4C9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_6FF0B883B7C956E5B4FCBE133BCA3EC9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_0B2CC7A2319B579D9FFE01719D4ACABE" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_A45FF342DA3752BBB383504E9392C4C9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_0B2CC7A2319B579D9FFE01719D4ACABE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue_C600C3C41FDF5D99A54C4688DF427C0E" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_A45FF342DA3752BBB383504E9392C4C9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue_C600C3C41FDF5D99A54C4688DF427C0E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue_9AD5B8A6F7A55F03A846F381917B3274" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_A45FF342DA3752BBB383504E9392C4C9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue_9AD5B8A6F7A55F03A846F381917B3274" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/StockBasedCompensationTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_408F23DBF17B3E2E9EFC38C11E2EA0FE" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_EE467D86E2491D2AF95238C11E2ED9BE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_408F23DBF17B3E2E9EFC38C11E2EA0FE" xlink:to="loc_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_EE467D86E2491D2AF95238C11E2ED9BE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_60B387ACCD84A1B6210C38C11E2F9ADF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_408F23DBF17B3E2E9EFC38C11E2EA0FE" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_60B387ACCD84A1B6210C38C11E2F9ADF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_1D8D33A63A34B352CA1438C11E2F21A4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_408F23DBF17B3E2E9EFC38C11E2EA0FE" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_1D8D33A63A34B352CA1438C11E2F21A4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/SubsequentEvents" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaap_SubsequentEventsAbstract_F8B8CCC2340B551E81CA71C7B5F8B516" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="loc_us-gaap_SubsequentEventsTextBlock_213FCA9F6D0C5FF0BCCD84AE8F71E35C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventsAbstract_F8B8CCC2340B551E81CA71C7B5F8B516" xlink:to="loc_us-gaap_SubsequentEventsTextBlock_213FCA9F6D0C5FF0BCCD84AE8F71E35C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/SubsequentEventsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaap_SubsequentEventsAbstract_1499B6FA5B3481A44A677C51756492ED" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTable" xlink:label="loc_us-gaap_SubsequentEventTable_AE175F2174B87EB880DD7C517564DEEC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventsAbstract_1499B6FA5B3481A44A677C51756492ED" xlink:to="loc_us-gaap_SubsequentEventTable_AE175F2174B87EB880DD7C517564DEEC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_19932AC5D68A4DF2BB4D7C517564EA6F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTable_AE175F2174B87EB880DD7C517564DEEC" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_19932AC5D68A4DF2BB4D7C517564EA6F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_939D63CCCCA4B97291317C517564049D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_19932AC5D68A4DF2BB4D7C517564EA6F" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_939D63CCCCA4B97291317C517564049D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_D1DA99F05F0C053256B17C5175646C4A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_939D63CCCCA4B97291317C517564049D" xlink:to="loc_us-gaap_SubsequentEventMember_D1DA99F05F0C053256B17C5175646C4A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventLineItems" xlink:label="loc_us-gaap_SubsequentEventLineItems_C09F3E592BC7D10628EC7C517564AAED" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTable_AE175F2174B87EB880DD7C517564DEEC" xlink:to="loc_us-gaap_SubsequentEventLineItems_C09F3E592BC7D10628EC7C517564AAED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract" xlink:label="loc_us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract_FFE6BE88F8978BACAEF27C517564400E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventLineItems_C09F3E592BC7D10628EC7C517564AAED" xlink:to="loc_us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract_FFE6BE88F8978BACAEF27C517564400E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AreaOfRealEstateProperty" xlink:label="loc_us-gaap_AreaOfRealEstateProperty_101D7D915FB8FCC1CCC37C51756A3E4D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventLineItems_C09F3E592BC7D10628EC7C517564AAED" xlink:to="loc_us-gaap_AreaOfRealEstateProperty_101D7D915FB8FCC1CCC37C51756A3E4D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LitigationSettlementAmountAwardedFromOtherParty" xlink:label="loc_us-gaap_LitigationSettlementAmountAwardedFromOtherParty_DD234A47BFDAE94AE6D77C51756A8801" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventLineItems_C09F3E592BC7D10628EC7C517564AAED" xlink:to="loc_us-gaap_LitigationSettlementAmountAwardedFromOtherParty_DD234A47BFDAE94AE6D77C51756A8801" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/SubsequentEventsFutureExpectedMinimumLeasePaymentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaap_SubsequentEventsAbstract_93D00708DF88DA5173E5AFDC2D99C520" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTable" xlink:label="loc_us-gaap_SubsequentEventTable_38B3AC12DF6987C22582AFDC2D9BCFEC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventsAbstract_93D00708DF88DA5173E5AFDC2D99C520" xlink:to="loc_us-gaap_SubsequentEventTable_38B3AC12DF6987C22582AFDC2D9BCFEC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_3E7ACC2371FAF78FF619AFDC2D9CAB2F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTable_38B3AC12DF6987C22582AFDC2D9BCFEC" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_3E7ACC2371FAF78FF619AFDC2D9CAB2F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_C2271A78F8C8EEF9F0CAAFDC2D9CA56E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_3E7ACC2371FAF78FF619AFDC2D9CAB2F" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_C2271A78F8C8EEF9F0CAAFDC2D9CA56E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_22B259ECFDE7FE42FF1DAFDC2D9C6C98" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_C2271A78F8C8EEF9F0CAAFDC2D9CA56E" xlink:to="loc_us-gaap_SubsequentEventMember_22B259ECFDE7FE42FF1DAFDC2D9C6C98" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventLineItems" xlink:label="loc_us-gaap_SubsequentEventLineItems_BBD872B765256DD2E936AFDC2D9D5EE3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTable_38B3AC12DF6987C22582AFDC2D9BCFEC" xlink:to="loc_us-gaap_SubsequentEventLineItems_BBD872B765256DD2E936AFDC2D9D5EE3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_857C814F5C9971447CA3AFDC2D9DF46C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventLineItems_BBD872B765256DD2E936AFDC2D9D5EE3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_857C814F5C9971447CA3AFDC2D9DF46C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_C1484312E4F4D135CB5BAFDC2D9DEE1D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventLineItems_BBD872B765256DD2E936AFDC2D9D5EE3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_C1484312E4F4D135CB5BAFDC2D9DEE1D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_F0B7FC20B3CC0A4C7030AFDC2D9D4AC1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventLineItems_BBD872B765256DD2E936AFDC2D9D5EE3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_F0B7FC20B3CC0A4C7030AFDC2D9D4AC1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_3C008D61B26BE8E49ACFAFDC2D9D9EA5" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventLineItems_BBD872B765256DD2E936AFDC2D9D5EE3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_3C008D61B26BE8E49ACFAFDC2D9D9EA5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_6CEB0CE495589FD58F22AFDC2D9D1362" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventLineItems_BBD872B765256DD2E936AFDC2D9D5EE3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_6CEB0CE495589FD58F22AFDC2D9D1362" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_7C70AC24ED114F92FFCDAFDC2D9E5E2E" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventLineItems_BBD872B765256DD2E936AFDC2D9D5EE3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_7C70AC24ED114F92FFCDAFDC2D9E5E2E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/SubsequentEventsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaap_SubsequentEventsAbstract_4E94E82DBEE87C79A3454456DC1BE652" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ContractualObligationFiscalYearMaturityScheduleTableTextBlock" xlink:label="loc_us-gaap_ContractualObligationFiscalYearMaturityScheduleTableTextBlock_7F1D5180C4BCBB7398F14456F277A958" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventsAbstract_4E94E82DBEE87C79A3454456DC1BE652" xlink:to="loc_us-gaap_ContractualObligationFiscalYearMaturityScheduleTableTextBlock_7F1D5180C4BCBB7398F14456F277A958" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/SummaryOfSignificantAccountingPolicies" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_DB629CEB675355D8BC925A85A89AF0B6" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_SignificantAccountingPoliciesTextBlock_C50CAC48203557F6A832F7CEB4A586E5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_DB629CEB675355D8BC925A85A89AF0B6" xlink:to="loc_us-gaap_SignificantAccountingPoliciesTextBlock_C50CAC48203557F6A832F7CEB4A586E5" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/SummaryOfSignificantAccountingPoliciesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_BC681AA0722C46812AB2CE035F57E869" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C548C9B7BB234B7D1B9CCE035F57CE67" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_BC681AA0722C46812AB2CE035F57E869" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C548C9B7BB234B7D1B9CCE035F57CE67" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MajorCustomersAxis" xlink:label="loc_us-gaap_MajorCustomersAxis_C75BA183162E1516E816CE0AEBCA640B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C548C9B7BB234B7D1B9CCE035F57CE67" xlink:to="loc_us-gaap_MajorCustomersAxis_C75BA183162E1516E816CE0AEBCA640B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NameOfMajorCustomerDomain" xlink:label="loc_us-gaap_NameOfMajorCustomerDomain_3A1807BAFD9D59B3AA2BCE0BEC24621A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MajorCustomersAxis_C75BA183162E1516E816CE0AEBCA640B" xlink:to="loc_us-gaap_NameOfMajorCustomerDomain_3A1807BAFD9D59B3AA2BCE0BEC24621A" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_CustomerOneMember" xlink:label="loc_band_CustomerOneMember_825E1EE59A2A5810FE0BCE0B5E5DF8A0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NameOfMajorCustomerDomain_3A1807BAFD9D59B3AA2BCE0BEC24621A" xlink:to="loc_band_CustomerOneMember_825E1EE59A2A5810FE0BCE0B5E5DF8A0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_A7A1F44267379AF01292CE035F5781C8" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C548C9B7BB234B7D1B9CCE035F57CE67" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_A7A1F44267379AF01292CE035F5781C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_0C5E6BFEDB77CE508BB2CE035F5744DF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_A7A1F44267379AF01292CE035F5781C8" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_0C5E6BFEDB77CE508BB2CE035F5744DF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsReceivableMember" xlink:label="loc_us-gaap_AccountsReceivableMember_FA3313CF94E255A975E7CE035F5735B6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_0C5E6BFEDB77CE508BB2CE035F5744DF" xlink:to="loc_us-gaap_AccountsReceivableMember_FA3313CF94E255A975E7CE035F5735B6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_69EF7339715918BAB809CE035F575D15" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C548C9B7BB234B7D1B9CCE035F57CE67" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_69EF7339715918BAB809CE035F575D15" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_E73690EBA965982B8D75CE035F57D1F4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_69EF7339715918BAB809CE035F575D15" xlink:to="loc_us-gaap_EquityComponentDomain_E73690EBA965982B8D75CE035F57D1F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_9D83994696FA9B26381BCE035F574F1B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_E73690EBA965982B8D75CE035F57D1F4" xlink:to="loc_us-gaap_RetainedEarningsMember_9D83994696FA9B26381BCE035F574F1B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsForNewAccountingPronouncementsAxis" xlink:label="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_145DE2AA7F65C9D52B81CE035F57E45C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C548C9B7BB234B7D1B9CCE035F57CE67" xlink:to="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_145DE2AA7F65C9D52B81CE035F57E45C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TypeOfAdoptionMember" xlink:label="loc_us-gaap_TypeOfAdoptionMember_2CD3340A8611B16AFBDFCE035F57A6FA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_145DE2AA7F65C9D52B81CE035F57E45C" xlink:to="loc_us-gaap_TypeOfAdoptionMember_2CD3340A8611B16AFBDFCE035F57A6FA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingStandardsUpdate201609Member" xlink:label="loc_us-gaap_AccountingStandardsUpdate201609Member_34F0BB84747BEF2AC093CE035F57423A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfAdoptionMember_2CD3340A8611B16AFBDFCE035F57A6FA" xlink:to="loc_us-gaap_AccountingStandardsUpdate201609Member_34F0BB84747BEF2AC093CE035F57423A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_E3DFBBFE31ACF94FA73ECE035F57B8F2" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C548C9B7BB234B7D1B9CCE035F57CE67" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_E3DFBBFE31ACF94FA73ECE035F57B8F2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_593EAAB8DFBCFC2E43D1CE035F571FEC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_E3DFBBFE31ACF94FA73ECE035F57B8F2" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_593EAAB8DFBCFC2E43D1CE035F571FEC" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_ComputerandOfficeEquipmentMember" xlink:label="loc_band_ComputerandOfficeEquipmentMember_A4131E78124A164CA915CE035F572655" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_593EAAB8DFBCFC2E43D1CE035F571FEC" xlink:to="loc_band_ComputerandOfficeEquipmentMember_A4131E78124A164CA915CE035F572655" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SoftwareDevelopmentMember" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_2DBBD0F794B746CABF67CE035F574D2C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_593EAAB8DFBCFC2E43D1CE035F571FEC" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_2DBBD0F794B746CABF67CE035F574D2C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_EC7A04B5BE9F08116319CE035F57A245" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_593EAAB8DFBCFC2E43D1CE035F571FEC" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_EC7A04B5BE9F08116319CE035F57A245" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_3AA1A0C3924FCBF52F2CCE035F57C66D" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C548C9B7BB234B7D1B9CCE035F57CE67" xlink:to="loc_us-gaap_RangeAxis_3AA1A0C3924FCBF52F2CCE035F57C66D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_A9D658B289CE82727BFECE035F57BA1A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_3AA1A0C3924FCBF52F2CCE035F57C66D" xlink:to="loc_us-gaap_RangeMember_A9D658B289CE82727BFECE035F57BA1A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_F72E9BA933564AF383DACE035F579180" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_A9D658B289CE82727BFECE035F57BA1A" xlink:to="loc_us-gaap_MinimumMember_F72E9BA933564AF383DACE035F579180" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_04F3A8052AA3B1F6BEDECE035F578D78" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_A9D658B289CE82727BFECE035F57BA1A" xlink:to="loc_us-gaap_MaximumMember_04F3A8052AA3B1F6BEDECE035F578D78" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BalanceSheetLocationAxis" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_E2F39CFECE75F931689FCE035F57B82C" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C548C9B7BB234B7D1B9CCE035F57CE67" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_E2F39CFECE75F931689FCE035F57B82C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_878DC7651A446FDB97FBCE035F574469" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_E2F39CFECE75F931689FCE035F57B82C" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_878DC7651A446FDB97FBCE035F574469" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember" xlink:label="loc_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_729B9894A42B10200116CE035F57781D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_878DC7651A446FDB97FBCE035F574469" xlink:to="loc_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_729B9894A42B10200116CE035F57781D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtMember" xlink:label="loc_us-gaap_LongTermDebtMember_A347DD30B843DF6104E1CE035F575363" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_878DC7651A446FDB97FBCE035F574469" xlink:to="loc_us-gaap_LongTermDebtMember_A347DD30B843DF6104E1CE035F575363" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C548C9B7BB234B7D1B9CCE035F57CE67" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_BA151B200CB29A92F8EBCE035F57F621" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_BA151B200CB29A92F8EBCE035F57F621" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_CustomerArrangementTerm" xlink:label="loc_band_CustomerArrangementTerm_EF1C3DAC73B94006C855CE035F57749E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_band_CustomerArrangementTerm_EF1C3DAC73B94006C855CE035F57749E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedCash" xlink:label="loc_us-gaap_RestrictedCash_69DCAD240BAC8BEEDD47CE035F577CF6" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_us-gaap_RestrictedCash_69DCAD240BAC8BEEDD47CE035F577CF6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_F8163577338A6CF5B14CCE035F5773AA" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_F8163577338A6CF5B14CCE035F5773AA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnbilledReceivablesCurrent" xlink:label="loc_us-gaap_UnbilledReceivablesCurrent_D1302A1F3C7D9AFE1633CE035F5716CD" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_us-gaap_UnbilledReceivablesCurrent_D1302A1F3C7D9AFE1633CE035F5716CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_C09F6F3EB6DA138F6334CE035F5781CF" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_C09F6F3EB6DA138F6334CE035F5781CF" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_DeferredChargesAmortizationPeriod" xlink:label="loc_band_DeferredChargesAmortizationPeriod_C14D8F17DA8F9A8D9242CE035F57D620" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_band_DeferredChargesAmortizationPeriod_C14D8F17DA8F9A8D9242CE035F57D620" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentTerm" xlink:label="loc_us-gaap_DebtInstrumentTerm_4CC3EDB08D2741D11FCFCE035F57BA5C" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_us-gaap_DebtInstrumentTerm_4CC3EDB08D2741D11FCFCE035F57BA5C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnamortizedDebtIssuanceExpense" xlink:label="loc_us-gaap_UnamortizedDebtIssuanceExpense_D2016E8214735E22B9B7CE035F57057F" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_us-gaap_UnamortizedDebtIssuanceExpense_D2016E8214735E22B9B7CE035F57057F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_5AF1C7F025C8BB004F65CE035F57D2E1" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_5AF1C7F025C8BB004F65CE035F57D2E1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfReportingUnits" xlink:label="loc_us-gaap_NumberOfReportingUnits_C1961F3E9C8B360C50EDCE035F57275E" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_us-gaap_NumberOfReportingUnits_C1961F3E9C8B360C50EDCE035F57275E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_61FC3BC2B29A9D74C0FFCE035F57DC2B" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_us-gaap_Goodwill_61FC3BC2B29A9D74C0FFCE035F57DC2B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillImpairmentLoss" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_5A71241DF431E3BF45DCCE035F5759E3" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_5A71241DF431E3BF45DCCE035F5759E3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1_09D918E6D97A7BBC75F1CE035F5726E1" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1_09D918E6D97A7BBC75F1CE035F5726E1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdvertisingExpense" xlink:label="loc_us-gaap_AdvertisingExpense_590D045E2D4CA19B80EECE035F578A41" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_us-gaap_AdvertisingExpense_590D045E2D4CA19B80EECE035F578A41" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfOperatingSegments" xlink:label="loc_us-gaap_NumberOfOperatingSegments_039D3253C866734311BACE035F57007D" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_us-gaap_NumberOfOperatingSegments_039D3253C866734311BACE035F57007D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption" xlink:label="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_ABBF3BF94575F555B715CE035F5772BC" xlink:type="locator" />
    <link:presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BC7A9B1B462EBA07CACCCE035F57CC32" xlink:to="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_ABBF3BF94575F555B715CE035F5772BC" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:label="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_9C54CF4B96CCBF52614CCE035F674379" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_9C54CF4B96CCBF52614CCE035F674379" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PriorPeriodReclassificationAdjustmentDescription" xlink:label="loc_us-gaap_PriorPeriodReclassificationAdjustmentDescription_F58992A9A796B0D3AD1FCE035F670364" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_PriorPeriodReclassificationAdjustmentDescription_F58992A9A796B0D3AD1FCE035F670364" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock" xlink:label="loc_us-gaap_ConsolidationPolicyTextBlock_16CA3A2D4AB436CD5690CE035F67CFB7" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_ConsolidationPolicyTextBlock_16CA3A2D4AB436CD5690CE035F67CFB7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="loc_us-gaap_UseOfEstimates_0D782F84342ECB1BE140CE035F67390E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_UseOfEstimates_0D782F84342ECB1BE140CE035F67390E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevenueRecognitionPolicyTextBlock" xlink:label="loc_us-gaap_RevenueRecognitionPolicyTextBlock_D105D93B168C807A6187CE035F67D3AA" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_RevenueRecognitionPolicyTextBlock_D105D93B168C807A6187CE035F67D3AA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfSalesPolicyTextBlock" xlink:label="loc_us-gaap_CostOfSalesPolicyTextBlock_2A577DB881D06B6C2B68CE035F6765B0" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_CostOfSalesPolicyTextBlock_2A577DB881D06B6C2B68CE035F6765B0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpensePolicy_67157CFAB95B1B8ADEF7CE035F672FFA" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpensePolicy_67157CFAB95B1B8ADEF7CE035F672FFA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpensesPolicyTextBlock" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpensesPolicyTextBlock_E90065F2289D24771654CE035F67A4D4" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpensesPolicyTextBlock_E90065F2289D24771654CE035F67A4D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xlink:label="loc_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_C2F033CD5ECB6DB59B4ECE035F67F0F4" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_C2F033CD5ECB6DB59B4ECE035F67F0F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy" xlink:label="loc_us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy_A552E1874E483B6EEB0ACE035F67F61F" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy_A552E1874E483B6EEB0ACE035F67F61F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskCreditRisk" xlink:label="loc_us-gaap_ConcentrationRiskCreditRisk_0C7E424168333B6D5B9ACE035F67D375" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_ConcentrationRiskCreditRisk_0C7E424168333B6D5B9ACE035F67D375" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_563C48383FA825BB136CCE035F67E9CE" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_563C48383FA825BB136CCE035F67E9CE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredChargesPolicyTextBlock" xlink:label="loc_us-gaap_DeferredChargesPolicyTextBlock_4F2464FDBE4AFEA2826BCE035F67EF0E" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_DeferredChargesPolicyTextBlock_4F2464FDBE4AFEA2826BCE035F67EF0E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InternalUseSoftwarePolicy" xlink:label="loc_us-gaap_InternalUseSoftwarePolicy_CDBF32104DC044014343CE035F67E2FD" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_InternalUseSoftwarePolicy_CDBF32104DC044014343CE035F67E2FD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtPolicyTextBlock" xlink:label="loc_us-gaap_DebtPolicyTextBlock_6BC9FD1A86F216D6F697CE035F67E652" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_DebtPolicyTextBlock_6BC9FD1A86F216D6F697CE035F67E652" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_6BD699153005688748A5CE035F67BAE3" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_6BD699153005688748A5CE035F67BAE3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock" xlink:label="loc_us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock_F992D93304EB8D40A4E6CE035F67EF3C" xlink:type="locator" />
    <link:presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock_F992D93304EB8D40A4E6CE035F67EF3C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdvertisingCostsPolicyTextBlock" xlink:label="loc_us-gaap_AdvertisingCostsPolicyTextBlock_3158CC55BDCA37342DE8CE035F67DA1E" xlink:type="locator" />
    <link:presentationArc order="18" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_AdvertisingCostsPolicyTextBlock_3158CC55BDCA37342DE8CE035F67DA1E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommissionsPolicy" xlink:label="loc_us-gaap_CommissionsPolicy_9C81912D151C0065FC56CE035F674086" xlink:type="locator" />
    <link:presentationArc order="19" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_CommissionsPolicy_9C81912D151C0065FC56CE035F674086" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:label="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_CCBE1C65BBE2DF49F434CE035F6795D9" xlink:type="locator" />
    <link:presentationArc order="20" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_CCBE1C65BBE2DF49F434CE035F6795D9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="loc_us-gaap_IncomeTaxPolicyTextBlock_92EA16E6B0BC31BC6F1DCE035F675223" xlink:type="locator" />
    <link:presentationArc order="21" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_IncomeTaxPolicyTextBlock_92EA16E6B0BC31BC6F1DCE035F675223" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:label="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock_4DBC3025559BAEA012F4CE035F67A8BF" xlink:type="locator" />
    <link:presentationArc order="22" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock_4DBC3025559BAEA012F4CE035F67A8BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerSharePolicyTextBlock" xlink:label="loc_us-gaap_EarningsPerSharePolicyTextBlock_B29EB988BF250F815753CE035F6714D7" xlink:type="locator" />
    <link:presentationArc order="23" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_EarningsPerSharePolicyTextBlock_B29EB988BF250F815753CE035F6714D7" xlink:type="arc" />
    <link:loc xlink:href="band-20171231.xsd#band_EmergingGrowthCompanyStatusPolicyPolicyTextBlock" xlink:label="loc_band_EmergingGrowthCompanyStatusPolicyPolicyTextBlock_1CCA078FD26C3BDC77F3CE5946699CD5" xlink:type="locator" />
    <link:presentationArc order="24" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_band_EmergingGrowthCompanyStatusPolicyPolicyTextBlock_1CCA078FD26C3BDC77F3CE5946699CD5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_5773F9E38B521C79FFF4CE035F670763" xlink:type="locator" />
    <link:presentationArc order="25" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_E82677DF1531B9E21C9FCE035F67E9E8" xlink:to="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_5773F9E38B521C79FFF4CE035F670763" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.bandwidth.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_8DAA265520277A39501C3384670E62EB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationDepletionAndAmortizationPolicyTextBlock" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortizationPolicyTextBlock_CEB59BED50E0DD78D41B3384670E5D56" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_8DAA265520277A39501C3384670E62EB" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortizationPolicyTextBlock_CEB59BED50E0DD78D41B3384670E5D56" xlink:type="arc" />
  </link:presentationLink>
</link:linkbase>
