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  <xs:element id="tmus_WholesaleAndOtherServiceRevenueMember" abstract="true" name="WholesaleAndOtherServiceRevenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_ProductEquipmentMember" abstract="true" name="ProductEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_IncreaseDecreaseinOperatingLeaseRightofUseAsset" abstract="false" name="IncreaseDecreaseinOperatingLeaseRightofUseAsset" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_ProceedsFromIssuanceOfLongTermDebtNet" abstract="false" name="ProceedsFromIssuanceOfLongTermDebtNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_SupplementalFinancialStatementElementsAbstract" abstract="true" name="SupplementalFinancialStatementElementsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="tmus_SignificantTransactionsDisclosureTextBlock" abstract="false" name="SignificantTransactionsDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="tmus_FinancingReceivableCreditQualityIndicatorsWriteOffsTableTextBlock" abstract="false" name="FinancingReceivableCreditQualityIndicatorsWriteOffsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="tmus_ScheduleofVariableInterestEntitiesEIPTableTextBlock" abstract="false" name="ScheduleofVariableInterestEntitiesEIPTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="tmus_ScheduleOfPretaxCrossCurrencySwapsTableTextBlock" abstract="false" name="ScheduleOfPretaxCrossCurrencySwapsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="tmus_KaEnaCorporationMember" abstract="true" name="KaEnaCorporationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_UScellularWirelessOperationsAcquisitionMember" abstract="true" name="UScellularWirelessOperationsAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_FarmersCellularTelephoneCompanyAcquisitionMember" abstract="true" name="FarmersCellularTelephoneCompanyAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_VistarMediaInc.Member" abstract="true" name="VistarMediaInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_BlisHoldcoLimitedMember" abstract="true" name="BlisHoldcoLimitedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_MergerAndUnitPurchaseAgreementMember" abstract="true" name="MergerAndUnitPurchaseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_MergerAndUnitPurchaseAgreementAmendmentNo.1Member" abstract="true" name="MergerAndUnitPurchaseAgreementAmendmentNo.1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_PurchaseAgreementMember" abstract="true" name="PurchaseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_BusinessAcquisitionPercentageOfPurchasePricePaidInCash" abstract="false" name="BusinessAcquisitionPercentageOfPurchasePricePaidInCash" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="tmus_BusinessAcquisitionPercentageOfPurchasePricePaidWithCommonShares" abstract="false" name="BusinessAcquisitionPercentageOfPurchasePricePaidWithCommonShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="tmus_BusinessCombinationAdditionalEarnoutPaymentToBePaidMaximum" abstract="false" name="BusinessCombinationAdditionalEarnoutPaymentToBePaidMaximum" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_BusinessCombinationPotentialEarnoutPayment" abstract="false" name="BusinessCombinationPotentialEarnoutPayment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_BusinessCombinationPotentialEarnoutPaymentForServices" abstract="false" name="BusinessCombinationPotentialEarnoutPaymentForServices" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_BusinessCombinationLiabilityPostAcquisitionServices" abstract="false" name="BusinessCombinationLiabilityPostAcquisitionServices" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_PaymentsforAssetAcquisitions" abstract="false" name="PaymentsforAssetAcquisitions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_AssetAcquisitionMaximumTransferredLiabilitiesIncurred" abstract="false" name="AssetAcquisitionMaximumTransferredLiabilitiesIncurred" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_NumberOfSeparateAssetPurchaseAgreements" abstract="false" name="NumberOfSeparateAssetPurchaseAgreements" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="tmus_NoncashOrPartNoncashAcquisitionDebtAssumedFairValue" abstract="false" name="NoncashOrPartNoncashAcquisitionDebtAssumedFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_BusinessCombinationConsiderationTransferredIncludingSettlementsOfPreexistingRelationships" abstract="false" name="BusinessCombinationConsiderationTransferredIncludingSettlementsOfPreexistingRelationships" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_BusinessCombinationAssetsAcquiredIncludingGoodwill" abstract="false" name="BusinessCombinationAssetsAcquiredIncludingGoodwill" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAsset" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherIntangibleAssetsNet" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherIntangibleAssetsNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableAndAccruedLiabilities" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableAndAccruedLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOperatingLeaseLiability" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOperatingLeaseLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="tmus_WrenHouseJointVentureMember" abstract="true" name="WrenHouseJointVentureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_OakHillJointVentureMember" abstract="true" name="OakHillJointVentureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_JointVentureLineItems" abstract="true" name="JointVentureLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="tmus_NumberOfCompaniesIncludedInJointVenture" abstract="false" name="NumberOfCompaniesIncludedInJointVenture" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="tmus_EquipmentInstallmentPlanReceivableMember" abstract="true" name="EquipmentInstallmentPlanReceivableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_NumberofPortfolioSegments" abstract="false" name="NumberofPortfolioSegments" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="tmus_NumberofCustomerClasses" abstract="false" name="NumberofCustomerClasses" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="tmus_FinancingReceivables1to30DaysPastDueMember" abstract="true" name="FinancingReceivables1to30DaysPastDueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_FinancingReceivables31to60DaysPastDueMember" abstract="true" name="FinancingReceivables31to60DaysPastDueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_FinancingReceivables61to90DaysPastDueMember" abstract="true" name="FinancingReceivables61to90DaysPastDueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_FinancingReceivableOriginatedMoreThanTwoYearsBeforeCurrentFiscalYear" abstract="false" name="FinancingReceivableOriginatedMoreThanTwoYearsBeforeCurrentFiscalYear" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_FinancingReceivableYearOneWriteOffsCurrentFiscalYear" abstract="false" name="FinancingReceivableYearOneWriteOffsCurrentFiscalYear" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_FinancingReceivableYearTwoWriteOffsFiscalYearBeforeCurrentFiscalYear" abstract="false" name="FinancingReceivableYearTwoWriteOffsFiscalYearBeforeCurrentFiscalYear" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_FinancingReceivableYearThreeWriteOffsTwoYearsBeforeCurrentFiscalYear" abstract="false" name="FinancingReceivableYearThreeWriteOffsTwoYearsBeforeCurrentFiscalYear" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="tmus_UnamortizedImputedDiscountandAllowanceforCreditLosses" abstract="false" name="UnamortizedImputedDiscountandAllowanceforCreditLosses" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_ReceivableWithImputedInterestDiscountIncreaseDecrease" abstract="false" name="ReceivableWithImputedInterestDiscountIncreaseDecrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_UnamortizedImputedDiscountAndAllowanceForCreditLossesImpactFromSalesOfReceivables" abstract="false" name="UnamortizedImputedDiscountAndAllowanceForCreditLossesImpactFromSalesOfReceivables" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="tmus_FactoringArrangementMember" abstract="true" name="FactoringArrangementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="tmus_ServiceReceivableSaleArrangementMember" abstract="true" name="ServiceReceivableSaleArrangementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_EIPSaleArrangementMember" abstract="true" name="EIPSaleArrangementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_RevolvingReceivablesFacilityMaximumBorrowingCapacity" abstract="false" name="RevolvingReceivablesFacilityMaximumBorrowingCapacity" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_RevolvingReceivablesFacilityOutstandingBorrowings" abstract="false" name="RevolvingReceivablesFacilityOutstandingBorrowings" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="tmus_CashFlowsBetweenTransferorandTransfereenetcashproceedsduringtheperiod" abstract="false" name="CashFlowsBetweenTransferorandTransfereenetcashproceedsduringtheperiod" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_IndefiniteLivedIntangibleAssetsTransferredToHeldForSale" abstract="false" name="IndefiniteLivedIntangibleAssetsTransferredToHeldForSale" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_OptionalSaleLicensesMember" abstract="true" name="OptionalSaleLicensesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_SpectrumAuctionLicensesMember" abstract="true" name="SpectrumAuctionLicensesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_ComcastCorporationMember" abstract="true" name="ComcastCorporationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_GrainManagementLLCMember" abstract="true" name="GrainManagementLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_SpectrumLicensesMember" abstract="true" name="SpectrumLicensesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_NonCashSpectrumLicenseAcquisitionsMember" abstract="true" name="NonCashSpectrumLicenseAcquisitionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_TypeOfExchangeAxis" abstract="true" name="TypeOfExchangeAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="tmus_TypeOfExchangeDomain" abstract="true" name="TypeOfExchangeDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_SpectrumExchangeTransactionsMember" abstract="true" name="SpectrumExchangeTransactionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_LicensePurchaseAgreementMinimumPeriod" abstract="false" name="LicensePurchaseAgreementMinimumPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="tmus_IncreaseDecreaseToCashTaxLiability" abstract="false" name="IncreaseDecreaseToCashTaxLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_AssetAcquisitionNoncashConsiderationTransferred" abstract="false" name="AssetAcquisitionNoncashConsiderationTransferred" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_GainLossOnLongTermDebtPreTax" abstract="false" name="GainLossOnLongTermDebtPreTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="tmus_ABSNotesMember" abstract="true" name="ABSNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_ECAFacilityMember" abstract="true" name="ECAFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_ThirdPartyEURDenominatedMember" abstract="true" name="ThirdPartyEURDenominatedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="tmus_DebtBalancesAndActivityRollForward" abstract="true" name="DebtBalancesAndActivityRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="tmus_DebtInstrumentReclassifications" abstract="false" name="DebtInstrumentReclassifications" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="tmus_A5.850SeniorNotesDue2056Member" abstract="true" name="A5.850SeniorNotesDue2056Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_A4.250ClassASeniorABSNotesDue2030Member" abstract="true" name="A4.250ClassASeniorABSNotesDue2030Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_A4.557MRFADue2027Member" abstract="true" name="A4.557MRFADue2027Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_A4.750SeniorNotesDue2028Member" abstract="true" name="A4.750SeniorNotesDue2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_A4.750SeniorNotesToAffiliatesDue2028Member" abstract="true" name="A4.750SeniorNotesToAffiliatesDue2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_A1.500SeniorNotesDue2026Member" abstract="true" name="A1.500SeniorNotesDue2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_A2.250SeniorNotesDue2026Member" abstract="true" name="A2.250SeniorNotesDue2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_A5.050ClassASeniorNotesDue2029Member" abstract="true" name="A5.050ClassASeniorNotesDue2029Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="tmus_TotalOfSecuredBridgeLoanFacilityAndSeniorNotesToThirdPartiesRedeemedMemberMember" abstract="true" name="TotalOfSecuredBridgeLoanFacilityAndSeniorNotesToThirdPartiesRedeemedMemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="tmus_SeniorSecuredSeries20181A2NotesDue20285152Member" abstract="true" name="SeniorSecuredSeries20181A2NotesDue20285152Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_ECAFacilityDueNovember20361Member" abstract="true" name="ECAFacilityDueNovember20361Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_DebtInstrumentRedeemedFaceAmount" abstract="false" name="DebtInstrumentRedeemedFaceAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_DebtInstrumentRepurchasedAndRedeemedFaceAmount" abstract="false" name="DebtInstrumentRepurchasedAndRedeemedFaceAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_WriteOffOfPremiumsDiscountsAndIssuanceCostsRedeemedDebt" abstract="false" name="WriteOffOfPremiumsDiscountsAndIssuanceCostsRedeemedDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_WriteOffOfPremiumsDiscountsAndIssuanceCostsRepurchasedDebt" abstract="false" name="WriteOffOfPremiumsDiscountsAndIssuanceCostsRepurchasedDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_WriteoffofPremiumsDiscountsandIssuanceCosts" abstract="false" name="WriteoffofPremiumsDiscountsandIssuanceCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_CrownCastleInternationalCorp.Member" abstract="true" name="CrownCastleInternationalCorp.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_TowerTransactionMember" abstract="true" name="TowerTransactionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_CCITowerLeaseArrangementMember" abstract="true" name="CCITowerLeaseArrangementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_TowerMember" abstract="true" name="TowerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_SaleLeasebackTransactionNumberOfUnits" abstract="false" name="SaleLeasebackTransactionNumberOfUnits" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="tmus_SaleLeasebackTransactionFixedPricePurchaseOptions" abstract="false" name="SaleLeasebackTransactionFixedPricePurchaseOptions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_SaleLeasebackTransactionRemainingTerm" abstract="false" name="SaleLeasebackTransactionRemainingTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="tmus_SaleLeasebackTransactionNumberOfRenewalOptions" abstract="false" name="SaleLeasebackTransactionNumberOfRenewalOptions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="tmus_LeasedOrSubleasedSitesFixedPricePurchaseOption" abstract="false" name="LeasedOrSubleasedSitesFixedPricePurchaseOption" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_LeaseOrSubleaseSitesFixedPricePurchaseOptionExercisablePeriod" abstract="false" name="LeaseOrSubleaseSitesFixedPricePurchaseOptionExercisablePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="tmus_LeaseOrSubleaseSitesFixedPricePurchaseOptionPeriodPriorToExpirationOfAgreement" abstract="false" name="LeaseOrSubleaseSitesFixedPricePurchaseOptionPeriodPriorToExpirationOfAgreement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="tmus_SaleLeasebackInterestRate" abstract="false" name="SaleLeasebackInterestRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="tmus_MinimumLeasePaymentsFailedSaleLeasebackTransactionNextTwelveMonths" abstract="false" name="MinimumLeasePaymentsFailedSaleLeasebackTransactionNextTwelveMonths" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_MinimumLeasePaymentsFailedSaleLeasebackTransactionsWithinTwoAndThreeYears" abstract="false" name="MinimumLeasePaymentsFailedSaleLeasebackTransactionsWithinTwoAndThreeYears" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_MinimumLeasePaymentsFailedSaleLeasebackTransactionsWithinFourAndFiveYears" abstract="false" name="MinimumLeasePaymentsFailedSaleLeasebackTransactionsWithinFourAndFiveYears" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_MinimumLeasePaymentsFailedSaleLeasebackTransactionsThereafter" abstract="false" name="MinimumLeasePaymentsFailedSaleLeasebackTransactionsThereafter" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_GroundLeasesManagedSites" abstract="false" name="GroundLeasesManagedSites" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="tmus_FailedSaleLeasebackTransactionTowerObligationsMember" abstract="true" name="FailedSaleLeasebackTransactionTowerObligationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_OtherLongTermLiabilitiesMember" abstract="true" name="OtherLongTermLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_NumberOfCustomerCategories" abstract="false" name="NumberOfCustomerCategories" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="tmus_ContractWithCustomerRemainingContractDuration" abstract="false" name="ContractWithCustomerRemainingContractDuration" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="tmus_WirelessMember" abstract="true" name="WirelessMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_A2026StockholderReturnProgramMember" abstract="true" name="A2026StockholderReturnProgramMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_O2025Q4DividendsMember" abstract="true" name="O2025Q4DividendsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_O2026Q1DividendsMember" abstract="true" name="O2026Q1DividendsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_O2026Q2DividendsMember" abstract="true" name="O2026Q2DividendsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_DeutscheTelekomAGMember" abstract="true" name="DeutscheTelekomAGMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_StockRepurchasedandRetiredDuringPeriodAverageCostPerShare" abstract="false" name="StockRepurchasedandRetiredDuringPeriodAverageCostPerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="tmus_LossContingencyDamagesAwardedIncrementalValue" abstract="false" name="LossContingencyDamagesAwardedIncrementalValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_NumberOfCustomerAccountsImpacted" abstract="false" name="NumberOfCustomerAccountsImpacted" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="tmus_NetworkingDecommissioningMember" abstract="true" name="NetworkingDecommissioningMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_UScellularAcquisitionRestructuringInitiativesMember" abstract="true" name="UScellularAcquisitionRestructuringInitiativesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_NetworkOptimizationRestructuringInitiativesMember" abstract="true" name="NetworkOptimizationRestructuringInitiativesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_RestructuringIncurredCostStatementOfIncomeOrComprehensiveIncomeExtensibleEnumerationNotDisclosedFlag" abstract="false" name="RestructuringIncurredCostStatementOfIncomeOrComprehensiveIncomeExtensibleEnumerationNotDisclosedFlag" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="tmus_RetailInitiativesMember" abstract="true" name="RetailInitiativesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_A20252026WorkforceTransformationMember" abstract="true" name="A20252026WorkforceTransformationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_OutstandingChecks" abstract="false" name="OutstandingChecks" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_ChangeInCapitalExpendituresIncurredButNotYetPaid" abstract="false" name="ChangeInCapitalExpendituresIncurredButNotYetPaid" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tmus_JohnC.SawMember" abstract="true" name="JohnC.SawMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_SrinivasanGopalanMember" abstract="true" name="SrinivasanGopalanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tmus_DanielJ.DrobacMember" abstract="true" name="DanielJ.DrobacMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
