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  <xsd:element name="SaleLeasebackTransactionMinimumLeaseTerm" id="hwtl_SaleLeasebackTransactionMinimumLeaseTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DebtInstrumentExcessCashFlowUsedForPrepaymentOfDebt" id="hwtl_DebtInstrumentExcessCashFlowUsedForPrepaymentOfDebt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="DebtInstrumentDefermentOfAdditionalFinancingCosts" id="hwtl_DebtInstrumentDefermentOfAdditionalFinancingCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="PropertyPlantAndEquipmentDisposalsCommissionsAndOtherCosts" id="hwtl_PropertyPlantAndEquipmentDisposalsCommissionsAndOtherCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="AmountRequiredToSpendOnTraining" id="hwtl_AmountRequiredToSpendOnTraining" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssets" id="hwtl_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <element id="hwtl_SystemMetricsCorporationMember" name="SystemMetricsCorporationMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <xsd:element name="TelecommunicationsMember" id="hwtl_TelecommunicationsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CorporateOtherExpense" id="hwtl_CorporateOtherExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfRevenueByProductGroupTableTextBlock" id="hwtl_ScheduleOfRevenueByProductGroupTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PerformanceAndMarketBasedRestrictedStockUnitsMember" id="hwtl_PerformanceAndMarketBasedRestrictedStockUnitsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ServiceBasedRestrictedStockUnitsMember" id="hwtl_ServiceBasedRestrictedStockUnitsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DataCenterColocationProductMember" id="hwtl_DataCenterColocationProductMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ProceedsFromInstallmentFinancing" id="hwtl_ProceedsFromInstallmentFinancing" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="JointlyOwnedUtilityPlantAggregateConstructionCostShared" id="hwtl_JointlyOwnedUtilityPlantAggregateConstructionCostShared" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="JointlyOwnedUtilityPlantLongTermInvestmentAmount" id="hwtl_JointlyOwnedUtilityPlantLongTermInvestmentAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="OtherInstallmentsContractsMember" id="hwtl_OtherInstallmentsContractsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ContractualObligationInterestIncludedInPayments" id="hwtl_ContractualObligationInterestIncludedInPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="ContractualObligationPresentValue" id="hwtl_ContractualObligationPresentValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <element id="hwtl_ContractualObligationCurrent" name="ContractualObligationCurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <xsd:element name="ContractualObligationNonCurrent" id="hwtl_ContractualObligationNonCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <element id="hwtl_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationHealthCareCostTrendRateAssumedForNextFiscalYear" name="DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationHealthCareCostTrendRateAssumedForNextFiscalYear" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_Definedbenefitplanassumptionsusedcalculatingbenefitobligationsultimatehealthcarecosttrendrate" name="Definedbenefitplanassumptionsusedcalculatingbenefitobligationsultimatehealthcarecosttrendrate" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_PeriodOfIruRelatedUpFrontPaymentsReceived" name="PeriodOfIruRelatedUpFrontPaymentsReceived" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_AccruedExpensesAndOtherCurrentLiabilitiesAbstract" name="AccruedExpensesAndOtherCurrentLiabilitiesAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_FurnitureVehiclesAndOtherEquipmentMember" name="FurnitureVehiclesAndOtherEquipmentMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_IncomeTaxReconciliationNonDeductibleExpenseReflectedInTaxBasis" name="IncomeTaxReconciliationNonDeductibleExpenseReflectedInTaxBasis" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_PeriodOverWhichUpfrontPaymentReceived" name="PeriodOverWhichUpfrontPaymentReceived" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_JointlyOwnedUtilityPlantMember" name="JointlyOwnedUtilityPlantMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_ProceedsFromSaleOfCapacity" name="ProceedsFromSaleOfCapacity" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_JointlyOwnedUtilityPlantAmountPaidForCableBuild" name="JointlyOwnedUtilityPlantAmountPaidForCableBuild" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_StockIssuedDuringPeriodSharesWarrantsExercised" name="StockIssuedDuringPeriodSharesWarrantsExercised" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_StockIssuedDuringPeriodValueWarrantsExercised" name="StockIssuedDuringPeriodValueWarrantsExercised" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_UpFrontPaymentReceived" name="UpFrontPaymentReceived" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_PeriodOfSupportService" name="PeriodOfSupportService" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_NumberOfEligibleLocationsToOfferBroadband" name="NumberOfEligibleLocationsToOfferBroadband" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_ConnectAmericaFundPhaseIiAnnualFunding" name="ConnectAmericaFundPhaseIiAnnualFunding" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_ConnectAmericaFundPhaseIiMember" name="ConnectAmericaFundPhaseIiMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_AccountingStandardsUpdate201517Member" name="AccountingStandardsUpdate201517Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_DefinedBenefitPlanNetPeriodicBenefitCostBeforeNetGainLossDueToSettlements" name="DefinedBenefitPlanNetPeriodicBenefitCostBeforeNetGainLossDueToSettlements" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="hwtl_DefinedBenefitPlanInterestCostIncludingActuarialAdjustment" name="DefinedBenefitPlanInterestCostIncludingActuarialAdjustment" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
</xsd:schema>


