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  <element id="atni_DisposalGroupIncludingDiscontinuedOperationDebt" name="DisposalGroupIncludingDiscontinuedOperationDebt" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_ConnectAmericaFundPhaseIiAuctionMember" name="ConnectAmericaFundPhaseIiAuctionMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_DisposalGroupIncludingDiscontinuedOperationLongTermDebtCurrent" name="DisposalGroupIncludingDiscontinuedOperationLongTermDebtCurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_DisposalGroupIncludingDiscontinuedOperationLongTermDebtNoncurrent" name="DisposalGroupIncludingDiscontinuedOperationLongTermDebtNoncurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_GrantFundsAwarded" name="GrantFundsAwarded" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_GrantFundTerm" name="GrantFundTerm" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_DisposalGroupIncludingDiscontinuedOperationRestrictedCash" name="DisposalGroupIncludingDiscontinuedOperationRestrictedCash" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_SeriesAndSeriesBNotesMember" name="SeriesAndSeriesBNotesMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_DisposalGroupIncludingDiscontinuedOperationNetGainLossToNonControllingInterests" name="DisposalGroupIncludingDiscontinuedOperationNetGainLossToNonControllingInterests" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_DisposalGroupIncludingDiscontinuedOperationAccruedIncomeTaxesNet" name="DisposalGroupIncludingDiscontinuedOperationAccruedIncomeTaxesNet" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_DispositionsPlatformAndMinorityInvestmentsAbstract" name="DispositionsPlatformAndMinorityInvestmentsAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_DispositionsPlatformAndMinorityInvestmentsTableTextBlock" name="DispositionsPlatformAndMinorityInvestmentsTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_SummaryOfWeightedAverageRemainingLeaseTermAndDiscountRate" name="SummaryOfWeightedAverageRemainingLeaseTermAndDiscountRate" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_FinanceLeaseRightOfUseAssetAccumulatedDepreciation" name="FinanceLeaseRightOfUseAssetAccumulatedDepreciation" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_LeaseDisclosureTextBlock" name="LeaseDisclosureTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_FinanceLeaseInterestCost" name="FinanceLeaseInterestCost" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_OperatingAndFinanceLeaseLiabilityObtainedInExchangeForRightOfUseAsset" name="OperatingAndFinanceLeaseLiabilityObtainedInExchangeForRightOfUseAsset" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_DebtCovenantMaximumInvestmentInUnrestrictedSubsidiaries" name="DebtCovenantMaximumInvestmentInUnrestrictedSubsidiaries" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_PhaseIMobilityFundMember" name="PhaseIMobilityFundMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_PublicServiceElectricGasNoteMember" name="PublicServiceElectricGasNoteMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_AhanaOperationsMember" name="AhanaOperationsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_PaymentsForRepurchaseOfCommonStockSharesBasedCompensation" name="PaymentsForRepurchaseOfCommonStockSharesBasedCompensation" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_IncomeTaxBenefitFromReversalOfDeferredTaxLiabilityDueToIntercompanyDebtRestructure" name="IncomeTaxBenefitFromReversalOfDeferredTaxLiabilityDueToIntercompanyDebtRestructure" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_ScheduleOfSegmentCapitalExpendituresTableTextBlock" name="ScheduleOfSegmentCapitalExpendituresTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_DebtInstrumentCovenantNetLeverageRatioIfQualifyingEvent" name="DebtInstrumentCovenantNetLeverageRatioIfQualifyingEvent" nillable="true" type="xbrli:pureItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_PeriodForRetailRevenueBilledInAdvanceForPostpaidCustomers" name="PeriodForRetailRevenueBilledInAdvanceForPostpaidCustomers" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_EffectiveIncomeTaxRateReconciliationReturnToAccrualAdjustment" name="EffectiveIncomeTaxRateReconciliationReturnToAccrualAdjustment" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_EffectiveIncomeTaxRateReconciliationValuationAllowanceAdjustmentOnIndefiniteLivedIntangibleAsset" name="EffectiveIncomeTaxRateReconciliationValuationAllowanceAdjustmentOnIndefiniteLivedIntangibleAsset" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_RenewableEnergyPartnershipMember" name="RenewableEnergyPartnershipMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_EffectiveIncomeTaxRateReconciliationDispositionOfLicenseAmount" name="EffectiveIncomeTaxRateReconciliationDispositionOfLicenseAmount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" xmlns="http://www.w3.org/2001/XMLSchema" />
  <element id="atni_ShortTermInvestmentsAndCommercialPaperMember" name="ShortTermInvestmentsAndCommercialPaperMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" xmlns="http://www.w3.org/2001/XMLSchema" />
</xsd:schema>
