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  <xsd:import namespace="http://fasb.org/us-gaap/2012-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/country/2012-01-31" schemaLocation="http://xbrl.sec.gov/country/2012/country-2012-01-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://fasb.org/us-types/2012-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2012/elts/us-types-2012-01-31.xsd" />
  <xsd:element name="DocumentAndEntityInformationAbstact" id="atni_DocumentAndEntityInformationAbstact" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FiniteLivedTradeNamesNet" id="atni_FiniteLivedTradeNamesNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="FiniteLivedCustomerRelationshipsNet" id="atni_FiniteLivedCustomerRelationshipsNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="TerminationAndAccessFees" id="atni_TerminationAndAccessFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="EngineeringAndOperationExpense" id="atni_EngineeringAndOperationExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="CostOfEquipmentRevenue" id="atni_CostOfEquipmentRevenue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="USWirelessRetailMember" id="atni_USWirelessRetailMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="USWirelessWholesaleMember" id="atni_USWirelessWholesaleMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InternationalWirelessMember" id="atni_InternationalWirelessMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WirelineMember" id="atni_WirelineMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EquipmentAndOtherMember" id="atni_EquipmentAndOtherMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GainOnBargainPurchaseDeferredTax" id="atni_GainOnBargainPurchaseDeferredTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NetIncomeAttributableToNoncontrollingInterestsTax" id="atni_NetIncomeAttributableToNoncontrollingInterestsTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseInInventoryPrepaymentsAndOtherCurrentAssets" id="atni_IncreaseDecreaseInInventoryPrepaymentsAndOtherCurrentAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesAdvancePaymentsAndDepositsAndOtherCurrentLiabilities" id="atni_IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesAdvancePaymentsAndDepositsAndOtherCurrentLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="OrganizationAndBusinessOperationsDisclosureAbstract" id="atni_OrganizationAndBusinessOperationsDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="UseOfEstimatesDisclosureAbstract" id="atni_UseOfEstimatesDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="UseOfEstimatesDisclosureTextBlock" id="atni_UseOfEstimatesDisclosureTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="M3WirelessLtdMember" id="atni_M3WirelessLtdMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NavajoTribalUtilityAuthorityMember" id="atni_NavajoTribalUtilityAuthorityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CommnetWirelessLLCMember" id="atni_CommnetWirelessLLCMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CaribbeanTelecomPartnersLLCMember" id="atni_CaribbeanTelecomPartnersLLCMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BusinessAcquisitionPurchasePriceAllocationWorkingCapitalNet" id="atni_BusinessAcquisitionPurchasePriceAllocationWorkingCapitalNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BusinessAcquisitionAssetsAcquiredRelatedInformationAbstract" id="atni_BusinessAcquisitionAssetsAcquiredRelatedInformationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BusinessAcquisitionConsolidatedInformationReportedAbstract" id="atni_BusinessAcquisitionConsolidatedInformationReportedAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BusinessAcquisitionProFormaEarningsPerShareAbstract" id="atni_BusinessAcquisitionProFormaEarningsPerShareAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TermLoanMember" id="atni_TermLoanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TermLoanA1Member" id="atni_TermLoanA1Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TermLoanA2Member" id="atni_TermLoanA2Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SwinglineSubFacilityMember" id="atni_SwinglineSubFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DebtInstrumentVariableRateBaseAxis" id="atni_DebtInstrumentVariableRateBaseAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DebtInstrumentVariableRateBaseDomain" id="atni_DebtInstrumentVariableRateBaseDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DebtInstrumentVariableRateBaseLIBORMember" id="atni_DebtInstrumentVariableRateBaseLIBORMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DebtInstrumentVariableRateBaseRateMember" id="atni_DebtInstrumentVariableRateBaseRateMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DebtInstrumentVariableRateBaseOneWeekLIBORMember" id="atni_DebtInstrumentVariableRateBaseOneWeekLIBORMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DebtInstrumentVariableRateBaseOneMonthLIBORMember" id="atni_DebtInstrumentVariableRateBaseOneMonthLIBORMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="KeytechLtdMember" id="atni_KeytechLtdMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LongTermDebtNoncurrentCarryingAmount" id="atni_LongTermDebtNoncurrentCarryingAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="DebtInstrumentIncreaseAdditionalBorrowingsSubjectToLenderApproval" id="atni_DebtInstrumentIncreaseAdditionalBorrowingsSubjectToLenderApproval" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="NotionalAmountOfInterestRateCashFlowHedgeDerivativesBeforeReduction" id="atni_NotionalAmountOfInterestRateCashFlowHedgeDerivativesBeforeReduction" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NotionalAmountOfInterestRateCashFlowHedgeDerivativesAfterReduction" id="atni_NotionalAmountOfInterestRateCashFlowHedgeDerivativesAfterReduction" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="USWirelessMember" id="atni_USWirelessMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InternationalIntegratedTelephonyMember" id="atni_InternationalIntegratedTelephonyMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IslandWirelessMember" id="atni_IslandWirelessMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="USWirelineMember" id="atni_USWirelineMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CapitalExpendituresAbstract" id="atni_CapitalExpendituresAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CommitmentToProvideDomesticFixedServicesAndInternationalVoiceAndDataServicesMember" id="atni_CommitmentToProvideDomesticFixedServicesAndInternationalVoiceAndDataServicesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AllCountriesAxis" id="atni_AllCountriesAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SupplyCommitmentInitialTermOfLicence" id="atni_SupplyCommitmentInitialTermOfLicence" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SupplyCommitmentPeriodAvailableUnderOptionsForLicenceExtension" id="atni_SupplyCommitmentPeriodAvailableUnderOptionsForLicenceExtension" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LossContingencyPeriodForWhichLitigationProceedingsWereNotSubjectOfDiscussionsOrOtherSignificantActivity" id="atni_LossContingencyPeriodForWhichLitigationProceedingsWereNotSubjectOfDiscussionsOrOtherSignificantActivity" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalAcquisitionOfAdditionalInterestsInMajorityOwnedSubsidiary" id="atni_AdjustmentsToAdditionalPaidInCapitalAcquisitionOfAdditionalInterestsInMajorityOwnedSubsidiary" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="TaxImpactOfMinorityInterestIncreaseFromStockIssuance" id="atni_TaxImpactOfMinorityInterestIncreaseFromStockIssuance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="JointVenturePartiallyFundedByBroadbandGrantToCoVenturerAmount" id="atni_JointVenturePartiallyFundedByBroadbandGrantToCoVenturerAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="CreditFacilityMember" id="atni_CreditFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AmendmentToCreditFacilityMember" id="atni_AmendmentToCreditFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AntidilutiveSecuritiesExcludedFromComputationOfDilutedEarningsPerShareAbstract" id="atni_AntidilutiveSecuritiesExcludedFromComputationOfDilutedEarningsPerShareAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BasisOfPresentationDisclosureAbstract" id="atni_BasisOfPresentationDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BasisOfPresentationConsolidationAndRecentAccountingPronouncementsDisclosureTextBlock" id="atni_BasisOfPresentationConsolidationAndRecentAccountingPronouncementsDisclosureTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BermudaDigitalCommunicationsMember" id="atni_BermudaDigitalCommunicationsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BusinessAcquisitionPurchasePriceAllocationNotesPayableAndLongTermDebtAffiliate" id="atni_BusinessAcquisitionPurchasePriceAllocationNotesPayableAndLongTermDebtAffiliate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="NotionalAmountOfInterestRateCashFlowHedgeDerivativeAcquired" id="atni_NotionalAmountOfInterestRateCashFlowHedgeDerivativeAcquired" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NoncontrollingInterestsRepurchased" id="atni_NoncontrollingInterestsRepurchased" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="LineOfCreditFacilityMaximumBorrowingCapacityNumberOfLoans" id="atni_LineOfCreditFacilityMaximumBorrowingCapacityNumberOfLoans" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PrincipalSubsidiariesOperatingActivitiesRevenueReportingSegmentsAndMarketsServed" id="atni_PrincipalSubsidiariesOperatingActivitiesRevenueReportingSegmentsAndMarketsServed" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfPrincipalSubsidiariesOperatingActivitiesRevenueReportingSegmentsAndMarketsServedTableTextBlock" id="atni_ScheduleOfPrincipalSubsidiariesOperatingActivitiesRevenueReportingSegmentsAndMarketsServedTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
</xsd:schema>
