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<!-- Creation Date      : 2017-02-23T05:12:12.0750272+00:00 -->
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<!-- Copyright (c) 2017 Donnelley Financial, LLC. All Rights Reserved. -->
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  <element id="csal_SecuredLeverageRatio" name="SecuredLeverageRatio" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <element id="csal_LeverageRatio" name="LeverageRatio" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <element id="csal_DebtInstrumentIssuedPercentOfPar" name="DebtInstrumentIssuedPercentOfPar" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
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  <element id="csal_CommonStockOrdinaryDividendsDistributionPerShare" name="CommonStockOrdinaryDividendsDistributionPerShare" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
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  <element id="csal_DefinedContributionPlanNextTwoPercentOfEmployeesCompensationMember" name="DefinedContributionPlanNextTwoPercentOfEmployeesCompensationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
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  <element id="csal_LeasingOperationsMember" name="LeasingOperationsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_TowersMember" name="TowersMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
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</schema>
