<?xml version="1.0" encoding="us-ascii"?>
<!-- RRD ActiveDisclosure(SM) XBRL Schema Document - http://www.financial.rrd.com/ -->
<!-- Creation Date      : 2016-11-11T15:34:49.0853820+00:00 -->
<!-- Version            : 2.3.8.1 -->
<!-- Package ID         : 0046656E2E756BDDF6E64EBBF3E4E662-0001620280-001608 -->
<!-- Copyright (c) 2016 R. R. Donnelley & Sons Company. All Rights Reserved. -->
<schema xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:us-types="http://fasb.org/us-types/2016-01-31" xmlns:stpr="http://xbrl.sec.gov/stpr/2011-01-31" xmlns:naics="http://xbrl.sec.gov/naics/2011-01-31" xmlns:sic="http://xbrl.sec.gov/sic/2011-01-31" xmlns:invest="http://xbrl.sec.gov/invest/2013-01-31" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:us-gaap="http://fasb.org/us-gaap/2016-01-31" xmlns:dei="http://xbrl.sec.gov/dei/2014-01-31" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:country="http://xbrl.sec.gov/country/2016-01-31" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:currency="http://xbrl.sec.gov/currency/2016-01-31" xmlns:csal="http://www.cslreit.com/20160930" xmlns:exch="http://xbrl.sec.gov/exch/2016-01-31" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.cslreit.com/20160930" xmlns="http://www.w3.org/2001/XMLSchema">
  <import schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" namespace="http://www.xbrl.org/2003/instance" />
  <import schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" namespace="http://www.xbrl.org/2003/linkbase" />
  <import schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" namespace="http://xbrl.org/2005/xbrldt" />
  <import schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" namespace="http://www.xbrl.org/dtr/type/numeric" />
  <import schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" namespace="http://www.xbrl.org/dtr/type/non-numeric" />
  <import schemaLocation="http://xbrl.fasb.org/us-gaap/2016/elts/us-types-2016-01-31.xsd" namespace="http://fasb.org/us-types/2016-01-31" />
  <import schemaLocation="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd" namespace="http://fasb.org/us-gaap/2016-01-31" />
  <import schemaLocation="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd" namespace="http://xbrl.sec.gov/dei/2014-01-31" />
  <import schemaLocation="http://xbrl.sec.gov/country/2016/country-2016-01-31.xsd" namespace="http://xbrl.sec.gov/country/2016-01-31" />
  <import schemaLocation="http://xbrl.sec.gov/currency/2016/currency-2016-01-31.xsd" namespace="http://xbrl.sec.gov/currency/2016-01-31" />
  <import schemaLocation="http://xbrl.sec.gov/exch/2016/exch-2016-01-31.xsd" namespace="http://xbrl.sec.gov/exch/2016-01-31" />
  <import schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd" namespace="http://xbrl.sec.gov/invest/2013-01-31" />
  <import schemaLocation="http://xbrl.sec.gov/naics/2011/naics-2011-01-31.xsd" namespace="http://xbrl.sec.gov/naics/2011-01-31" />
  <import schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" namespace="http://xbrl.sec.gov/sic/2011-01-31" />
  <import schemaLocation="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd" namespace="http://xbrl.sec.gov/stpr/2011-01-31" />
  <annotation>
    <appinfo>
      <link:roleType id="TemplateLink" roleURI="http://www.cslreit.com/20160930/role/TemplateLink" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>00000 - Document - Template Link</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="csal-20160930_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:title="Calculation Links, all" xlink:type="simple" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="csal-20160930_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:title="Definition Links, all" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="csal-20160930_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:title="Label Links, all" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="csal-20160930_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:title="Presentation Links, all" xlink:type="simple" />
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DocumentDocumentAndEntityInformation" id="Role_DocumentDocumentAndEntityInformation">
        <link:definition>100000 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsUnaudited" id="Role_StatementCondensedConsolidatedBalanceSheetsUnaudited">
        <link:definition>100010 - Statement - Condensed Consolidated Balance Sheets (unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParentheticalUnaudited" id="Role_StatementCondensedConsolidatedBalanceSheetsParentheticalUnaudited">
        <link:definition>100020 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) (unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/StatementCondensedConsolidatedStatementsOfIncomeUnaudited" id="Role_StatementCondensedConsolidatedStatementsOfIncomeUnaudited">
        <link:definition>100030 - Statement - Condensed Consolidated Statements of Income (unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveIncomeLossUnaudited" id="Role_StatementCondensedConsolidatedStatementsOfComprehensiveIncomeLossUnaudited">
        <link:definition>100040 - Statement - Condensed Consolidated Statements of Comprehensive Income (Loss) (unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/StatementCondensedConsolidatedStatementsOfShareholdersDeficitUnaudited" id="Role_StatementCondensedConsolidatedStatementsOfShareholdersDeficitUnaudited">
        <link:definition>100050 - Statement - Condensed Consolidated Statements of Shareholders&apos; Deficit (unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited" id="Role_StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited">
        <link:definition>100060 - Statement - Condensed Consolidated Statements of Cash Flows (unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsParentheticalUnaudited" id="Role_StatementCondensedConsolidatedStatementsOfCashFlowsParentheticalUnaudited">
        <link:definition>100070 - Statement - Condensed Consolidated Statements of Cash Flows (Parenthetical) (unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/StatementStatementsOfRevenuesAndDirectExpensesUnaudited" id="Role_StatementStatementsOfRevenuesAndDirectExpensesUnaudited">
        <link:definition>100080 - Statement - Statements of Revenues and Direct Expenses (unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusiness" id="Role_DisclosureOrganizationAndDescriptionOfBusiness">
        <link:definition>100090 - Disclosure - Organization and Description of Business</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPolicies" id="Role_DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPolicies">
        <link:definition>100100 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureBusinessCombinations" id="Role_DisclosureBusinessCombinations">
        <link:definition>100110 - Disclosure - Business Combinations</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureFairValueOfFinancialInstruments" id="Role_DisclosureFairValueOfFinancialInstruments">
        <link:definition>100120 - Disclosure - Fair Value of Financial Instruments</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosurePropertyPlantAndEquipment" id="Role_DisclosurePropertyPlantAndEquipment">
        <link:definition>100130 - Disclosure - Property, Plant and Equipment</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureDerivativeInstrumentsAndHedgingActivities" id="Role_DisclosureDerivativeInstrumentsAndHedgingActivities">
        <link:definition>100140 - Disclosure - Derivative Instruments and Hedging Activities</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureGoodwillAndIntangibleAssets" id="Role_DisclosureGoodwillAndIntangibleAssets">
        <link:definition>100150 - Disclosure - Goodwill and Intangible Assets</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureNotesAndOtherDebt" id="Role_DisclosureNotesAndOtherDebt">
        <link:definition>100160 - Disclosure - Notes and Other Debt</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureCapitalStock" id="Role_DisclosureCapitalStock">
        <link:definition>100170 - Disclosure - Capital Stock</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureRelatedPartyTransactions" id="Role_DisclosureRelatedPartyTransactions">
        <link:definition>100180 - Disclosure - Related Party Transactions</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureEarningsPerShare" id="Role_DisclosureEarningsPerShare">
        <link:definition>100190 - Disclosure - Earnings Per Share</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureSegmentInformation" id="Role_DisclosureSegmentInformation">
        <link:definition>100200 - Disclosure - Segment Information</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureCommitmentAndContingencies" id="Role_DisclosureCommitmentAndContingencies">
        <link:definition>100210 - Disclosure - Commitment and Contingencies</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureAccumulatedOtherComprehensiveIncome" id="Role_DisclosureAccumulatedOtherComprehensiveIncome">
        <link:definition>100220 - Disclosure - Accumulated Other Comprehensive Income</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureSupplementalGuarantorInformation" id="Role_DisclosureSupplementalGuarantorInformation">
        <link:definition>100230 - Disclosure - Supplemental Guarantor Information</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureSubsequentEvents" id="Role_DisclosureSubsequentEvents">
        <link:definition>100240 - Disclosure - Subsequent Events</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureDescriptionOfBusiness" id="Role_DisclosureDescriptionOfBusiness">
        <link:definition>100250 - Disclosure - Description of Business</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureBasisOfPresentation" id="Role_DisclosureBasisOfPresentation">
        <link:definition>100260 - Disclosure - Basis of Presentation</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies" id="Role_DisclosureSummaryOfSignificantAccountingPolicies">
        <link:definition>100270 - Disclosure - Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureAllocations" id="Role_DisclosureAllocations">
        <link:definition>100280 - Disclosure - Allocations</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" id="Role_DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies">
        <link:definition>100290 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureBusinessCombinationsTables" id="Role_DisclosureBusinessCombinationsTables">
        <link:definition>100300 - Disclosure - Business Combinations (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsTables" id="Role_DisclosureFairValueOfFinancialInstrumentsTables">
        <link:definition>100310 - Disclosure - Fair Value of Financial Instruments (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosurePropertyPlantAndEquipmentTables" id="Role_DisclosurePropertyPlantAndEquipmentTables">
        <link:definition>100320 - Disclosure -  Property, Plant and Equipment (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureDerivativeInstrumentsAndHedgingActivitiesTables" id="Role_DisclosureDerivativeInstrumentsAndHedgingActivitiesTables">
        <link:definition>100330 - Disclosure - Derivative Instruments and Hedging Activities (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsTables" id="Role_DisclosureGoodwillAndIntangibleAssetsTables">
        <link:definition>100340 - Disclosure - Goodwill and Intangible Assets (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureNotesAndOtherDebtTables" id="Role_DisclosureNotesAndOtherDebtTables">
        <link:definition>100350 - Disclosure - Notes and Other Debt (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureEarningsPerShareTables" id="Role_DisclosureEarningsPerShareTables">
        <link:definition>100360 - Disclosure - Earnings Per Share (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureSegmentInformationTables" id="Role_DisclosureSegmentInformationTables">
        <link:definition>100370 - Disclosure - Segment Information (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureAccumulatedOtherComprehensiveIncomeTables" id="Role_DisclosureAccumulatedOtherComprehensiveIncomeTables">
        <link:definition>100380 - Disclosure - Accumulated Other Comprehensive Income (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureSupplementalGuarantorInformationTables" id="Role_DisclosureSupplementalGuarantorInformationTables">
        <link:definition>100390 - Disclosure - Supplemental Guarantor Information (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" id="Role_DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails">
        <link:definition>100400 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureBusinessCombinationsAdditionalInformationDetails" id="Role_DisclosureBusinessCombinationsAdditionalInformationDetails">
        <link:definition>100410 - Disclosure - Business Combinations - Additional Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureBusinessCombinationsSummaryOfEstimatedFairValuesOfAssetsAcquiredAndLiabilitiesAssumedDetails" id="Role_DisclosureBusinessCombinationsSummaryOfEstimatedFairValuesOfAssetsAcquiredAndLiabilitiesAssumedDetails">
        <link:definition>100420 - Disclosure - Business Combinations - Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureBusinessCombinationsUnauditedProFormaSummaryOfFinancialResultsDetails" id="Role_DisclosureBusinessCombinationsUnauditedProFormaSummaryOfFinancialResultsDetails">
        <link:definition>100430 - Disclosure - Business Combinations - Unaudited Pro Forma Summary of Financial Results (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfFairValueValuationOfFinancialInstrumentsDetails" id="Role_DisclosureFairValueOfFinancialInstrumentsScheduleOfFairValueValuationOfFinancialInstrumentsDetails">
        <link:definition>100440 - Disclosure - Fair Value of Financial Instruments - Schedule of Fair Value Valuation of Financial Instruments (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfFairValueValuationOfFinancialInstrumentsParentheticalDetails" id="Role_DisclosureFairValueOfFinancialInstrumentsScheduleOfFairValueValuationOfFinancialInstrumentsParentheticalDetails">
        <link:definition>100450 - Disclosure - Fair Value of Financial Instruments - Schedule of Fair Value Valuation of Financial Instruments (Parenthetical) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails" id="Role_DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails">
        <link:definition>100460 - Disclosure - Fair Value of Financial Instruments - Additional Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsRollForwardOfLiabilityMeasuredAtFairValueOnRecurringBasisUsingUnobservableInputsDetails" id="Role_DisclosureFairValueOfFinancialInstrumentsRollForwardOfLiabilityMeasuredAtFairValueOnRecurringBasisUsingUnobservableInputsDetails">
        <link:definition>100470 - Disclosure - Fair Value of Financial Instruments - Roll Forward of Liability Measured at Fair Value on Recurring Basis Using Unobservable Inputs (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosurePropertyPlantAndEquipmentScheduleOfCarryingValueOfPropertyPlantAndEquipmentDetails" id="Role_DisclosurePropertyPlantAndEquipmentScheduleOfCarryingValueOfPropertyPlantAndEquipmentDetails">
        <link:definition>100480 - Disclosure - Property, Plant and Equipment - Schedule of Carrying Value of Property, Plant and Equipment (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosurePropertyPlantAndEquipmentAdditionalInformationDetails" id="Role_DisclosurePropertyPlantAndEquipmentAdditionalInformationDetails">
        <link:definition>100490 - Disclosure - Property, Plant and Equipment - Additional Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureDerivativeInstrumentsAndHedgingActivitiesAdditionalInformationDetails" id="Role_DisclosureDerivativeInstrumentsAndHedgingActivitiesAdditionalInformationDetails">
        <link:definition>100500 - Disclosure - Derivative Instruments and Hedging Activities - Additional Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureDerivativeInstrumentsAndHedgingActivitiesSummaryOfFairValueOfDerivativeInstrumentsAndPresentationInCondensedConsolidatedBalanceSheetDetails" id="Role_DisclosureDerivativeInstrumentsAndHedgingActivitiesSummaryOfFairValueOfDerivativeInstrumentsAndPresentationInCondensedConsolidatedBalanceSheetDetails">
        <link:definition>100510 - Disclosure - Derivative Instruments and Hedging Activities - Summary of Fair Value of Derivative Instruments and Presentation in Condensed Consolidated Balance Sheet (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsScheduleOfCarryingAmountOfGoodwillDetails" id="Role_DisclosureGoodwillAndIntangibleAssetsScheduleOfCarryingAmountOfGoodwillDetails">
        <link:definition>100520 - Disclosure - Goodwill and Intangible Assets - Schedule of Carrying Amount of Goodwill (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsScheduleOfCarryingValueOfIntangibleAssetsDetails" id="Role_DisclosureGoodwillAndIntangibleAssetsScheduleOfCarryingValueOfIntangibleAssetsDetails">
        <link:definition>100530 - Disclosure - Goodwill and Intangible Assets - Schedule of Carrying Value of the Intangible Assets (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsAdditionalInformationDetails" id="Role_DisclosureGoodwillAndIntangibleAssetsAdditionalInformationDetails">
        <link:definition>100540 - Disclosure - Goodwill and Intangible Assets - Additional Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureNotesAndOtherDebtScheduleOfNotesAndOtherDebtDetails" id="Role_DisclosureNotesAndOtherDebtScheduleOfNotesAndOtherDebtDetails">
        <link:definition>100550 - Disclosure - Notes and Other Debt - Schedule of Notes and Other Debt (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureNotesAndOtherDebtScheduleOfNotesAndOtherDebtParentheticalDetails" id="Role_DisclosureNotesAndOtherDebtScheduleOfNotesAndOtherDebtParentheticalDetails">
        <link:definition>100560 - Disclosure - Notes and Other Debt - Schedule of Notes and Other Debt (Parenthetical) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureNotesAndOtherDebtAdditionalInformationDetails" id="Role_DisclosureNotesAndOtherDebtAdditionalInformationDetails">
        <link:definition>100570 - Disclosure - Notes and Other Debt - Additional Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureCapitalStockAdditionalInformationDetails" id="Role_DisclosureCapitalStockAdditionalInformationDetails">
        <link:definition>100580 - Disclosure - Capital Stock - Additional Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureRelatedPartyTransactionsAdditionalInformationDetails" id="Role_DisclosureRelatedPartyTransactionsAdditionalInformationDetails">
        <link:definition>100590 - Disclosure - Related Party Transactions - Additional Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureEarningsPerShareScheduleOfEarningsPerShareBasicAndDilutedDetails" id="Role_DisclosureEarningsPerShareScheduleOfEarningsPerShareBasicAndDilutedDetails">
        <link:definition>100600 - Disclosure - Earnings Per Share - Schedule of Earnings Per Share Basic and Diluted (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureEarningsPerShareAdditionalInformationDetails" id="Role_DisclosureEarningsPerShareAdditionalInformationDetails">
        <link:definition>100610 - Disclosure - Earnings Per Share - Additional Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureSegmentInformationAdditionalInformationDetails" id="Role_DisclosureSegmentInformationAdditionalInformationDetails">
        <link:definition>100620 - Disclosure - Segment Information - Additional Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureSegmentInformationScheduleOfSegmentInformationDetails" id="Role_DisclosureSegmentInformationScheduleOfSegmentInformationDetails">
        <link:definition>100630 - Disclosure - Segment Information - Schedule of Segment Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureSegmentInformationSummaryOfTotalAssetsByBusinessSegmentDetails" id="Role_DisclosureSegmentInformationSummaryOfTotalAssetsByBusinessSegmentDetails">
        <link:definition>100640 - Disclosure - Segment Information - Summary of Total Assets by Business Segment (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails" id="Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetails">
        <link:definition>100650 - Disclosure - Commitments and Contingencies - Additional Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureAccumulatedOtherComprehensiveIncomeScheduleOfChangesInAccumulatedOtherComprehensiveIncomeByComponentDetails" id="Role_DisclosureAccumulatedOtherComprehensiveIncomeScheduleOfChangesInAccumulatedOtherComprehensiveIncomeByComponentDetails">
        <link:definition>100660 - Disclosure - Accumulated Other Comprehensive Income - Schedule of Changes in Accumulated Other Comprehensive Income by Component (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureSupplementalGuarantorInformationAdditionalInformationDetails" id="Role_DisclosureSupplementalGuarantorInformationAdditionalInformationDetails">
        <link:definition>100670 - Disclosure - Supplemental Guarantor Information - Additional Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureSupplementalGuarantorInformationCondensedConsolidatingBalanceSheetDetails" id="Role_DisclosureSupplementalGuarantorInformationCondensedConsolidatingBalanceSheetDetails">
        <link:definition>100680 - Disclosure - Supplemental Guarantor Information - Condensed Consolidating Balance Sheet (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureSupplementalGuarantorInformationCondensedConsolidatingStatementOfComprehensiveIncomeLossDetails" id="Role_DisclosureSupplementalGuarantorInformationCondensedConsolidatingStatementOfComprehensiveIncomeLossDetails">
        <link:definition>100690 - Disclosure - Supplemental Guarantor Information - Condensed Consolidating Statement of Comprehensive Income (Loss) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureSupplementalGuarantorInformationCondensedConsolidatedStatementOfCashFlowsDetails" id="Role_DisclosureSupplementalGuarantorInformationCondensedConsolidatedStatementOfCashFlowsDetails">
        <link:definition>100700 - Disclosure - Supplemental Guarantor Information - Condensed Consolidated Statement of Cash Flows (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureSubsequentEventsAdditionalInformationDetails" id="Role_DisclosureSubsequentEventsAdditionalInformationDetails">
        <link:definition>100710 - Disclosure - Subsequent Events - Additional Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.cslreit.com/20160930/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" id="Role_DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails">
        <link:definition>100720 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </appinfo>
  </annotation>
  <element id="csal_TransactionRelatedCost" name="TransactionRelatedCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="csal_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableAccruedExpensesAndOtherLiabilities" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableAccruedExpensesAndOtherLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="csal_AmortizationOfDiscountOnConvertiblePreferredStock" name="AmortizationOfDiscountOnConvertiblePreferredStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="csal_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" name="AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="csal_PaymentsOfCashInLieuOfFractionalShares" name="PaymentsOfCashInLieuOfFractionalShares" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="csal_IntercompanyTransactionsNet" name="IntercompanyTransactionsNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="csal_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_LeasingMember" name="LeasingMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_FiberInfrastructureMember" name="FiberInfrastructureMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_ConsumerCLECSegmentMember" name="ConsumerCLECSegmentMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_AdjustmentToAdditionalPaidInCapitalDueToAmortizationOfDiscountOnConvertiblePreferredStock" name="AdjustmentToAdditionalPaidInCapitalDueToAmortizationOfDiscountOnConvertiblePreferredStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="csal_DistributionToParentRelatedToSpinOff" name="DistributionToParentRelatedToSpinOff" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="csal_TenantCapitalImprovements" name="TenantCapitalImprovements" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="csal_WindstreamServicesLLCMember" name="WindstreamServicesLLCMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_ConsumerCLECBusinessMember" name="ConsumerCLECBusinessMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_CondensedFinancialInformationDisclosureAbstract" name="CondensedFinancialInformationDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_SummaryOfSignificantAccountingPoliciesLineItems" name="SummaryOfSignificantAccountingPoliciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_SummaryOfSignificantAccountingPoliciesTable" name="SummaryOfSignificantAccountingPoliciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_AllocationsDisclosureTextBlock" name="AllocationsDisclosureTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="csal_AllocationsAbstract" name="AllocationsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_AllocationsLineItems" name="AllocationsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_AllocationsTable" name="AllocationsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_TransactionRelatedCostsPolicyTextBlock" name="TransactionRelatedCostsPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="csal_ScheduleOfIntangibleAssetsTableTextBlock" name="ScheduleOfIntangibleAssetsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="csal_PercentageOfAggregateAmountOfContingentConsiderationPayments" name="PercentageOfAggregateAmountOfContingentConsiderationPayments" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <element id="csal_TowerCloudIncMember" name="TowerCloudIncMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_WindstreamTowersMember" name="WindstreamTowersMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_PEGBandwidthLLCMember" name="PEGBandwidthLLCMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_SummitWirelessInfrastructureLLCMember" name="SummitWirelessInfrastructureLLCMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_OperatingLossCarryForwardsExpirationYear" name="OperatingLossCarryForwardsExpirationYear" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="csal_BusinessAcquisitionsProFormaNetIncomeLossPerShare" name="BusinessAcquisitionsProFormaNetIncomeLossPerShare" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="csal_NumberOfWirelessTowersAcquired" name="NumberOfWirelessTowersAcquired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <element id="csal_NumberOfWirelessTowersAcquiredByOperatingRights" name="NumberOfWirelessTowersAcquiredByOperatingRights" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <element id="csal_SeniorSecuredRevolvingCreditFacilityMember" name="SeniorSecuredRevolvingCreditFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_SixPercentageSeniorSecuredNotesDueAprilFifteenTwoThousandTwentyThreeMember" name="SixPercentageSeniorSecuredNotesDueAprilFifteenTwoThousandTwentyThreeMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_EightPointTwoFivePercentageSeniorUnsecuredNotesDueOctoberFifteenTwoThousandTwentyThreeMember" name="EightPointTwoFivePercentageSeniorUnsecuredNotesDueOctoberFifteenTwoThousandTwentyThreeMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_SeniorSecuredTermLoanBFacilityMember" name="SeniorSecuredTermLoanBFacilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_RealPropertyInterestsMember" name="RealPropertyInterestsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_PolesMember" name="PolesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_FiberMember" name="FiberMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_CopperMember" name="CopperMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_ConduitMember" name="ConduitMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_TowerAssetsMember" name="TowerAssetsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_DerivativeInstrumentsWeightedAverageFixedRatePaid" name="DerivativeInstrumentsWeightedAverageFixedRatePaid" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <element id="csal_IncreaseDecreaseInEstimatedInterestExpense" name="IncreaseDecreaseInEstimatedInterestExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="csal_ScheduleOfIndefiniteAndFiniteLivedIntangibleAssetsAndLiabilitiesLineItems" name="ScheduleOfIndefiniteAndFiniteLivedIntangibleAssetsAndLiabilitiesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_ScheduleOfIndefiniteAndFiniteLivedIntangibleAssetsAndLiabilitiesTable" name="ScheduleOfIndefiniteAndFiniteLivedIntangibleAssetsAndLiabilitiesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_IntangibleAssetsAccumulatedAmortization" name="IntangibleAssetsAccumulatedAmortization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="csal_FiniteLivedIntangibleAssetsAmortizationExpenseYearSix" name="FiniteLivedIntangibleAssetsAmortizationExpenseYearSix" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="csal_DebtInstrumentUnamortizedDiscountAndIssuanceCosts" name="DebtInstrumentUnamortizedDiscountAndIssuanceCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="csal_DebtInstrumentImputedInterestRate" name="DebtInstrumentImputedInterestRate" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="csal_CSLCapitalLLCMember" name="CSLCapitalLLCMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_EightPointTwoFivePercentageSeniorSecuredNotesDueOctoberFifteenTwoThousandTwentyThreeMember" name="EightPointTwoFivePercentageSeniorSecuredNotesDueOctoberFifteenTwoThousandTwentyThreeMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_DebtInstrumentIssuedPercentOfPar" name="DebtInstrumentIssuedPercentOfPar" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="csal_DebtInstrumentsMaturityPeriod" name="DebtInstrumentsMaturityPeriod" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="csal_TermLoanIssuePricePercentageOfPar" name="TermLoanIssuePricePercentageOfPar" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <element id="csal_DebtAmortizationPercentage" name="DebtAmortizationPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <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_ProceedsFromIssuanceOfCommonStockNetOfUnderwritingDiscountsAndCommissions" name="ProceedsFromIssuanceOfCommonStockNetOfUnderwritingDiscountsAndCommissions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="csal_DistributionMadeToLimitedLiabilityCompanyMemberPercentageDistribution" name="DistributionMadeToLimitedLiabilityCompanyMemberPercentageDistribution" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="csal_WindstreamMember" name="WindstreamMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_MasterLeaseMember" name="MasterLeaseMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_TransitionalServiceAgreementMember" name="TransitionalServiceAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_WholesaleMasterServicesAgreementMember" name="WholesaleMasterServicesAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_MasterServicesAgreementMember" name="MasterServicesAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_NumberOfWirelessTowersOwned" name="NumberOfWirelessTowersOwned" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <element id="csal_NumberOfWirelessTowersByOperatingRights" name="NumberOfWirelessTowersByOperatingRights" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <element id="csal_PurchasePriceOfWirelessTowersToBeAcquired" name="PurchasePriceOfWirelessTowersToBeAcquired" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="csal_ObligationsUnderTaxMattersAgreement" name="ObligationsUnderTaxMattersAgreement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="csal_NumberOfTowersAcquired" name="NumberOfTowersAcquired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <element id="csal_NumberOfTowersAdditionalAcquisitionWhenConstructionIsCompleted" name="NumberOfTowersAdditionalAcquisitionWhenConstructionIsCompleted" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <element id="csal_NetworkManagementHoldingsLTDMember" name="NetworkManagementHoldingsLTDMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="csal_BusinessCombinationExpectedClosingPeriod" name="BusinessCombinationExpectedClosingPeriod" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
</schema>
