-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 Qe6BUYqqO3f70nd91dnhcO5JXapD00z6Qu/8WpeuwyoEPGBOiWi1E2NaUlhbvQdi
 n1CrPbPGPtewCYc/xHaTHA==

<SEC-DOCUMENT>0000947871-09-000728.txt : 20091112
<SEC-HEADER>0000947871-09-000728.hdr.sgml : 20091111
<ACCEPTANCE-DATETIME>20091112124359
ACCESSION NUMBER:		0000947871-09-000728
CONFORMED SUBMISSION TYPE:	D/A
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
FILED AS OF DATE:		20091112
DATE AS OF CHANGE:		20091112
EFFECTIVENESS DATE:		20091112

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AC HOLDCO LLC
		CENTRAL INDEX KEY:			0001426930
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-114689
		FILM NUMBER:		091175764

	BUSINESS ADDRESS:	
		STREET 1:		1250 N. Arlington Heights Rd., Ste. 500
		CITY:			Itasca
		STATE:			IL
		ZIP:			60143
		BUSINESS PHONE:		630-647-1400

	MAIL ADDRESS:	
		STREET 1:		1250 N. Arlington Heights Rd., Ste. 500
		CITY:			Itasca
		STATE:			IL
		ZIP:			60143
</SEC-HEADER>
<DOCUMENT>
<TYPE>D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0603</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001426930</cik>
        <entityName>AC HOLDCO LLC</entityName>
        <issuerAddress>
            <street1>1250 North Arlington Heights Road</street1>
            <street2>Suite 500</street2>
            <city>Itasca</city>
            <stateOrCountry>IL</stateOrCountry>
            <zipCode>60143</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>630-647-1400</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Limited Liability Company</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2006</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Ron</firstName>
                <lastName>LeMay</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>One Rockefeller Plaza, 32nd Floor</street1>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10020</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Lawrence</firstName>
                <lastName>Lavine</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>One Rockefeller Plaza, 32nd Floor</street1>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10020</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Christopher</firstName>
                <lastName>Minnetian</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>One Rockefeller Plaza, 32nd Floor</street1>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10020</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Donald</firstName>
                <lastName>Wagner</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>One Rockefeller Plaza, 32nd Floor</street1>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10020</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Oakleigh</firstName>
                <lastName>Thorne</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>270 Westminster</street1>
                <city>Lake Forest</city>
                <stateOrCountry>IL</stateOrCountry>
                <zipCode>60045</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Jack</firstName>
                <lastName>Blumenstein</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1250 North Arlington Heights Rd.</street1>
                <street2>Suite 500</street2>
                <city>Itasca</city>
                <stateOrCountry>IL</stateOrCountry>
                <zipCode>60143</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Robert</firstName>
                <lastName>Crandall</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1250 North Arlington Heights Rd.</street1>
                <street2>Suite 500</street2>
                <city>Itasca</city>
                <stateOrCountry>IL</stateOrCountry>
                <zipCode>60143</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Reid</firstName>
                <lastName>Simpson</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1250 North Arlington Heights Rd.</street1>
                <street2>Suite 500</street2>
                <city>Itasca</city>
                <stateOrCountry>IL</stateOrCountry>
                <zipCode>60143</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Marguerite</firstName>
                <lastName>Elias</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1250 North Arlington Heights Rd.</street1>
                <street2>Suite 500</street2>
                <city>Itasca</city>
                <stateOrCountry>IL</stateOrCountry>
                <zipCode>60143</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Telecommunications</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>0000947871-09-000551</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2009-10-27</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>true</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isDebtType>true</isDebtType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>75000000</totalOfferingAmount>
            <totalAmountSold>75000000</totalAmountSold>
            <totalRemaining>0</totalRemaining>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>4</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>AC HOLDCO LLC</issuerName>
                <signatureName>/s/ Reid Simpson</signatureName>
                <nameOfSigner>Reid Simpson</nameOfSigner>
                <signatureTitle>Executive Vice President &amp; Chief Financial Officer</signatureTitle>
                <signatureDate>2009-11-12</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----