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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001405278-07-000002.txt : 20070706
<SEC-HEADER>0001405278-07-000002.hdr.sgml : 20070706
<ACCEPTANCE-DATETIME>20070706104018
ACCESSION NUMBER:		0001405278-07-000002
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070629
FILED AS OF DATE:		20070706
DATE AS OF CHANGE:		20070706

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MEDIACOM COMMUNICATIONS CORP
		CENTRAL INDEX KEY:			0001098659
		STANDARD INDUSTRIAL CLASSIFICATION:	CABLE & OTHER PAY TELEVISION SERVICES [4841]
		IRS NUMBER:				061566067
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		100 CRYSTAL RUN ROAD
		CITY:			MIDDLETOWN
		STATE:			NY
		ZIP:			10941
		BUSINESS PHONE:		9146952600

	MAIL ADDRESS:	
		STREET 1:		100 CRYSTAL RUN ROAD
		CITY:			MIDDELTOWN
		STATE:			NY
		ZIP:			10941

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Shivers Investments, LLC
		CENTRAL INDEX KEY:			0001405708
		STATE OF INCORPORATION:			GA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-29227
		FILM NUMBER:		07966583

	BUSINESS ADDRESS:	
		STREET 1:		725 BROAD STREET
		CITY:			AUGUSTA
		STATE:			GA
		ZIP:			30904
		BUSINESS PHONE:		706-823-3527

	MAIL ADDRESS:	
		STREET 1:		725 BROAD STREET
		CITY:			AUGUSTA
		STATE:			GA
		ZIP:			30904

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Shivers Trading & Operating CO
		CENTRAL INDEX KEY:			0001405688
		STATE OF INCORPORATION:			GA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-29227
		FILM NUMBER:		07966584

	BUSINESS ADDRESS:	
		STREET 1:		725 BROAD STREET
		CITY:			AUGUSTA
		STATE:			GA
		ZIP:			30909
		BUSINESS PHONE:		706-823-3527

	MAIL ADDRESS:	
		STREET 1:		725 BROAD STREET
		CITY:			AUGUSTA
		STATE:			GA
		ZIP:			30909

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Morris Communications Holding Company, LLC
		CENTRAL INDEX KEY:			0001405278
		STATE OF INCORPORATION:			GA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-29227
		FILM NUMBER:		07966585

	BUSINESS ADDRESS:	
		STREET 1:		725 BROAD STREET
		CITY:			AUGUSTA
		STATE:			GA
		ZIP:			30909
		BUSINESS PHONE:		706-823-3527

	MAIL ADDRESS:	
		STREET 1:		725 BROAD STREET
		CITY:			AUGUSTA
		STATE:			GA
		ZIP:			30909
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2007-06-29</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001098659</issuerCik>
        <issuerName>MEDIACOM COMMUNICATIONS CORP</issuerName>
        <issuerTradingSymbol>MCCC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001405278</rptOwnerCik>
            <rptOwnerName>Morris Communications Holding Company, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>725 BROAD STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>AUGUSTA</rptOwnerCity>
            <rptOwnerState>GA</rptOwnerState>
            <rptOwnerZipCode>30901</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001405688</rptOwnerCik>
            <rptOwnerName>Shivers Trading &amp; Operating CO</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>725 BROAD STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>AUGUSTA</rptOwnerCity>
            <rptOwnerState>GA</rptOwnerState>
            <rptOwnerZipCode>30901</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001405708</rptOwnerCik>
            <rptOwnerName>Shivers Investments, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>725 BROAD STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>AUGUSTA</rptOwnerCity>
            <rptOwnerState>GA</rptOwnerState>
            <rptOwnerZipCode>30901</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>28309674</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>(2)</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These shares are owned directly by Shivers Investments, LLC, which is a wholly owned subsidiary of Morris Communications Holding Company, LLC (&quot;Holding&quot;), which is a wholly owned subsidiary of Shivers Trading &amp; Operating Company (&quot;STO&quot;). Holding and STO are indirect beneficial owners of the reported securities.</footnote>
    </footnotes>

    <remarks>(2) Morris Communications Company, LLC, formerly Morris Communicatons Corp.(&quot;MCC&quot;), is a wholly owned subsidiary of Holding. On June 29, 2007, MCC distributed 100% of its membership interest in Shivers Investments, LLC to Holding, with no consideration. As a result, Shivers Investments, LLC is now wholly owned by Holding, and both MCC and Shivers Investments, LLC are &quot;brother-sister&quot; subsidiaries of Holding. Shivers Investments, LLC directly owns 28,309,674 shares of Class A Common Stock of Mediacom Communications Company. After this transaction, MCC no longer beneficially owns these securities, although the ultimate beneficial ownership of these securities has not changed, since each of STO, Holding, Shivers Investments, LLC and MCC are still controlled by William S. Morris and his wife.</remarks>

    <ownerSignature>
        <signatureName>Craig S. Mitchell- Senior Vice President-Finance</signatureName>
        <signatureDate>2007-07-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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