<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2004-09-20</periodOfReport>

    <dateOfOriginalSubmission>2004-09-22</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000006383</issuerCik>
        <issuerName>MOSCOW CABLECOM CORP</issuerName>
        <issuerTradingSymbol>MOCC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001282187</rptOwnerCik>
            <rptOwnerName>MOSCOW TELECOMMUNICATIONS CORP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O KATHRYN BELLER, ESQ.</rptOwnerStreet1>
            <rptOwnerStreet2>40 HIGH WAY</rptOwnerStreet2>
            <rptOwnerCity>CHAPPAQUA</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10514</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001282713</rptOwnerCik>
            <rptOwnerName>PRIPACHKIN YURI</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1></rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity></rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode></rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Chairman-Moskovskaya Telecomm</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2004-09-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>220879</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4220879</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On September 20, 2004, Moscow CableCom Corp. issued 220,879 shares of its Common Stock, par value $0.01 per share, to Moskovskaya Telecommunikationnaya Korporatsiya (COMCOR) in exchange for 2,121 shares of the preferred stock of ZAO Comcor-TV (CCTV), a subsidiary of the issuer.  COMCOR had recently acquired these shares of preferred stock in satisfaction of a liability of CCTV to COMCOR of approximately $1,380,000.  The issuance of shares was reported on a Form 8-K of the issuer filed on September 20, 2004, which report is incorporated herein by reference. This report is filed to correct the identification of CCTV as a subsidiary of the issuer rather than COMCOR.</footnote>
    </footnotes>

    <remarks>Additional Reporting Person:  Yuri Pripachkin, c/o Moskovskaya Telecommunikatsionnaya Korporatsiya, Neglinnaya, 17/2, Moscow 127051, Russia.  Mr. Pripachkin is the chairman of the board of directors of COMCOR.  Through indirect ownership of equity interests in COMCOR, Mr. Pripachkin may be deemed to control COMCOR.  As a result, Mr. Pripachkin may be deemed to own beneficially and indirectly the 4,220,879 shares of Common Stock of the issuer held by COMCOR.  Pursuant to Rule 16a-1(a)(4) promulgated under the Securities Exchange Act of 1934, the filing of this Form 4 shall not be construed as an admission by Mr. Pripachkin that he beneficially owns the 4,220,879 shares of Common Stock held by COMCOR.
Authorization of Signatory:  COMCOR is an open joint stock company organized under the laws of the Russian Federation.  Evidence of the authority to sign of the representative who is signing this Form 4 on behalf of COMCOR and Mr. Pripachkin is attached.</remarks>

    <ownerSignature>
        <signatureName>/s/ Kathryn Beller, Attorney-in-Fact</signatureName>
        <signatureDate>2004-09-22</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Yuri I. Pripachkin</signatureName>
        <signatureDate>2004-09-22</signatureDate>
    </ownerSignature>
</ownershipDocument>

