-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 EsCUSjlF5ZW03IIDIjKaaJw1PYquWRhZP18GzX40HrZ7to3YrwvqlKHJjfH9v1CK
 dAjD+RJB5N6Sdl9kUXvt+g==

<SEC-DOCUMENT>0001084048-04-000039.txt : 20041104
<SEC-HEADER>0001084048-04-000039.hdr.sgml : 20041104
<ACCEPTANCE-DATETIME>20041104145749
ACCESSION NUMBER:		0001084048-04-000039
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20041104
FILED AS OF DATE:		20041104
DATE AS OF CHANGE:		20041104

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			JARUS SCOTT M
		CENTRAL INDEX KEY:			0001198457

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-25965
		FILM NUMBER:		041119392

	BUSINESS ADDRESS:	
		STREET 1:		244 MADISON AVE.
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10016

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			J2 GLOBAL COMMUNICATIONS INC
		CENTRAL INDEX KEY:			0001084048
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEGRAPH & OTHER MESSAGE COMMUNICATIONS [4822]
		IRS NUMBER:				510371142
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		6922 HOLLYWOOD BLVD
		STREET 2:		SUITE 900 5TH FLOOR
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90028
		BUSINESS PHONE:		3238609200

	MAIL ADDRESS:	
		STREET 1:		6922 HOLLYWOOD BLVD
		STREET 2:		SUITE 900
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90028

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	JFAX COM INC
		DATE OF NAME CHANGE:	19990413
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2004-11-04</periodOfReport>

    <dateOfOriginalSubmission>2004-11-02</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001084048</issuerCik>
        <issuerName>J2 GLOBAL COMMUNICATIONS INC</issuerName>
        <issuerTradingSymbol>JCOM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001198457</rptOwnerCik>
            <rptOwnerName>JARUS SCOTT M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O J2 GLOBAL COMMUNICATIONS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>6922 HOLLYWOOD BLVD., STE. 500</rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90028</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.01 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2004-11-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>217</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>22.96</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1184</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Purchased under the Issuer's 2001 Employee Stock Purchase Plan and exempt from short-swing profit recovery provision of Section 16(b) of the Securities Exchange Act of 1934 under Rule 16b-3.</footnote>
        <footnote id="F2">No transaction is reported on this Form 4/A. This Form 4/A amends the Form 4s filed by Mr. Jarus on October 22, 2004 and November 3, 2004 in order to correct a clerical error made on Table I, Section 5, of both filings.  The amount of securities beneficially owned by Mr. Jarus following the transactions reported on those Form 4s should have been 967 (for the October 22, 2004 filing) and 1184 (for the November 3, 2004 filing) rather than the amount reflected on those filings.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Scott M. Jarus</signatureName>
        <signatureDate>2004-11-04</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----