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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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 uhb5VG/KSE9LmuBIofbu7Q==

<SEC-DOCUMENT>0001237675-04-000001.txt : 20040105
<SEC-HEADER>0001237675-04-000001.hdr.sgml : 20040105
<ACCEPTANCE-DATETIME>20040105143853
ACCESSION NUMBER:		0001237675-04-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031231
FILED AS OF DATE:		20040105

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALASKA COMMUNICATIONS SYSTEMS GROUP INC
		CENTRAL INDEX KEY:			0001089511
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE COMMUNICATIONS (NO RADIO TELEPHONE) [4813]
		IRS NUMBER:				522126573
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		600 TELEPHONE AVENUE
		STREET 2:		-
		CITY:			ANCHORAGE
		STATE:			AK
		ZIP:			99503
		BUSINESS PHONE:		9072973000

	MAIL ADDRESS:	
		STREET 1:		600 TELEPHONE AVENUE
		STREET 2:		-
		CITY:			ANCHORAGE
		STATE:			AK
		ZIP:			99503

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALEC HOLDINGS INC
		DATE OF NAME CHANGE:	19990624

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SPRAIN KENNETH L
		CENTRAL INDEX KEY:			0001237675

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-28167
		FILM NUMBER:		04503942

	BUSINESS ADDRESS:	
		STREET 1:		600 TELEPHONE AVENUE
		CITY:			ANCHORAGE
		STATE:			AL
		ZIP:			99503
		BUSINESS PHONE:		9072973000

	MAIL ADDRESS:	
		STREET 1:		600 TELELPHONE AVENUE
		CITY:			ANCHORAGE
		STATE:			AL
		ZIP:			99503
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>

<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2003-12-31</periodOfReport>


    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001089511</issuerCik>
        <issuerName>ALASKA COMMUNICATIONS SYSTEMS GROUP INC</issuerName>
        <issuerTradingSymbol>ALSK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001237675</rptOwnerCik>
            <rptOwnerName>SPRAIN KENNETH L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>600 TELELPHONE AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ANCHORAGE</rptOwnerCity>
            <rptOwnerState>AK</rptOwnerState>
            <rptOwnerZipCode>99503</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Sr VP of Operations</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>

        <nonDerivativeTransaction>
            <securityTitle>
                <value>Alaska Communications Systems Group, Inc. Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2003-12-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>866.52</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.0005</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1166.52</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>

    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Stock purchase under Alaska Communications Systems Group, Inc. Employee Stock Purchase Plan</footnote>
        <footnote id="F2">In addition to the 1,166.52 shares directly owned by me, my son owns 100 shares of Alaska Communications Systems Group, Inc. Common Stock.</footnote>
    </footnotes>


    <ownerSignature>
        <signatureName>Kenneth L. Sprain</signatureName>
        <signatureDate>2004-01-05</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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