<SUBMISSION>
<ACCESSION-NUMBER>0000898318-03-000028
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20030610
<FILING-DATE>20030825
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>MOSTAFA ASGHAR D
<CIK>0001133106
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>333-40624
<FILM-NUMBER>03864388
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>956 BELLVIEW ROAD
<STREET2>C/O MOSTAFA INVESTMENTS
<CITY>MCLEAN
<STATE>VA
<ZIP>22102
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>956 BELLVIEW ROAD
<STREET2>C/O MOSTAFA INVESTMENTS
<CITY>MCLEAN
<STATE>VA
<ZIP>22102
</MAIL-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>ADVANCED SWITCHING COMMUNICATIONS INC
<CIK>0001095583
<ASSIGNED-SIC>3661
<IRS-NUMBER>541865834
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>8330 BOONE BLVD 5TH FL
<CITY>VIENNA
<STATE>VA
<ZIP>22182
<PHONE>7034485540
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>8330 BOONE BOULEVARD 5TH FL
<CITY>VIENNA
<STATE>VA
<ZIP>22182
</MAIL-ADDRESS>
</ISSUER>
<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>2003-06-10</periodOfReport>


    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001095583</issuerCik>
        <issuerName>ADVANCED SWITCHING COMMUNICATIONS INC</issuerName>
        <issuerTradingSymbol>ASCX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001133106</rptOwnerCik>
            <rptOwnerName>MOSTAFA ASGHAR D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>956 BELLVIEW ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>C/O MOSTAFA INVESTMENTS</rptOwnerStreet2>
            <rptOwnerCity>MCLEAN</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>22102</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Former President &amp; Former CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>

        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.0025 par value per share</value>
            </securityTitle>
            <transactionDate>
                <value>2003-06-10</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value>E</value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>8000000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>_</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>

        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.0025 par value per share</value>
            </securityTitle>
            <transactionDate>
                <value>2003-06-10</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value>E</value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2621835</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>_</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>

    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The reporting person disposed Common Stock pursuant to the Company's Liquidating Trust Agreement, dated as of June 10, 2003, pursuant to which each of the Company's stockholders automatically became the holder of one unit of beneficial interest in the Liquidating Trust for each share of the Company common stock then held of record by such stock holder.  All outstanding Company shares were automatically deemed canceled.</footnote>
        <footnote id="F2">Includes 8,000,000 shares owned by Mostafa Limited Partnership, an investment partnership controlled by Asghar D. Mostafa, and 2,621,835 shares owned by Mostafa Ventures Fund, LLC, an investment limited liability company controlled by Asghar D. Mostafa.  Excludes shares owned by Mr. Mostafa's brother, Iraj Mostafa, an employee of Advanced Switching Communications, Inc. through April 6, 2002.</footnote>
    </footnotes>


    <ownerSignature>
        <signatureName>A. Mostafa</signatureName>
        <signatureDate>2003-08-25</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
