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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>0001181431-06-060252.txt : 20061030
<SEC-HEADER>0001181431-06-060252.hdr.sgml : 20061030
<ACCEPTANCE-DATETIME>20061030165512
ACCESSION NUMBER:		0001181431-06-060252
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20061011
FILED AS OF DATE:		20061030
DATE AS OF CHANGE:		20061030

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			JONES PAUL TUDOR II
		CENTRAL INDEX KEY:			0001270196

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-16805
		FILM NUMBER:		061172653

	MAIL ADDRESS:	
		STREET 1:		C/O TUDOR INVESTMENT CORP
		STREET 2:		1275 KING ST
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06831

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TUDOR INVESTMENT CORP ET AL
		CENTRAL INDEX KEY:			0000923093

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-16805
		FILM NUMBER:		061172654

	BUSINESS ADDRESS:	
		STREET 1:		1275 KING STREET
		STREET 2:		2ND FLOOR
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06831-2936

	MAIL ADDRESS:	
		STREET 1:		1275 KING STREET
		STREET 2:		2ND FLOOR
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06831-2936

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RCN CORP /DE/
		CENTRAL INDEX KEY:			0001041858
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE COMMUNICATIONS (NO RADIO TELEPHONE) [4813]
		IRS NUMBER:				223498533
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		196 VAN BUREN STREET
		CITY:			HERNDON
		STATE:			VA
		ZIP:			20170
		BUSINESS PHONE:		7034348200

	MAIL ADDRESS:	
		STREET 1:		196 VAN BUREN STREET
		CITY:			HERNDON
		STATE:			VA
		ZIP:			20170
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd133786.xml
<DESCRIPTION>RCN FORM 4 10-23-06
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-10-11</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001041858</issuerCik>
        <issuerName>RCN CORP /DE/</issuerName>
        <issuerTradingSymbol>RCNIV</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000923093</rptOwnerCik>
            <rptOwnerName>TUDOR INVESTMENT CORP ET AL</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ATTN:  STEPHEN N. WALDMAN</rptOwnerStreet1>
            <rptOwnerStreet2>1275 KING STREET</rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06831-2936</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001270196</rptOwnerCik>
            <rptOwnerName>JONES PAUL TUDOR II</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TUDOR INVESTMENT CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>1275 KING STREET</rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06831-2936</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Chairman of Tudor</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2006-10-11</value>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>125307</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>7173512</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnotes</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">This Form 4 filing is being filed voluntarily to update the number of shares held by the reporting persons.</footnote>
        <footnote id="F2">On October 11, 2006 RCN Corporation (the &quot;Company&quot;) released additional shares of Common Stock that were previously held back in escrow at the time of the Company's reorganization in December 2004.  As a result, The Tudor BVI Global Portfolio Ltd. (&quot;BVI&quot;), The Raptor Global Portfolio Ltd. (&quot;Raptor&quot;), The Altar Rock Fund L.P. (&quot;Altar Rock&quot;), and Tudor Proprietary Trading, L.L.C. (&quot;TPT&quot;) received the following escrowed shares, respectively:  20,603, 92,649, 1,017, and 11,038.</footnote>
        <footnote id="F3">Tudor Investment Corporation (&quot;TIC&quot;) is the investment adviser, trading advisor, or general partner to each of BVI, Raptor, and Altar Rock, and is an affiliate of TPT.  TIC disclaims beneficial ownership of the securities reported herein as indirectly owned except to the extent of its pecuniary interest in such securities.</footnote>
        <footnote id="F4">The Common Stock (the &quot;Shares) are reported herein as indirectly beneficially owned by Paul Tudor Jones II, and certain of the Shares are owned indirectly by TIC (see Footnote 3).  The Shares are owned directly by BVI (1,179,555 Shares), Raptor (5,303,727 Shares), Altar Rock (58,290 Shares), and TPT (631,940 Shares).  Because Mr. Jones is the controlling shareholder of TIC and the indirect controlling equity holder of TPT, Mr. Jones may be deemed to beneficially own the Shares deemed beneficially owned by each of such entities.  Mr. Jones expressly disclaims such beneficial ownership.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>TUDOR INVESTMENT CORPORATION by /s/ Stephen N. Waldman, Managing Director</signatureName>
        <signatureDate>2006-10-30</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Paul Tudor Jones II</signatureName>
        <signatureDate>2006-10-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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