-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 MuIuOLZpI0d+Gu0xBpcvywouBq+TojWQtU9wEKeCzc20Hw9TJL1vF2a7SA9YKOrW
 reiNFeDULJrGOWa7iAI2YA==

<SEC-DOCUMENT>0000950103-05-001431.txt : 20050516
<SEC-HEADER>0000950103-05-001431.hdr.sgml : 20050516
<ACCEPTANCE-DATETIME>20050516104548
ACCESSION NUMBER:		0000950103-05-001431
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050513
FILED AS OF DATE:		20050516
DATE AS OF CHANGE:		20050516

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MCI INC
		CENTRAL INDEX KEY:			0000723527
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE COMMUNICATIONS (NO RADIO TELEPHONE) [4813]
		IRS NUMBER:				581521612
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		500 CLINTON CENTER DRIVE
		CITY:			CLINTON
		STATE:			MS
		ZIP:			39056
		BUSINESS PHONE:		6014605600

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MC INC
		DATE OF NAME CHANGE:	20040420

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WORLDCOM INC
		DATE OF NAME CHANGE:	20000501

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MCI WORLDCOM INC
		DATE OF NAME CHANGE:	19980914

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KATZENBACH NICHOLAS DEB
		CENTRAL INDEX KEY:			0001285118

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10415
		FILM NUMBER:		05831935

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		6099248536

	MAIL ADDRESS:	
		STREET 1:		33 GREENHOUSE DR
		CITY:			PRINCETON
		STATE:			NJ
		ZIP:			08540
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>katzenbach_ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-05-13</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000723527</issuerCik>
        <issuerName>MCI INC</issuerName>
        <issuerTradingSymbol>MCIP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001285118</rptOwnerCik>
            <rptOwnerName>KATZENBACH NICHOLAS DEB</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MCI, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>22001 LOUDOUN COUNTY PARKWAY</rptOwnerStreet2>
            <rptOwnerCity>ASHBURN</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>20147</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-05-13</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1353.879</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>25.39</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6685.427</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/ Jennifer C. McGarey as Authorized Signatory for Nicholas deB. Katzenbach</signatureName>
        <signatureDate>2005-05-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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