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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,
 HQHZByhaL4JUxk7Qv9bzxT2DhjK0aixc9+Agx+KlVfDY8F8KbUwkmRDlH3ef23kw
 ULq5EY2mz8tUno4iVSFYIg==

<SEC-DOCUMENT>0001181431-03-035331.txt : 20031212
<SEC-HEADER>0001181431-03-035331.hdr.sgml : 20031212
<ACCEPTANCE-DATETIME>20031212121127
ACCESSION NUMBER:		0001181431-03-035331
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031211
FILED AS OF DATE:		20031212

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GREENSTEIN IRA A
		CENTRAL INDEX KEY:			0001228161

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-16371
		FILM NUMBER:		031051101

	MAIL ADDRESS:	
		STREET 1:		IDT CORP
		STREET 2:		520 BROAD STREET
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			IDT CORP
		CENTRAL INDEX KEY:			0001005731
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE COMMUNICATIONS (NO RADIO TELEPHONE) [4813]
		IRS NUMBER:				223415036
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0731

	BUSINESS ADDRESS:	
		STREET 1:		520 BROAD ST
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102
		BUSINESS PHONE:		973 438 1000

	MAIL ADDRESS:	
		STREET 1:		520 BROAD STREET
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd25515.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-12-11</periodOfReport><notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0001005731</issuerCik>
        <issuerName>IDT CORP</issuerName>
        <issuerTradingSymbol>IDT/IDT.C</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001228161</rptOwnerCik>
            <rptOwnerName>GREENSTEIN IRA A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O IDT CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>520 BROAD STREET</rptOwnerStreet2>
            <rptOwnerCity>NEWARK</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07102</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>Class B Common Stock, par value $.01 per share</value></securityTitle><transactionDate><value>2003-12-11</value><footnoteId id="F1"/></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>34900</value></transactionShares><transactionPricePerShare><value>12.06</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>0</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value><
/directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeTransaction><securityTitle><value>Class B Common Stock, par value $.01 per share</value></securityTitle><transactionDate><value>2003-12-11</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>34900</value></transactionShares><transactionPricePerShare><value>19.6062</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>0</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeHolding><securityTitle><value>Common Stock, par value $.01 per share</value
></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>815</value><footnoteId id="F2"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>By 401(k) Plan</value></natureOfOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><derivativeTable><derivativeTransaction><securityTitle><value>Employee Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>12.06</value></conversionOrExercisePrice><transactionDate><value>2003-12-11</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>2400</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquir
edDisposedCode></transactionAmounts><exerciseDate><value>2002-05-01</value></exerciseDate><expirationDate><value>2011-12-12</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Class B Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>2400</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>0</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeTransaction><derivativeTransaction><securityTitle><value>Employee Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>12.06</value></conversionOrExercisePrice><transactionDate><value>2003-12-11</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionA
mounts><transactionShares><value>16250</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2002-08-01</value></exerciseDate><expirationDate><value>2011-12-12</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Class B Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>16250</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>0</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeTransaction><derivativeTransaction><securityTitle><value>Employee Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>12.06</value></conversionOrExercisePrice><transactionDate><value>2003-1
2-11</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>16250</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2002-11-01</value></exerciseDate><expirationDate><value>2011-12-12</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Class B Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>16250</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>0</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeTransaction></deri
vativeTable><footnotes><footnote id="F1">The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on July 16, 2003.</footnote><footnote id="F2">As of November 30, 2003</footnote></footnotes><ownerSignature><signatureName>Joyce J. Mason, by Power of Attorney</signatureName><signatureDate>2003-12-12</signatureDate></ownerSignature></ownershipDocument>



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</SEC-DOCUMENT>
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