IDT Corporation (NYSE: IDT, IDT.C) has initiated an offer to exchange
      shares of its outstanding Common Stock (NYSE: IDT.C) for shares of Class
      B Common Stock (NYSE: IDT). For each outstanding share of Common Stock,
      IDT is offering to exchange one share of Class B Common Stock.
    
      As of December 1, 2010, there were 3,728,654 shares of Common Stock
      outstanding. The Company previously stated that the exchange offer is
      being made to address the limited liquidity in the market for the Common
      Stock and the resulting disparity in the trading prices between the two
      classes of Common Stock — despite the fact that the equity rights
      associated with the shares of each class are nearly identical.
    
      Following the completion of the exchange offer, the Common Stock may be
      delisted from the New York Stock Exchange.
    
      Howard Jonas, who controls approximately 76% of the combined voting
      power of IDT’s outstanding capital stock, will adjust his holdings of
      IDT Class A Common Stock and Common Stock so as not to increase his
      combined voting power as a result of the exchange offer.
    
      The exchange offer is made upon the terms and conditions set forth in
      the Offer to Exchange dated December 2, 2010, and the related Letter of
      Transmittal, which have been filed with the Securities and Exchange
      Commission and are being made available to holders of IDT Common Stock
      (see below).
    
      The offer will expire at 5:00 p.m. EST, on Tuesday, January 4, 2011,
      unless extended by IDT. Tenders of shares of Common Stock must be made
      prior to the expiration of the exchange offer and may be withdrawn at
      any time prior to the expiration of the exchange offer.
    
      The consummation of the exchange offer is conditioned on at least
      1,115,970 shares of Common Stock being tendered and not properly
      withdrawn in the exchange offer by IDT stockholders other than Mr. Jonas
      and his affiliates.
    
      This press release is for informational purposes only and is neither an
      offer to purchase nor a solicitation to buy any shares of our Common
      Stock, nor is it a solicitation for acceptance of the exchange offer.
      The exchange is only being made by, and pursuant to, the terms of the
      exchange offer documents, including the Offer to Exchange and the
      related Letter of Transmittal, that IDT is distributing to holders of
      its Common Stock. The Offer to Exchange and the related Letter of
      Transmittal have also been filed today with the SEC as an exhibit to
      IDT’s Schedule TO/Schedule 13E-3 and will be mailed to holders of its
      Common Stock. Those documents contain details of the offer, including
      complete instructions on the exchange process procedure along with the
      transmittal forms and other data.
    
      Holders of our Common Stock should read the exchange offer documents
      because they contain important information. Stockholders can get the
      exchange offer documents without charge from the website of the SEC at www.sec.gov.
    
      Holders of our Common Stock will also be able obtain the exchange offer
      documents from IDT without charge by directing a request to IDT
      Corporation, 520 Broad Street, Newark, New Jersey 07102, Attention: Bill
      Ulrey, Vice President-Investor Relations and External Affairs,
      Telephone: (973) 438-3838.
    
      IDT’s Board of Directors has approved the exchange offer. However,
      neither IDT, nor its Board of Directors, makes any recommendation to any
      stockholder as to whether to tender or refrain from tendering any
      shares. IDT has not authorized any person to make any such
      recommendation.
    
Forward-Looking Statements
In this press release, all statements that are not purely about
      historical facts, including, but not limited to, those in which we use
      the words “believe,” “anticipate,” “expect,” “plan,” “intend,”
      “estimate, “target” and similar expressions, are forward-looking
      statements within the meaning of the Private Securities Litigation
      Reform Act of 1995.While these forward-looking statements
      represent our current judgment of what may happen in the future, actual
      results may differ materially from the results expressed or implied by
      these statements due to numerous important factors, including, but not
      limited to, those described in our most recent report on SEC Form 10-K
      (under the headings “Risk Factors” and “Management’s Discussion and
      Analysis of Financial Condition and Results of Operations”), which may
      be revised or supplemented in subsequent reports on SEC Forms 10-Q and
      8-K.We are under no obligation, and expressly disclaim any
      obligation, to update the forward-looking statements in this press
      release, whether as a result of new information, future events or
      otherwise.
Exchange Offer Statement
This press release is for informational purposes only and is neither
      an offer to buy nor the solicitation of an offer to sell any shares. The
      exchange offer will be made solely by a definitive Offer to Exchange,
      related Letter of Transmittal and other related documents that IDT is
      sending to its holders of Common Stock. Each holder of our Common Stock
      is urged to consult their tax advisor as to the particular tax
      consequences of the exchange offer to such stockholder. The materials
      have been included as exhibits to IDT’s exchange offer statement on
      Schedule TO/ Schedule 13E-3, which was filed with the Securities and
      Exchange Commission. These exchange offer materials contain important
      information that stockholders are urged to read carefully before making
      any decision with respect to the offer. Investors may obtain copies of
      these documents for free from the Securities and Exchange Commission at
      its website (www.sec.gov)
About IDT Corporation:
IDT
      Corporation (www.idt.net)
      is a consumer services company with operations primarily in the
      telecommunications and energy industries. IDT Corporation’s Class B
      Common Stock and Common Stock trade on the New York Stock Exchange under
      the ticker symbols IDT and IDT.C respectively.
    
      IDT Corporation
Investor Relations
Bill Ulrey, 973-438-3838
invest@idt.net