IDT Corporation (NYSE: IDT, IDT.C) today extended the expiration date of
      its previously announced exchange offer of its outstanding Common Stock
      (NYSE: IDT.C) for shares of Class B Common Stock (NYSE: IDT).
    
      The deadline for tendering shares of Common Stock in the exchange offer
      has been extended from 5:00 p.m. EST, on Tuesday, January 4, 2011, to
      5:00 p.m. EST, on Tuesday, January 18, 2011.
    
      IDT is extending the offer to exchange for the following reasons: (i)
      today it filed with the Securities and Exchange Commission a revised
      Offer to Exchange revising its disclosure previously set forth in the
      Offer to Exchange and mailed to stockholders in order to respond to
      comments received from the SEC; (ii) there were logistic issues in
      mailing the exchange offer materials to stockholders and IDT wants to
      ensure that all holders have sufficient time to read the materials, make
      their determinations and tender if they so desire; and (iii) IDT
      recognizes that stockholders may be away during the upcoming holiday
      season and therefore may be unable to tender their shares prior to the
      original expiration date.
    
      IDT Corporation has been advised that as of 5:00 p.m., EST, on December
      20, 2010 approximately 696 shares of its Common Stock had been tendered
      in the exchange offer. Tenders of shares of Common Stock must be made,
      and may be withdrawn, at any time prior to the expiration of the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 revised as of December
      20, 2010, and the related Letter of Transmittal, which have been filed
      with the Securities and Exchange Commission.
    
      Holders of our Common Stock should read the exchange offer documents as
      revised because they contain important information. Stockholders can get
      the exchange offer documents without charge from the website of the SEC
      at www.sec.gov.
    
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