EXHIBIT 99.2

                         NOTICE OF GUARANTEED DELIVERY
                                 FOR TENDER OF
                    6.50% SENIOR NOTES DUE NOVEMBER 15, 2006
                    7.30% SENIOR NOTES DUE NOVEMBER 15, 2001
                    8.00% SENIOR NOTES DUE NOVEMBER 15, 2031
                                       OF
                                   AT&T CORP.

    This Notice of Guaranteed Delivery or one substantially equivalent hereto
must be used to accept the Exchange Offer (as defined below) if
(i) certificates for the Company's (as defined below) 6.50% Senior Notes due
November 15, 2006, 7.30% of Senior Notes due November 15, 2011 and 8.00% Senior
Notes due November 15, 2031 (the "Old Notes") are not immediately available,
(ii) Old Notes and the Letter of Transmittal cannot be delivered to The Bank of
New York (the "Exchange Agent") on or prior to the Expiration Date (as defined
in the Prospectus referred to below) or (iii) the procedures for book-entry
transfer cannot be completed on a timely basis. This Notice of Guaranteed
Delivery may be delivered by hand or sent by facsimile transmission, overnight
courier, telex, telegram or mail to the Exchange Agent. See "The Exchange
Offer--Guaranteed Delivery Procedures" in the Prospectus dated [Date of
Prospectus] (which, together with the related Letter of Transmittal, constitutes
the "Exchange Offer") of AT&T CORP., a New York corporation (the "Company").

                 THE EXCHANGE AGENT FOR THE EXCHANGE OFFER IS:

                              The Bank of New York

                                                         
BY HAND OR OVERNIGHT DELIVERY:    FACSIMILE TRANSMISSIONS:     BY REGISTERED OR CERTIFIED MAIL:
     The Bank of New York       (Eligible Institutions Only)         The Bank of New York
   5 Penn Plaza, 16th Floor         ***Exchange Agent Fax          5 Penn Plaza, 16th Floor
   New York, New York 10001               Number***                New York, New York 10001
 ***over hand street address       To Confirm by Telephone      Attn: ***Name of Exchange Agent
     of exchange agent***         or for Information Call:                Contact***
***over hand city of exchange         ***Exchange agent
 agent***, ***over hand state        telephone number***
 address of exchange agent***
   ***over hand zipcode of
      exchange agent***
  Attn: ***Name of Exchange
       Agent Contact***



    DELIVERY OF THIS NOTICE OF GUARANTEED DELIVERY TO AN ADDRESS OTHER THAN AS
SET FORTH ABOVE OR TRANSMISSION OF THIS NOTICE OF GUARANTEED DELIVERY VIA A
FACSIMILE TRANSMISSION TO A NUMBER OTHER THAN AS SET FORTH ABOVE WILL NOT
CONSTITUTE A VALID DELIVERY.

    THIS NOTICE OF GUARANTEED DELIVERY IS NOT TO BE USED TO GUARANTEE
SIGNATURES. IF A SIGNATURE ON A LETTER OF TRANSMITTAL IS REQUIRED TO BE
GUARANTEED BY AN "ELIGIBLE INSTITUTION" UNDER THE INSTRUCTIONS THERETO, SUCH
SIGNATURE GUARANTEE MUST APPEAR IN THE APPLICABLE SPACE PROVIDED ON THE LETTER
OF TRANSMITTAL.

                   THE FOLLOWING GUARANTEE MUST BE COMPLETED
                             GUARANTEE OF DELIVERY
                    (NOT TO BE USED FOR SIGNATURE GUARANTEE)

    The undersigned, a firm which is a member of a registered national
securities exchange or a member of the National Association of Securities
Dealers, Inc. or a commercial bank or trust company having an office or
correspondent in the United States, hereby guarantees to deliver to the Exchange
Agent, at one of its addresses set forth above, either the certificates for all
physically tendered Old Notes, in proper form for transfer, or confirmation of
the book-entry transfer of such Old Notes to the Exchange Agent's account at The
Depository Trust Company ("DTC"), pursuant to the procedures for book-entry
transfer set forth in the Prospectus, in either case together with any other
documents required by the Letter of Transmittal, within three New York Stock
Exchange trading days after the date of execution of this Notice of Guaranteed
Delivery.

    The undersigned acknowledges that it must deliver the Old Notes tendered
hereby to the Exchange Agent within the time period set forth above and that
failure to do so could result in a financial loss to the undersigned.

                                       
Name of Firm:
----------------------------------------  ----------------------------------------
                                          (Authorized Signature)

Address:                                  Title:
----------------------------------------  ----------------------------------------

                                          Name:
                                          ----------------------------------------
----------------------------------------
                              (Zip Code)           (Please type or print)

Area Code and Telephone Number:           Date:
                                          ----------------------------------------

----------------------------------------



    NOTE: DO NOT SEND OLD NOTES WITH THIS NOTICE OF GUARANTEED DELIVERY. ACTUAL
SURRENDER OF OLD SECURITIES MUST BE MADE PURSUANT TO, AND BE ACCOMPANIED BY, A
PROPERLY COMPLETED AND FULLY EXECUTED LETTER OF TRANSMITTAL AND ANY OTHER
REQUIRED DOCUMENTS.

                                       2