File 33-57745
Rule 424(b)(2)
PROSPECTUS SUPPLEMENT
(To Prospectus dated September 15, 1999) [GRAPHIC OMITTED]
1,010,784 Shares
AT&T CORP.
Common Stock
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This prospectus supplement relates to 1,010,784 shares of our common stock,
par value $1.00 per share, issued to the shareholders of South Chicago Cable,
Inc., an Illinois corporation ("South Chicago") in connection with our
acquisition of the outstanding shares of stock of South Chicago. We acquired all
of the outstanding shares of South Chicago, effective March 21, 2000, for an
aggregate purchase price of $53,369,395.20 through a merger of our wholly owned
subsidiary, South Chicago Acquisition, Inc., an Illinois corporation into South
Chicago.
Our common stock is quoted on The New York Stock Exchange under the symbol
"T." The last reported sale price of the common stock on The New York Stock
Exchange on March 17, 2000 was $53 3/16 per share.
Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities, or determined if
this prospectus is truthful or complete. Any representation to the contrary is a
criminal offense.
The date of this prospectus supplement is March 21, 2000.
