<ARTICLE> 5 <LEGEND> This schedule contains summary financial information extracted from the unaudited consolidated balance sheet of AT&T Corp. at September 30, 1999, and the unaudited consolidated statement of income for the nine-month period ended September 30, 1999, and is qualified in its entirety by reference to such financial statements. </LEGEND> <MULTIPLIER> 1,000,000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> SEP-30-1999 <CASH> 0 <SECURITIES> 0 <RECEIVABLES> 12,117 <ALLOWANCES> 1,488 <INVENTORY> 0 <CURRENT-ASSETS> 13,040 <PP&E> 65,361 <DEPRECIATION> 28,886 <TOTAL-ASSETS> 161,806 <CURRENT-LIABILITIES> 23,515 <BONDS> 22,073 <PREFERRED-MANDATORY> 6,346 <PREFERRED> 0 <COMMON> 4,461 <OTHER-SE> 70,302 <TOTAL-LIABILITY-AND-EQUITY> 161,806 <SALES> 0 <TOTAL-REVENUES> 46,057 <CGS> 0 <TOTAL-COSTS> 37,639 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 1,077 <INTEREST-EXPENSE> 1,108 <INCOME-PRETAX> 6,158 <INCOME-TAX> 2,679 <INCOME-CONTINUING> 3,479 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 3,479 <EPS-BASIC> 1.41 <EPS-DILUTED> 1.39