Exhibit (21) List of Subsidiaries of AT&T Corp. As of 1/31/96 Jurisdiction of Incorporation Alascom, Inc. .................................................Alaska Actuarial Sciences Associates, Inc. ...........................Delaware American Transtech, Inc. ......................................Delaware AT&T Capital Corporation ......................................Delaware AT&T Communications, Inc. .....................................Delaware AT&T Communications of California, Inc. .......................California AT&T Communications of Delaware, Inc. .........................Delaware AT&T Communications of Hawaii, Inc. ...........................Hawaii AT&T Communications of Illinois, Inc. .........................Illinois AT&T Communications of Indiana, Inc. ..........................Indiana AT&T Communications of Maryland, Inc. .........................Maryland AT&T Communications of Michigan, Inc. .........................Michigan AT&T Communications of the Midwest, Inc. ......................Iowa AT&T Communications of the Mountain States, Inc. ..............Colorado AT&T Communications of Nevada, Inc. ...........................Nevada AT&T Communications of New England, Inc. ......................New York AT&T Communications of New Hampshire, Inc. ....................New Hampshire AT&T Communications of New Jersey, Inc. .......................New Jersey AT&T Communications of New York, Inc. .........................New York AT&T Communications of Ohio, Inc. .............................Ohio AT&T Communications of the Pacific Northwest, Inc. ............Washington AT&T Communications of Pennsylvania, Inc. .....................Pennsylvania AT&T Communications of the South Central States, Inc. .........Delaware AT&T Communications of the Southern States, Inc. ..............New York AT&T Communications of the Southwest, Inc. ....................Delaware AT&T Communications of Virginia, Inc. .........................Virginia AT&T Communications of Washington, D.C. Inc. ..................New York AT&T Communications of West Virginia, Inc. ....................West Virginia AT&T Communications of Wisconsin, Inc. ........................Wisconsin AT&T Credit Corporation .......................................Delaware AT&T Istel....... .............................................United Kingdom AT&T Microelectronica de Espana S.A. ..........................Spain AT&T Nassau Metals Corporation ................................New York AT&T Network Systems International B.V. .......................Netherlands AT&T Paradyne Corporation .....................................Delaware AT&T of Puerto Rico, Inc. .....................................New York AT&T Universal Card Services Corporation ......................Delaware AT&T Wireless Services, Inc. ..................................Delaware LIN Broadcasting Corporation ..................................Delaware LIN Television Corporation ....................................Delaware Lucent Technologies Inc. ......................................Delaware Lucent Technologies International Inc. ........................Delaware NCR Corporation................................................Delaware