AT&T; Communications - East, Inc.

At&t; Communications Of New England, Inc

At&t; Communications Of The South Central States, Inc

At&t; Communications Of The Southern States, Llc (delaware)

At&t; Corp

At&t; Corp

AT&T; Enterprise Services, Inc.

At&t; Finance Corp

At&t; Finance Corp

At&t; Financial Services Inc

At&t; Financial Services, Inc

At&t; Global Network Services Llc

At&t; Global Network Services Llc

At&t; Government Solutions, Inc

AT&T; Government Solutions, Inc.

At&t; Information Systems Inc

At&t; Information Systems, Inc

At&t; Intelliserve Inc. (withdrew 1-30-89)

At&t; Network Procurement Lp

At&t; Network Procurement Management Llc