EX-21 45 ex21.htm SUBSIDIARIES OF AT&T INC ex21.htm
Exhibit 21

PRINCIPAL SUBSIDIARIES OF
 
AT&T INC., AS OF DECEMBER 31, 2007
 
 
 
Legal Name
 
State of Incorporation/Formation
 
Conducts Business Under
 
Illinois Bell Telephone
Company
 
Illinois
AT&T Illinois;
AT&T Wholesale
Indiana Bell Telephone
Company, Incorporated
 
Indiana
AT&T Indiana;
AT&T Wholesale
Michigan Bell
Telephone Company
 
Michigan
AT&T Michigan;
AT&T Wholesale
Nevada Bell
Telephone Company
 
Nevada
AT&T Nevada;
AT&T Wholesale
Pacific Bell
Telephone Company
California
AT&T California;
AT&T Wholesale;
AT&T DataComm
 
AT&T International, Inc.
 
Delaware
AT&T International
SBC Internet Services, Inc.
California
AT&T Internet Services;
AT&T Entertainment Services
SBC Long Distance, LLC
 
Delaware
AT&T Long Distance
AT&T Teleholdings, Inc
 
Delaware
AT&T Midwest;
AT&T West;
AT&T East
 
Southwestern Bell
Telephone Company
Missouri
AT&T Arkansas; AT&T Kansas;
AT&T Missouri; AT&T Oklahoma;
AT&T Texas; AT&T Southwest;
AT&T DataComm; AT&T Wholesale
 
Southwestern Bell
Yellow Pages, Inc.
Missouri
AT&T Advertising & Publishing
 
Sterling Commerce, Inc.
 
 
Delaware
 
same
The Ohio Bell
Telephone Company
 
Ohio
AT&T Ohio;
AT&T Wholesale
The Southern New
England Telephone Company
 
Connecticut
AT&T Connecticut;
AT&T Woodbury
Wisconsin Bell, Inc.
Wisconsin
AT&T Wisconsin;
AT&T Wholesale

 
 
 
Exhibit 21



Legal Name
 
State of Incorporation/Formation
 
Conducts Business Under
 
AT&T Corp.
New York
AT&T Corp; AT&T;
Conference Operator-AT&T;
Connect N'Save; ACC Business; AT&T Worldnet Services; AT&T Worldnet; AT&T Wholesale; Lucky Dog Phone Co.; SmarTalk; GTI;
prepaidserviceguide.com;
ConQuest; CQTalk!;
UnispeakSMService;
AT&T Wholesale;
AT&T Communications of Los Angeles; AT&T Communications of San Diego; AT&T Communications of San Francisco
 
AT&T Communications of California, Inc.
 
California
same
AT&T Communications of the Mountain States, Inc.
 
Colorado
Conquest; SmarTalk; CQTalk!
AT&T Communications of NJ, LP
 
Delaware
 
same
 
AT&T Communications of New York, Inc.
New York
 
same
 
AT&T Communications of Illinois, Inc.
 
Illinois
 
same
 
 
 
AT&T Communications of the Southern States, LLC
 
 
Delaware
 
 
 
 
 
ACC Business; SmarTalk;
prepaidserviceguide.com;
GTI; AT&T; Conquest; CQTalk!; Lucky Dog Phone Co.
 
Teleport Communications New York
 
New York
same
 
BellSouth Corporation
Georgia
AT&T South
 
BellSouth Telecommunications, Inc.
 
Georgia
 
AT&T Southeast
AT&T Alabama
AT&T Florida
AT&T Georgia
AT&T Louisiana
AT&T Kentucky
AT&T Mississippi
AT&T North Carolina
AT&T South Carolina
AT&T Tennessee

 
 
 
Exhibit 21



Legal Name
State of Incorporation/Formation
Conducts Business Under
 
AT&T Mobility LLC
 
Delaware
AT&T Mobility
 
Cingular Wireless II, LLC
Delaware
AT&T Mobility
 
New Cingular Wireless Services, Inc.
Delaware
AT&T Mobility
 
Dobson Communications Corporation
Oklahoma
same
 
Dobson Cellular Systems, Inc.
Oklahoma
Cellular One
 
American Cellular Corporation
Delaware
Cellular One