EX-21 16 ex21.htm SUBSIDIARIES OF AT&T INC. ex21.htm
Exhibit 21
PRINCIPAL SUBSIDIARIES OF

AT&T INC., AS OF DECEMBER 31, 2009

2009 AT&T INC. REPORT TO STOCKHOLDERS

SECURITIES AND EXCHANGE COMMISSION ("SEC")

FORM 10-K filed February 25, 2010

 
 
 
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  Solutions
     
 
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;
ACC Business;
AT&T Wholesale; Lucky
Dog Phone Co.; SmarTalk;
 
ConQuest; CQTalk!;
AT&T Wholesale; AT&T Business Solutions; AT&T Advanced Solutions
 
AT&T Communications of California, Inc.
California
same
     
AT&T Communications of the Mountain States, Inc.
Colorado
Conquest; SmarTalk;CQTalk!;
www.prepaidserviceguide.com
     
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
 
SmarTalk; ConQuest; Lucky Dog Phone Co.;
 ACC Business
     
AT&T Communications of the Southern States, LLC
 
 
Delaware
 
 
 
ACC Business; SmarTalk;
prepaidserviceguide.com;
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 Kentucky
AT&T Louisiana
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
     
AT&T Mobility II, LLC
Delaware
AT&T Mobility
     
New Cingular Wireless Services, Inc.
Delaware
AT&T Mobility