EX-21 25 ex21.htm SUBSIDIARIES OF AT&T INC.

Exhibit 21

 

 

PRINCIPAL SUBSIDIARIES OF

AT&T INC., AS OF DECEMBER 31, 2006

 

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 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, L.P.

Texas

AT&T Arkansas; AT&T Kansas;
AT&T Missouri; AT&T Oklahoma;
AT&T Texas; AT&T Southwest;

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

The Woodbury
Telephone Company

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!;

UnispeakSM Service;

AT&T Wholesale

 

AT&T Communications of California, Inc.

California

same

AT&T Communications of the Mountain States, Inc.

Colorado

Conquest, SmarTalk

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

Cingular Wireless; AT&T Mobility

Cingular Wireless II, LLC

Delaware

Cingular Wireless; AT&T Mobility

New Cingular Wireless Services, Inc.

Delaware

Cingular Wireless; AT&T Mobility