EX-21 3 ex-21ye2020.htm EX-21 SUBSIDIARIES OF AT&T INC. Document

Exhibit 21
 
PRINCIPAL SUBSIDIARIES OF

AT&T INC., AS OF DECEMBER 31, 2020

2020 AT&T INC. REPORT TO STOCKHOLDERS

SECURITIES AND EXCHANGE COMMISSION ("SEC")

FORM 10-K filed February 25, 2021

Legal NameState of Incorporation/FormationConducts Business Under
Illinois Bell Telephone
  Company, LLC
 
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
 
SBC Long Distance, LLC
 
DelawareAT&T Long Distance
AT&T Teleholdings, Inc.Delaware
AT&T Midwest;
AT&T West;
AT&T East
 
Southwestern Bell
  Telephone Company
Delaware
AT&T Arkansas; AT&T Kansas;
AT&T Missouri; AT&T Oklahoma;
AT&T Texas; AT&T Southwest;
AT&T DataComm; AT&T Wholesale
 
The Ohio Bell
  Telephone Company
Ohio
AT&T Ohio;
AT&T Wholesale
 
Wisconsin Bell, Inc.Wisconsin
AT&T Wisconsin;
AT&T Wholesale
 
AT&T Services, Inc.Delaware
AT&T Services;
AT&T Labs



AT&T Corp.New York
AT&T Corp.; ACC Business;
AT&T Wholesale;
AT&T Business Solutions;
AT&T Advanced Solutions;
AT&T Diversified Group;
AT&T Mobile and Business Solutions 
Teleport Communications
  America, LLC

Delaware

same

BellSouth, LLC
 
Georgia
 
AT&T South
 
BellSouth Telecommunications,
  LLC
Georgia
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
AT&T Southeast

AT&T Mobility LLCDelaware
same

AT&T Mobility II LLCDelaware
same

New Cingular Wireless
  PCS, LLC
Delaware
AT&T Mobility


Cricket Wireless LLCDelaware
same

AT&T Communications, LLCDelaware
same

AT&T Latin America, LLCDelaware
same

AT&T Comunicaciones Digitales, S
. de R.L. de C.V.

Mexico City
same

DIRECTV, LLCCalifornia
same

DIRECTV Enterprises, LLCDelaware
same

Vrio Corp.Delaware
same

DIRECTV Latin America, LLCDelaware
same

Sky Serviços de Banda Larga Ltda.

Brazil
Sky Brasil



DIRECTV Colombia Ltda.Colombia
same

DIRECTV Argentina S.A.Argentina
same

Warner Media, LLCDelaware
same

Home Box Office, Inc.Delaware
HBO Global Licensing

Turner Broadcasting System, Inc.Delaware
Turner

Warner Bros. Entertainment Inc.Delaware
Warner-Grandview Music
Warner Bros.
Warner Bros. International Film Acquisitions
Warner Bros. International Cinemas
Warner Bros. Entertainment Group
Warner Bros. Global Insights & Analytics

Historic TW Inc.Delaware
same

Warner Media Content Holdings, L.P.Delaware
same

WarnerMedia Direct, LLCDelaware
same

Warner Communications LLCDelaware
same

Xandr Inc.Delaware
same