AT&T

AT&T Inc.Southwestern Bell CorporationAT&T Latin AmericaAT&T, Inc.American Telephone and Telegraph CompanySBCSBC CommunicationsAT&T IncSBC Communications Inc.Southwestern Bell
AT&T Inc. is an American multinational conglomerate holding company headquartered at Whitacre Tower in Downtown Dallas, Texas.wikipedia
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AT&T Corporation

AT&TAmerican Telephone and Telegraph CompanyAmerican Telephone & Telegraph
The Bell Telephone Company evolved into American Telephone and Telegraph Company in 1885, which later rebranded as AT&T Corporation.
AT&T Corporation, originally the American Telephone and Telegraph Company, is the subsidiary of AT&T Inc. that provides voice, video, data, and Internet telecommunications and professional services to businesses, consumers, and government agencies.

AT&T Mobility

AT&TCingularCingular Wireless
In 2006, AT&T Inc. acquired BellSouth, the last independent Baby Bell company, making their formerly joint venture Cingular Wireless (which had acquired AT&T Wireless in 2004) wholly owned and rebranding it as AT&T Mobility. Three months after completing the acquisition, AT&T reorganized into four main units: Communications, including consumer and business wireline telephony, AT&T Mobility, and consumer entertainment video services; WarnerMedia, including Turner cable television networks, Warner Bros. film and television production, and HBO; AT&T Latin America, consisting of wireless service in Mexico and video in Latin America and the Caribbean under the Vrio brand; and Advertising and Analytics, since renamed Xandr.
AT&T Mobility LLC or AT&T U.S. Mobility, also known as AT&T Wireless, marketed as simply AT&T, is a wholly owned subsidiary of AT&T Inc. that provides wireless services to 162.3 million subscribers in the United States, including Puerto Rico and the U.S. Virgin Islands.

BellSouth

Bell SouthBellSouth CorporationAT&T
In 2006, AT&T Inc. acquired BellSouth, the last independent Baby Bell company, making their formerly joint venture Cingular Wireless (which had acquired AT&T Wireless in 2004) wholly owned and rebranding it as AT&T Mobility. Of the Baby Bells, Ameritech sold some of its Wisconsin landlines to CenturyTel, in 1998; BellSouth sold some of its lines to MebTel, during the 2000s; U S WEST sold many historically Bell landlines to Lynch Communications and Pacific Telecom, in the 1990s; Verizon sold many of its New England lines to FairPoint, in 2008, and its West Virginia operations to Frontier Communications, in 2010.
In a merger announced on March 5, 2006, and executed on December 29, 2006, AT&T Inc. (originally SBC Communications) acquired BellSouth for approximately $86 billion (1.325 shares of AT&T for each share of BellSouth).

DirecTV

Direct TVDirectTVDirecTV Sports
In July 2015, AT&T purchased DirecTV for $48.5 billion, or $67.1 billion including assumed debt, subject to certain conditions. On July 13, 2017, it was reported that AT&T would introduce a cloud-based DVR streaming service as part of its effort to create a unified platform across DirecTV and its DirecTV Now streaming service, with U-verse to be added soon. In order for AT&T to fully acquire Time Warner, the Department of Justice stated that the company must divest either DirecTV or Turner Broadcasting System.
DirecTV is an American direct broadcast satellite service provider based in El Segundo, California and is a subsidiary of AT&T.

AT&T Mexico

IusacellAT&TAT&T,
AT&T purchased the Mexican carrier Iusacell in late 2014, and two months later purchased the Mexican wireless business of NII Holdings, merging the two companies to create AT&T Mexico. In 2017, AT&T announced a new AT&T International corporate division housing AT&T Mexico, DirecTV Latin America and their stakes of SKY Brazil and Sky Mexico.
AT&T Mexico (formerly known as Iusacell and Nextel Mexico) also known as AT&T Mexico Wireless and AT&T Mexico Mobility is a Mexican mobile telephone operator and subsidiary of AT&T, which is headquartered in Mexico City.

HBO Max

new streaming serviceTV streamingupcoming direct-to-consumer video service
Named HBO Max, the service's release date was pushed to 2020.
HBO Max is an upcoming American subscription video on demand service from WarnerMedia Entertainment, a division of AT&T's WarnerMedia.

AT&T TV

DirecTV NowAT&T TV NowAT&T Now
On July 13, 2017, it was reported that AT&T would introduce a cloud-based DVR streaming service as part of its effort to create a unified platform across DirecTV and its DirecTV Now streaming service, with U-verse to be added soon.
AT&T TV is a family of streaming pay television services offered in the United States by AT&T.

Warner Bros.

Warner BrothersWarner Bros. PicturesWarner Bros
Three months after completing the acquisition, AT&T reorganized into four main units: Communications, including consumer and business wireline telephony, AT&T Mobility, and consumer entertainment video services; WarnerMedia, including Turner cable television networks, Warner Bros. film and television production, and HBO; AT&T Latin America, consisting of wireless service in Mexico and video in Latin America and the Caribbean under the Vrio brand; and Advertising and Analytics, since renamed Xandr.
Warner Bros. Entertainment Inc. (simply known as Warner Bros. and abbreviated as WB), formerly known as Warner Bros. Pictures, Inc., is an American entertainment company headquartered in Burbank, California, and is a division of AT&T's WarnerMedia.

Sprint Corporation

SprintSprint NextelSprint Nextel Corporation
AT&T continued to operate long distance services, but as a result of this breakup, faced competition from new competitors such as MCI and Sprint.
By the mid 1970s, SPC was beginning to take business away from AT&T, which held a monopoly at the time.

Breakup of the Bell System

Bell System divestiturebreakup of AT&TAT&T divestiture
The 1982 United States v. AT&T antitrust lawsuit resulted in the divestiture of AT&T Corporation's ("Ma Bell") subsidiaries or Regional Bell Operating Companies (RBOCs), commonly referred to as "Baby Bells", resulting in several independent companies, including Southwestern Bell Corporation; the latter changed its name to SBC Communications Inc. in 1995.
It was at this point that AT&T was purchased by one of its own spin-offs, SBC Communications, the company that had also purchased two other RBOCs and a former AT&T associated operating company (Ameritech, Pacific Telesis, and SNET), and which later purchased another RBOC (BellSouth).

Cloud computing

cloudcloud-basedcloud services
On July 13, 2017, it was reported that AT&T would introduce a cloud-based DVR streaming service as part of its effort to create a unified platform across DirecTV and its DirecTV Now streaming service, with U-verse to be added soon.
The term cloud was used to refer to platforms for distributed computing as early as 1993, when Apple spin-off General Magic and AT&T used it in describing their (paired) Telescript and PersonaLink technologies.

AT&T Communications

AT&T Long LinesAT&Tlong-lines
It is the world's largest telecommunications company, the largest provider of mobile telephone services, and the largest provider of fixed telephone services in the United States through AT&T Communications.
AT&T Communications, LLC is a subsidiary of AT&T that focuses on wireline, wireless, digital television, satellite television, fixed line telephone, mobile phone, broadband, home security, IPTV, OTT services, network security, and pay television offerings, as well as business applications.

Vrio Corp.

DirecTV Latin AmericaVrioDirecTV
Three months after completing the acquisition, AT&T reorganized into four main units: Communications, including consumer and business wireline telephony, AT&T Mobility, and consumer entertainment video services; WarnerMedia, including Turner cable television networks, Warner Bros. film and television production, and HBO; AT&T Latin America, consisting of wireless service in Mexico and video in Latin America and the Caribbean under the Vrio brand; and Advertising and Analytics, since renamed Xandr. On March 7, 2018, the company prepared to sell a minority stake of DirecTV Latin America through an IPO, creating a new holding company for those assets named Vrio Corp. In 2017, AT&T announced a new AT&T International corporate division housing AT&T Mexico, DirecTV Latin America and their stakes of SKY Brazil and Sky Mexico.
It is a joint venture between AT&T Latin America.

Xandr

Three months after completing the acquisition, AT&T reorganized into four main units: Communications, including consumer and business wireline telephony, AT&T Mobility, and consumer entertainment video services; WarnerMedia, including Turner cable television networks, Warner Bros. film and television production, and HBO; AT&T Latin America, consisting of wireless service in Mexico and video in Latin America and the Caribbean under the Vrio brand; and Advertising and Analytics, since renamed Xandr.
Xandr (pronounced "Xander") is the advertising and analytics division of AT&T which operates an online platform, called Community, for buying and selling consumer-centric digital advertising.

WarnerMedia

Time WarnerWarner CommunicationsAOL Time Warner
Since June 14, 2018, it is also the parent company of mass media conglomerate WarnerMedia, making it the world's largest media and entertainment company in terms of revenue.
Warner Media, LLC is an American multinational mass media and entertainment conglomerate owned by AT&T and headquartered in New York City.

History of AT&T

SBC CommunicationsSBCAmerican Telephone and Telegraph Company
AT&T Corporation was eventually purchased by one of its Regional Bell Operating Company, the former Southwestern Bell Company, in 2005 and the combined company became known as AT&T Inc.

Southwestern Bell

Southwestern Bell Telephone CompanySouthwestern Bell TelephoneAT&T Missouri
AT&T began its history as Southwestern Bell Telephone Company, a subsidiary of the Bell Telephone Company, founded by Alexander Graham Bell in 1877.
Southwestern Bell Telephone Company is a wholly owned subsidiary of AT&T.

Regional Bell Operating Company

Regional Bell Operating CompaniesBaby BellBaby Bells
The 1982 United States v. AT&T antitrust lawsuit resulted in the divestiture of AT&T Corporation's ("Ma Bell") subsidiaries or Regional Bell Operating Companies (RBOCs), commonly referred to as "Baby Bells", resulting in several independent companies, including Southwestern Bell Corporation; the latter changed its name to SBC Communications Inc. in 1995. Of the Baby Bells, Ameritech sold some of its Wisconsin landlines to CenturyTel, in 1998; BellSouth sold some of its lines to MebTel, during the 2000s; U S WEST sold many historically Bell landlines to Lynch Communications and Pacific Telecom, in the 1990s; Verizon sold many of its New England lines to FairPoint, in 2008, and its West Virginia operations to Frontier Communications, in 2010.
Currently, three companies have the RBOCs as predecessors: AT&T Inc., Verizon, and CenturyLink.

Ameritech

Ameritech CorporationAT&T TeleholdingsAmerican Information Technologies
Of the Baby Bells, Ameritech sold some of its Wisconsin landlines to CenturyTel, in 1998; BellSouth sold some of its lines to MebTel, during the 2000s; U S WEST sold many historically Bell landlines to Lynch Communications and Pacific Telecom, in the 1990s; Verizon sold many of its New England lines to FairPoint, in 2008, and its West Virginia operations to Frontier Communications, in 2010.
Ameritech was acquired by SBC Communications in 1999 which subsequently acquired AT&T Corporation in 2006, becoming the present-day AT&T Inc.

YP Holdings

AT&T Advertising SolutionsAT&T Real Yellow PagesAT&T Advertising & Publishing
St. Louis continues as home to the company's Directory operations, AT&T Advertising Solutions.
The company was formed on April 4, 2012 preceding a formal announcement that AT&T would sell off a 53% stake in its directory operations to Cerberus Capital Management.

Turner Broadcasting System

Turner BroadcastingTBSTurner
Three months after completing the acquisition, AT&T reorganized into four main units: Communications, including consumer and business wireline telephony, AT&T Mobility, and consumer entertainment video services; WarnerMedia, including Turner cable television networks, Warner Bros. film and television production, and HBO; AT&T Latin America, consisting of wireless service in Mexico and video in Latin America and the Caribbean under the Vrio brand; and Advertising and Analytics, since renamed Xandr. In order for AT&T to fully acquire Time Warner, the Department of Justice stated that the company must divest either DirecTV or Turner Broadcasting System.
In April 2017, in order to expedite the sale of Time Warner to AT&T by shedding FCC-licensed properties, WPCH-TV was sold to Meredith Corporation, which had already been operating WPCH under a local marketing agreement since 2011 as a sister to its local CBS affiliate WGCL-TV.

Dow Jones Industrial Average

Dow JonesDJIADow
By 1998, the company was in the top 15 of the Fortune 500, and by 1999 the company was part of the Dow Jones Industrial Average (lasting through 2015).

Verizon Communications

VerizonBell AtlanticGTE
Of the Baby Bells, Ameritech sold some of its Wisconsin landlines to CenturyTel, in 1998; BellSouth sold some of its lines to MebTel, during the 2000s; U S WEST sold many historically Bell landlines to Lynch Communications and Pacific Telecom, in the 1990s; Verizon sold many of its New England lines to FairPoint, in 2008, and its West Virginia operations to Frontier Communications, in 2010.
SBC Communications bought out the Bells' former parent AT&T Corporation, and assumed the AT&T name.

HBO

Home Box OfficeHBO.comHBO Family
Three months after completing the acquisition, AT&T reorganized into four main units: Communications, including consumer and business wireline telephony, AT&T Mobility, and consumer entertainment video services; WarnerMedia, including Turner cable television networks, Warner Bros. film and television production, and HBO; AT&T Latin America, consisting of wireless service in Mexico and video in Latin America and the Caribbean under the Vrio brand; and Advertising and Analytics, since renamed Xandr.
On October 22, 2016, AT&T announced an offer to acquire Time Warner for $108.7 billion, including debt it would assume from the latter.

Sky México

SkySKY MexicoSky Sports
In 2017, AT&T announced a new AT&T International corporate division housing AT&T Mexico, DirecTV Latin America and their stakes of SKY Brazil and Sky Mexico.
It is one of Mexico's leading pay-TV providers and is owned by Televisa and Vrio, a subsidiary of AT&T Latin America.