AT&T Corporation

AT&T Corporation
Company type	Public
Industry	Telecommunications
Predecessor	Bell Telephone Company
Founded	March 3, 1885; 141 years ago
Defunct	May 1, 2024
Fate	Acquired by SBC Communications (later renamed AT&T Inc.)
Successor	AT&T Inc.
Headquarters	New York City, United States
Area served	Worldwide
Key people	Theodore Newton Vail (president from 1907)
Products	Voice, video, data, Internet services, specialized telecom solutions
Number of employees	~1,000,000 (1950s-1960s)

AT&T Corporation, initially known as the American Telephone and Telegraph Company, was a leading U.S. telecommunications enterprise delivering voice, video, data, Internet services, and specialized telecom solutions to corporate clients, consumers, and government bodies.

As a former component of the Bell System, AT&T at various points ranked as the globe’s largest telecommunications provider and cable operator, functioning as a regulated monopoly. During the 1950s and 1960s, its workforce numbered about one million employees, with revenues increasing from roughly US$3 billion in 1950 to $12 billion by 1966 (inflation-adjusted).

In 2005, AT&T was acquired by its former subsidiary SBC Communications in a transaction exceeding $16 billion. Following the acquisition, SBC adopted the AT&T Inc. name, while AT&T Corporation continued operating as a long-distance service subsidiary until its formal dissolution on May 1, 2024.

Founding

The origins of AT&T trace back to the Bell Patent Association, created in 1874 to safeguard Alexander Graham Bell's telephone patent. This organization evolved into the Bell Telephone Company by 1875.

By 1880, American Bell’s leadership initiated what would become AT&T Long Lines, establishing a nationwide long-distance network with an economically viable model. The company was incorporated as American Telephone and Telegraph Company on March 3, 1885, expanding its network to Chicago, Illinois by 1892 and eventually building a telephone system spanning the continent. Due to Massachusetts corporate law constraints, on December 30, 1899, American Bell transferred its holdings to its subsidiary AT&T, making AT&T the parent entity of both American Bell and the Bell System.

Theodore Newton Vail assumed the presidency of AT&T on April 30, 1907. Vail advocated for a unified telephone system under the motto "One Policy, One System, Universal Service," which steered company strategy for nearly seventy years.

During Vail’s tenure, AT&T acquired numerous smaller telephone firms and the Western Union telegraph company. To prevent antitrust litigation, AT&T agreed to the Kingsbury Commitment with federal authorities, permitting it to retain monopoly status under conditions such as divesting Western Union interests. This regulatory framework remained effective until AT&T’s breakup in 1984. For much of the twentieth century, AT&T maintained a dominant position in U.S. and Canadian phone service through the Bell System, earning it the moniker Ma Bell.

Initial radio innovation

AT&T closely tracked emerging telephony technologies initially intended for private communications. In 1906, it observed Reginald Fessenden's radiotelephone demonstration but deemed his system insufficiently developed. The practical advancement arrived with vacuum-tube transmitters; AT&T secured commercial rights to Lee de Forest's vacuum-tube and radio patents. Originally designed for amplifying landline signals, AT&T’s 1915 radiotelephony experiments from Arlington, Virginia set new records for audio transmission distance—reaching locations such as Hawaii and Paris—marking the first documented transatlantic speech transmission.

In 1919, the Radio Corporation of America was established from Marconi's American assets. Subsequently, patent cross-licensing agreements were arranged, including a 1920 contract granting AT&T exclusive U.S. rights for "Public Service Telephony." That same year saw a radio telephone connection between Avalon Island and mainland California; however, due to privacy concerns this link was replaced by cable.

Recognizing radio's broadcasting potential for mass audiences, AT&T engineers proposed in 1919 a nationwide network comprising 38 stations interconnected by long-distance lines available for commercial leasing ("toll stations"). By 1922, radio broadcasting in the U.S. had grown swiftly to over 500 stations. AT&T operated only two: WBAY (later WEAF) in New York City and WCAP in Washington D.C., with WEAF serving as its flagship station. It mainly competed against RCA’s WJZ, although WJZ was restricted from commercial broadcasting under patent agreements. RCA engineer Carl Dreher acknowledged that AT&T held technical superiority owing to Bell Laboratories’ expertise.

Most broadcasters preferred owning their own facilities rather than leasing airtime from WEAF. Although AT&T’s Western Electric subsidiary held exclusive manufacturing rights for radio transmitters, many stations constructed their own equipment. By 1924, only about fifty stations used Western Electric transmitters; consequently, AT&T aggressively enforced its patents through legal action against stations like WHN. Despite public denials of monopoly ambitions by AT&T president H. B. Thayer, earlier contracts had limited stations’ ability to engage in commercial broadcasting—effectively curbing competition. Commerce Secretary Herbert Hoover opposed monopolization within broadcasting.

WHN settled litigation out of court by paying $2,000 for a personal license authorizing general telephonic broadcasting including commercial content. The standard license fee was $4 per kilowatt of transmitter power ($1 for non-commercial stations), pricing out some smaller operators such as Medford’s KFAY and Portland’s KGG and KFOH. Nonetheless, this settlement established commercial broadcasting legitimacy.

Simultaneously, AT&T developed a network connecting radio stations through dedicated long-distance telephone lines. The first permanent link was completed in summer 1923 between WEAF and WMAF in Massachusetts. This "WEAF chain" formed the basis for future national radio networks.

Subsidiary: Broadcasting Company of America

On May 11, 1926, AT&T restructured its radio broadcasting division by forming a new subsidiary called the Broadcasting Company of America (BCA), headquartered at AT&T's main office located at 195 Broadway in New York City. This arrangement provided AT&T with the option to maintain semi-autonomous operations or facilitate an easier exit from the broadcasting sector if desired.

During BCA’s short tenure, the WEAF network encompassed 17 stations predominantly situated in the northeastern United States, extending westward to include WDAF in Kansas City, Missouri. Advertising rates for evening hours varied from $170 at smaller stations to $480 at the flagship WEAF station, while a full-hour broadcast across the entire network was priced at $4,080 before any discounts.

At the time of BCA’s establishment, confidential discussions were underway between AT&T and RCA-led "radio group" companies concerning cross-licensing agreements and strategic industry direction. On July 21, 1926, AT&T declared it would sell BCA to RCA for $1 million. RCA utilized these assets as a foundation for launching the National Broadcasting Company. Although WEAF proved profitable, AT&T recognized that broadcasting’s mission diverged from its core telephone services, making it more appropriate for other operators to manage. Nevertheless, AT&T continued to profit by leasing long-distance telephone lines used to connect radio network affiliates.

Undersea Communications and Operations

AT&T significantly contributed to the development of both national and international undersea telecommunications networks. Beginning with a U.S. Navy-commissioned underwater surveillance cable system in 1950, AT&T expanded into commercial cable laying by 1955, generating income through local and long-distance telephone and data transmission services. The AT&T Long Lines division was responsible for installing and maintaining undersea cables, while Western Electric produced coaxial and subsequently fiber optic equipment. Innovations in undersea transmission technology were spearheaded by Bell Labs.

In 1955, AT&T deployed the inaugural transatlantic telephone cable, TAT-1, which supported 48 long-distance circuits connecting North America with Europe. Partnerships with foreign companies such as France’s Cables de Lyon and Germany’s Felten & Guilleaume facilitated expansion projects like TAT-2. By the 1970s, AT&T had established itself as a global leader with systems including TAT-5 (1970) and TAT-6 (1975), capable of handling up to 4,000 simultaneous voice or data channels.

Initially utilizing chartered vessels like the CS Monarch (1945), AT&T began acquiring its own fleet starting with CS Long Lines in 1961 through its subsidiary Transoceanic Cable Ship Company. Following the Bell System divestiture, these operations persisted under AT&T Submarine Systems Inc. until six ships were sold to Tyco International Ltd for $850 million in 1997.

Notable cable-laying vessels included:

CS Lidiv (retired 1955), succeeded by CS Cable Queen
CS Cable Queen (constructed 1951–52), which laid over 100,000 miles of cable before retiring after 1989
CS Salernum (built 1954), acquired in 1984 and sold to Tyco in 1997
CS Long Lines (built between 1961–63), a $19 million investment measuring 511 feet in length; responsible for laying TRANSPAC-1—the first trans-Pacific telephone cable—in 1964 as well as TPC-3, the initial trans-Pacific fiber optic cable; sold to Tyco in 1997 and dismantled in 2003
C.S. Link (from the 1990s), owned by Transoceanic Cable Ship Co.
CS Global Sentinel (1992) and CS Global Mariner (1992), sister ships featuring bow thrusters and large cable storage capacities operated by Transoceanic Cable Ship Co.

Between 1951 and 2000, AT&T took part in no fewer than 73 global cable-laying missions. The Long Lines vessel alone completed 23 deployments from 1963 through 1992, including groundbreaking deep-sea optical fiber experiments in 1982 that paved the way for the multinational installation of the TAT-8 fiber optic cable system in 1988.

Divestiture

In 1974, the U.S. Department of Justice launched the United States v. AT&T lawsuit, alleging that AT&T improperly used monopoly earnings from its Western Electric subsidiary to offset network expenses, thereby breaching antitrust regulations. The resulting agreement in 1982 culminated in the breakup effective January 1, 1984, which split the company into seven Regional Bell Operating Companies known as "Baby Bells":

Ameritech, which SBC acquired in 1999 and is now part of AT&T Inc.
Bell Atlantic, presently Verizon Communications, which merged with GTE in 2000
BellSouth, integrated into AT&T Inc. in 2006
NYNEX, purchased by Bell Atlantic in 1996 (Bell Atlantic later became Verizon)
Pacific Telesis, taken over by SBC in 1997 and now within AT&T Inc.
Southwestern Bell (later renamed SBC and currently AT&T Inc.), which acquired AT&T Corp. in 2005
US West, acquired by Qwest in 2000; Qwest was subsequently bought by CenturyLink (now Lumen Technologies) in 2011. In May 2025, AT&T agreed to acquire Lumen’s consumer connectivity business, incorporating much of US West's residential network into AT&T Inc.

Following the divestiture, the original parent company concentrated on long-distance telecommunications through AT&T Communications Inc. and other activities outside the RBOCs.

In 1991, AT&T purchased NCR Corporation. By 1995, it intended to separate into three entities focused on manufacturing/research and development, computing, and services. This strategy led to spinning off NCR, Bell Labs, and AT&T Technologies by 1997. The latter became known as Lucent Technologies, achieving full independence by 1996.

SBC's Acquisition

On January 31, 2005, SBC Communications declared its $16 billion purchase of "Ma Bell" AT&T Corp. By October that year, SBC had adopted the well-known AT&T name and assumed the original "T" ticker symbol on the NYSE.

The merger received approval on November 18, 2005; SBC began rebranding as "the new AT&T" on November 21 and started trading under "T" on December 1. The current AT&T Inc. traces its corporate lineage to AT&T Corp., while maintaining SBC’s pre-2005 stock history and organizational framework; all Securities and Exchange Commission filings before 2005 are filed under SBC.

AT&T Headquarters

From 1885 until 1910, AT&T was based at 125 Milk Street in Boston before relocating to New York City at 195 Broadway, near where the current World Trade Center site stands. Originally owned by Western Union, this property remained under AT&T’s control until it was divested in 1913 following the Kingsbury Commitment. Construction of the existing building commenced in 1912 under architect William Welles Bosworth, who was noted for blending classical architectural motifs with contemporary steel-frame construction. The structure featured a notable "hypostyle hall" lobby supported by Doric columns designed to create an architectural illusion rather than mere ornamentation. Bosworth also contributed to designing the MIT campus and Theodore N. Vail's residence.

In 1978, a new headquarters was commissioned at 550 Madison Avenue, designed by architect Philip Johnson in a Postmodern style. Completed in 1984—the same year as the Bell System breakup—the building eventually proved too large for the downsized company. By 1993, AT&T leased this space to Sony, which maintained ownership until 2013.

During the late 1960s, plans were made for a suburban administrative complex located in Basking Ridge, New Jersey. Land acquisition began in 1970 with construction starting four years later. Architect Vincent Kling designed a campus inspired by Fordist principles featuring seven interconnected buildings on a sprawling 130-acre site equipped with amenities such as an extensive underground parking garage, helipad, cafeteria, indoor waterfall, and an artificial lake for flood management. The $219 million facility opened in 1975 initially housing general administrative departments.

In 1985, a Learning Center conference facility was added across from the main complex; it earned Somerset County's Land Development Award. By 1992, Basking Ridge became AT&T’s corporate headquarters as the company leased out its New York City offices. The iconic "Golden Boy" statue was relocated here. Artist Elyn Zimmerman completed a major fountain sculpture installation for the conference center courtyard in 1994. At its peak employment reached approximately 6,000 before reductions due to intensifying competition.

By October 2001, the Basking Ridge campus expanded to cover 140 acres with roughly 2.6 million square feet of space but was put up for sale as employee numbers dropped to about 3,200. In April 2002, Pharmacia Corporation acquired the property for $210 million to serve as its headquarters. Verizon purchased most of the complex (excluding the hotel/conference center) in 2005 for its Wireless Headquarters and consolidated nearby New Jersey operations there. The hotel/conference center—then operating as Dolce Basking Ridge—was sold separately for $30 million in 2017 after Pfizer listed it for sale in 2007.

After relinquishing Basking Ridge as corporate headquarters in 2002, AT&T shifted operations to Bedminster, New Jersey—a facility spanning approximately 1.1 million square feet on a site of nearly 194 acres that had served since 1977 as a Network Operations Center. Following SBC Communications' acquisition of AT&T in 2005, Dallas became the new corporate headquarters location. Between 2009 and 2010, the "Golden Boy" statue was moved to Texas. In 2023, AT&T terminated lease agreements at its Bedminster campus (1 AT&T Way) and relocated within Bedminster township to addresses along Route 206.

Dissolution

On February 15, 2024, AT&T Inc. informed the Kentucky Public Service Commission of its intention to consolidate AT&T Corp. into AT&T Enterprises, Inc., thereby converting it into a limited liability company. A submission dated January 30, 2024, to the South Dakota Secretary of State referenced legal constraints under New York state law that prohibited a direct transformation of AT&T Corp. into an LLC. Although SBC acquired AT&T Corp. in 2005, the company continued to exist as a distinct entity within the organizational framework of AT&T Inc. The purpose of this merger is to enhance "operational efficiencies," effectively concluding AT&T Corp.'s nearly 140-year independent existence. This internal restructuring became effective on May 1, 2024.

Divisions/Subsidiaries

Prior to its merger with SBC Communications, AT&T consisted of three principal entities:

AT&T Alascom was responsible for telecommunications services in Alaska. AT&T Communications, later renamed AT&T Communications – East, Inc., provided long-distance services and operated as a Competitive Local Exchange Carrier (CLEC) outside the territories served by Bell Operating Companies. This division has since been integrated into AT&T Corp., with most original subsidiaries remaining operational. AT&T Laboratories was merged into AT&T Labs, the successor entity previously known as SBC Laboratories.

Nicknames and branding

Historically, AT&T earned the moniker "Ma Bell" and was affectionately called "Mother" by phone phreak enthusiasts. During employee strikes, participants often wore shirts emblazoned with the phrase, "Ma Bell is a real mother." Before its breakup, the "Bell System" brand held greater consumer recognition than AT&T itself, leading to post-divestiture marketing efforts aimed at strengthening the AT&T name. The Regional Bell Operating Companies (RBOCs) became commonly known as "Baby Bells." Significantly, one of these Baby Bells, SBC Communications, reacquired "Ma Bell" in 2005.

The AT&T Globe Symbol, created by Saul Bass in 1983 and initially used by AT&T Information Systems, was developed as a result of the United States v. AT&T breakup agreement that mandated surrendering Bell System trademarks. This logo earned the nickname "Death Star" due to its similarity to the iconic Star Wars space station. The design evolved from an original 12-line globe to an 8-line version in 1999, and later transformed into a three-dimensional transparent "marble" style by Interbrand in 2005 for use by AT&T Inc.

List of AT&T chief executive officers

Below is a roster of the sixteen individuals who served as chief executive officers of AT&T Corporation from its founding in 1885 until its acquisition by SBC Communications in 2005.

#	Chief executive officer	Years in office	Title
1	Theodore Newton Vail	1885–1887	President
2	John E. Hudson	1887–1900	President
3	Frederick Perry Fish	1901–1907	President
4	Theodore Newton Vail	1907–1919	President
5	Harry Bates Thayer	1919–1925	President
6	Walter Sherman Gifford	1925–1948	President
7	Leroy A. Wilson	1948–1951	President
8	Cleo F. Craig	1951–1956	President
9	Frederick Kappel	1956–1961 1961–1967	President Chairman
10	H. I. Romnes	1967–1972	Chairman
11	John D. deButts	1972–1979	Chairman
12	Charles L. Brown	1979–1986	Chairman
13	James E. Olson	1986–1988	Chairman
14	Robert Eugene Allen	1988–1997	Chairman
15	C. Michael Armstrong	1997–2002	Chairman
16	David Dorman	2002–2005	Chairman

External links

AT&T (Archived)
The brief film A CONTINENT IS BRIDGED (Reel 1, Reel 2, Reel 3, Reel 4) (1940) accessible for free download at the Internet Archive
American Telephone & Telegraph branding, advertisements, and vintage telephone maps available on the Baring archive Risks and Rewards website
Historical financial records of AT&T
AT&T Telephone Magazine issues from January/February 1972 VOL 51/NO 1 through November/December 1973 VOL 52/NO 5, totaling 402 pages, viewable as PDF [1]