Amos Emerson Dolbear was an American physicist and inventor. Dolbear researched electrical spark conversion into sound waves and electrical impulses. He was a professor at University of Kentucky in Lexington from 1868 until 1874. In 1874 he became the chair of the physics department at Tufts University in Medford, Massachusetts. He is known for his 1882 invention of a system for transmitting telegraph signals without wires. In 1899 his patent for it was purchased in an unsuccessful attempt to interfere with Guglielmo Marconi's wireless telegraphy patents in the United States.
Evelyn Beatrice Longman was an American sculptor whose allegorical figure works were commissioned as monuments and memorials, adornment for public buildings, and attractions at art expositions in the early 20th-century. She became the first woman sculptor to be elected a full member of the National Academy of Design in 1919.
Edward Earl Whitacre Jr. is the former chairman and CEO of General Motors. He is also a former chairman of the board and chief executive officer of AT&T, previously Southwestern Bell Corporation (SBC). He served as national president of the Boy Scouts of America from 1998 to 2000. On September 1, 2010, Whitacre stepped down as CEO, and retired as chairman of the board by the end of 2010.
The monopoly position of the Bell System in the U.S. was ended on January 8, 1982. AT&T Corporation proposed by in a consent decree to relinquish control of the Bell Operating Companies, which had provided local telephone service in the United States. AT&T would continue to be a provider of long-distance service, while the now-independent Regional Bell Operating Companies (RBOCs), nicknamed the "Baby Bells", would provide local service, and would no longer be directly supplied with equipment from AT&T subsidiary Western Electric.
Verizon New York, Inc., formerly The New York Telephone Company (NYTel), was organized in 1896, taking over the New York City operations of the American Bell Telephone Company.
The Ohio Bell Telephone Company, now doing business as AT&T Ohio, is the Bell Operating Company serving most of Ohio and parts of West Virginia. It is a wholly owned subsidiary of AT&T.
Indiana Bell Telephone Company, Incorporated, is the Bell Operating Company serving Indiana. It is an indirect subsidiary of AT&T Inc., owned by AT&T Teleholdings.
Wisconsin Bell, Inc. is the name of the Bell Operating Company serving Wisconsin. It is owned by AT&T through AT&T Teleholdings, originally known as Ameritech.
The invention of radio communication was preceded by many decades of establishing theoretical underpinnings, discovery and experimental investigation of radio waves, and engineering and technical developments related to their transmission and detection. These developments allowed Guglielmo Marconi to turn radio waves into a wireless communication system.
AT&T Labs, Inc. is the research & development division of AT&T, the telecommunications company. It employs some 1,800 people in various locations, including: Bedminster NJ; Middletown, NJ; Manhattan, NY; Warrenville, IL; Austin, TX; Dallas, TX; Atlanta, GA; San Francisco, CA; San Ramon, CA; and Redmond, WA. The main research division, made up of around 450 people, is based across the Bedminster, Middletown, San Francisco, and Manhattan locations.
140 New Montgomery Street is a 26-floor Art Deco mixed-use office tower located in San Francisco's South of Market district, close to the St. Regis Museum Tower and the San Francisco Museum of Modern Art. Constructed in 1925 as a modern headquarters for The Pacific Telephone & Telegraph Co., it was originally known as The Pacific Telephone & Telegraph Company Building or simply the Telephone Building, and, after 1984, as The Pacific Bell Building or The PacBell Building.
Whitacre Tower, also known as One AT&T Plaza, and formerly known as One Bell Plaza, is a 37-story high-rise in Downtown Dallas, built adjacent to the Akard Street Mall in 1984.
Dey Street is a short street in Lower Manhattan, in New York City. It passes the west side of the World Trade Center site and the World Trade Center Transportation Hub. It runs for one block between Church Street and Broadway. It originally ran to West Street, but the western reaches were demolished to make way for the World Trade Center in the late 1960s. It now extends to Greenwich Street. 15 Dey Street is the site of the first transcontinental telephone call.
AT&T Inc., an abbreviation for its former name, the American Telephone and Telegraph Company, is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the world's third largest telecommunications company by revenue and the third largest wireless carrier in the United States behind Verizon and T-Mobile. As of 2023, AT&T was ranked 13th on the Fortune 500 rankings of the largest United States corporations, with revenues of $122.4 billion.
AT&T refers to several related companies providing telecommunications services:
Archie Frederick Collins, who generally went by A. Frederick Collins, was a prominent early American experimenter in wireless telephony and prolific author of books and articles covering a wide range of scientific and technical subjects. His reputation was tarnished in 1913 when he was convicted of mail fraud related to stock promotion. However, after serving a year in prison, he returned to writing, including, beginning in 1922, The Radio Amateur's Handbook, which continued to be updated and published until the mid-1980s.
195 Broadway, also known as the Telephone Building, Telegraph Building, or Western Union Building, is an early skyscraper on Broadway in the Financial District of Manhattan in New York City. The building was the longtime headquarters of AT&T Corp. and Western Union. It occupies the entire western side of Broadway from Dey to Fulton Streets.
AT&T Corporation, an abbreviation for its former name, the American Telephone and Telegraph Company, was an American telecommunications company that provided voice, video, data, and Internet telecommunications and professional services to businesses, consumers, and government agencies.
Southwestern Bell Telephone Company, LLC is a wholly owned subsidiary of AT&T. It does business as other d.b.a. names in its operating region, which includes Arkansas, Kansas, Missouri, Oklahoma, Texas, and portions of Illinois. The company is currently headquartered in Dallas, Texas at One AT&T Plaza.
The history of AT&T dates back to the invention of the telephone. The Bell Telephone Company was established in 1877 by Alexander Graham Bell, who obtained the first US patent for the telephone, and his father-in-law, Gardiner Greene Hubbard. Bell and Hubbard also established American Telephone and Telegraph Company in 1885, which acquired the Bell Telephone Company and became the primary telephone company in the United States. This company maintained an effective monopoly on local telephone service in the United States until anti-trust regulators agreed to allow AT&T to retain Western Electric and enter general trades computer manufacture and sales in return for its offer to split the Bell System by divesting itself of ownership of the Bell Operating Companies in 1982.
