The Diamond State Telephone Company is the Bell Operating Company of Delaware. Founded in 1897, it became a part of the Bell System in 1905. When the AT&T breakup occurred in 1984, DST became managed by the RBOC Bell Atlantic. In 1994, Bell Atlantic chose to "unify" its brand by rebranding all of its telephone companies - including Diamond State Telephone to Bell Atlantic - Delaware. Image File history File links Dstelephone. ... Bell System trademark used by AT&T and affiliated companies from 1921 to 1939 The Bell System was a trademark and service mark used by the US telecommunications company American Telephone & Telegraph Company (AT&T) and its affiliated companies to co-brand their extensive circuit-switched telephone network and their... State nickname: The First State Official languages None Capital Dover Largest city Wilmington Governor Ruth Ann Minner (D) Senators Joe Biden (D) Thomas Carper (D) Area  - Total  - % water Ranked 49th 6,452 km² 21. ... 1897 was a common year starting on Friday (see link for calendar). ... Bell System trademark used by AT&T and affiliated companies from 1921 to 1939 The Bell System was a trademark and service mark used by the US telecommunications company American Telephone & Telegraph Company (AT&T) and its affiliated companies to co-brand their extensive circuit-switched telephone network and their... 1905 (MCMV) was a common year starting on Sunday (see link for calendar). ... AT&T Inc. ... 1984 (MCMLXXXIV) is a leap year starting on Sunday of the Gregorian calendar. ... The Regional Bell operating companies (RBOC) are the result of the United States antitrust action against AT&T in 1983. ... Categories: Corporation stubs | Communications companies of the United States | Defunct companies | Telephone companies | Public Utilities ... 1994 (MCMXCIV) was a common year starting on Saturday of the Gregorian calendar, and was designated the International year of the Family. ...

After the 2000 merger with GTE, Bell Atlantic - Delaware became known as Verizon Delaware. This article is about the year 2000. ... Categories: Corporation stubs | Communications companies of the United States | Defunct companies | Telephone companies | Public Utilities ... This article or section should include material from Bell Atlantic This article or section should include material from GTE Verizon Communications (NYSE: VZ) is a local exchange telephone company formed by the merger of Bell Atlantic, a former Bell Operating Company, and GTE, which was the largest independant local exchange...