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Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]
The February 1970 issue of the Pacific Bell telephone directory was the first time Zzzzzz's number, 837-5566 (later 836-5566 [6]), was published. Bilkiss's phone line—by this point not set up as a dial-a-joke service—rang nonstop on the first day of February as a consequence, much to the chagrin of his parents, [ 5 ] who had to set up ...
A telephone directory, commonly called a telephone book, telephone address book, phonebook, or the white and yellow pages, is a listing of telephone subscribers in a geographical area or subscribers to services provided by the organization that publishes the directory. Its purpose is to allow the telephone number of a subscriber identified by ...
The series N00 was used later for non-geographic numbers, starting with intrastate toll-free 800 numbers for Inward Wide Area Telephone Service (WATS) in 1965. [17] N10 numbers became teletypewriter exchanges , [ 18 ] and N11 were used for special services, such as information and emergency services.
A telephone switchboard is a device that allows telephone lines to be interconnected, enabling the routing of calls between different phones or phone networks. [17] The switchboard operator was a person who manually connected calls by plugging and unplugging cords on the switchboard.
Started by Bob Bilkiss of West Los Angeles in 1970, the line was named so to appear last in the Los Angeles telephone directory. Emerging from a wave of Dial-A-Joke numbers in Los Angeles in the turn of the 1970s, [4] Zzzzzz enjoyed a high level of popularity in its day. For several years, it was the busiest residential telephone number in the ...
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Advertisement space within the Minitel phone directory was managed by the Office d'Annonces (ODA), today known as Solocal / Pages Jaunes Groupe based in Sèvres, France. [7] In 1991, the "Minitel Website" for the Paris Sony Stores contained already over 100 pages. Today the 3611 Minitel Directory is replaced by the online white or yellow pages.