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A telephone number is a sequence of digits assigned to a landline telephone subscriber station connected to a telephone line or to a wireless electronic telephony device, such as a radio telephone or a mobile telephone, or to other devices for data transmission via the public switched telephone network (PSTN), or other public and private networks.
In NANP telephone number specifications, the letter N represents a numeral from 2 through 9, while the letter X represents any numeral. Thus, NXX is a number from 200 through 999, while XXXX is a range from 0000 through 9999. The first three digits of a telephone number are the numbering plan area code (NPA code, or simply NPA).
IDDD was implemented through extensive modifications in the switching systems to accommodate the international open numbering plan with seven to twelve digits in the national telephone numbers. [53] Access to the international network is facilitated by the dialing prefix 011, after which the country code and the national telephone number are ...
America Online CEO Stephen M. Case, left, and Time Warner CEO Gerald M. Levin listen to senators' opening statements during a hearing before the Senate Judiciary Committee on the merger of the two ...
As phone lines became more popular—between 1942 and 1962, the number of phones in the U.S. grew 230% to 76 million—telephone companies realized they would run out of phone numbers.
Yahoo (/ ˈ j ɑː h uː / ⓘ, styled yahoo! in its logo) [4] is an American web services portal. The web portal provides search engine Yahoo Search and related services including My Yahoo , Yahoo Mail , Yahoo News , Yahoo Finance , Yahoo Sports and its advertising platform, Yahoo Native .
Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.
All-number calling (ANC) is a telephone numbering plan that was introduced into the North American Numbering Plan by the Bell System in the United States starting in 1958 [1] to replace the previous system of using a telephone exchange name as the first part of a telephone number. [2]