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537 reserved as a fifth area code for the region. 906: Michigan (Upper Peninsula: Sault Ste. Marie, Escanaba, Houghton, Iron Mountain, Marquette, Menominee, etc.) March 19, 1961: split of 616; 907: Alaska (all, except the lone border town of Hyder which uses the BC, Canada area codes of 236, 250, 672, or 778 depending on its assigned number ...
Worldwide distribution of country calling codes. Regions are coloured by first digit. Telephone country codes, originally termed International Codes by the International Telegraph and Telephone Consultative Committee (C.C.I.T.T.) in 1960, [1] but also sometimes referred to as "country dial-in codes", or historically "international subscriber dialing" (ISD) codes in the U.K., are telephone ...
The largest telephone numbering plan in North American is the North American Numbering Plan (NANP), serving 25 regions or countries. Other countries maintain an autonomous numbering plan with distinct country codes within the international E.164 specifications by the International Telecommunication Union.
The prefixes in the Americas start with one of 1,2,5. All countries in the Americas use codes that start with "5", with the exception of the countries of the North American Numbering Plan, such as Canada and the United States, which use country code 1, and Greenland and Aruba with country codes starting with the digit "2", which mostly is used by countries in Africa.
Canada and the United States have experienced rapid growth in the number of area codes, particularly between 1990 and 2005. The widespread adoption of fax , modem , and mobile phone communication, as well as the deregulation of local telecommunication services in the United States during the mid-1990s, increased the demand for telephone numbers.
Area codes 519, 226, 548, and 382 are overlay telephone area codes in the North American Numbering Plan (NANP) for most of southwestern Ontario. Area code 519 was the initial code of the numbering plan area (NPA). It was created in 1953 from the western portion of area code 416 and the southwestern portion of 613.
When dialing a telephone number, the area code may have to be preceded by a trunk prefix or national access code for domestic calls, and for international calls by the international access code and country code. Area codes are often quoted by including the national access code. For example, a number in London may be listed as 020 7946 0321.
United States (Includes territories and possessions) United States Independent State in the World Washington, DC US AK 02 1950-01-01 An organized territory on May 11, 1912 and the 49th state of the U.S. on January 3, 1959. 1 2 201 Hawaii United States (Includes territories and possessions) United States Independent State in the World Washington, DC