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The U.S. state of Washington has six telephone area codes. The state initially used a single area code until it was divided in 1957 with the creation of area code 509 to serve Eastern Washington. In 1995, 206 was split again to serve just the Puget Sound region after area code 360 was created for the remainder of Western Washington.
List of Washington area codes may refer to: List of Washington (state) area codes; List of Washington, D.C., area codes This page was last edited on 23 ...
Retired. Area is part of WAC 791 that starts on 7/1/1976. 1 761 76101 Okinawa/Ryukyu Islands Far East Okinawa/Ryukyu Islands Dependency and Area of Special Sovereignty United States 1950-01-01 1972-04-30 Retired. Area is now under WAC 736. The United States returned control of the islands to Japan in May 1972. 1 764 76401 Pakistan Far East Pakistan
Area codes are also assigned for non-geographic purposes. The rules for numbering NPAs do not permit the digits 0 and 1 in the leading position. [1] Area codes with two identical trailing digits are easily recognizable codes (ERC). NPAs with 9 in the second position are reserved for future format expansion.
Area code 425; Area code 509; Area code 564 This page was last edited on 24 December 2023, at 10:17 (UTC). Text is available under the Creative Commons ...
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.
This is a list of future area codes in the North American Numbering Plan (NANP) that are in the planning stages for relief of central office code exhaustion in the given numbering plan areas (NPAs). The dates are subject to change during implementation as published in the official NANP Administrator Planning Letters .
Area code 564 is a telephone overlay area code in the North American Numbering Plan (NANP) for Western Washington state, including metropolitan Seattle. The area code was first proposed in 1999 to relieve telephone number shortages in area code 360 , but implementation was delayed until 2017, when it was installed for an overlay complex that ...