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Original statewide area code until 1957, when area code 509 was created for Eastern Washington. Further splits in 1995 to create area code 360 for most of Western Washington, and 1997 to form area codes 253 and 425. 564 will be added to the 206 area in 2025. 509: January 1, 1957 [1] Eastern Washington, including Spokane, the Tri-Cities, Yakima ...
Area codes in California (25 P) Area codes in Colorado (4 P) ... Area codes in Washington (state) (7 P) Area codes in West Virginia (1 P) Area codes in Wisconsin ...
From 1947 to 1957, all of Washington state was assigned area code 206 for routing long-distance telephone calls in Operator Toll Dialing.In 1957, the numbering plan area (NPA) was reduced to just the western part of the state, with most of the state east of the Cascade Mountains becoming area code 509.
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 ...
Washington (Olympia, Vancouver, Bellingham, Bremerton, Port Angeles, Aberdeen, and most of western Washington, except the Seattle metropolitan area) January 15, 1995 split of 206
The state of California was divided into three numbering plan areas (NPAs) with distinct area codes: 213, 415, and 916, for the southern, central, and northern parts of the state, respectively. [1] As of July 2023, California has 38 active area codes.
List of Washington (state) area codes; 0–9. Area code 206; Area code 253; Area code 360; Area code 425; Area code 509; Area code 564
Area code 509 is the telephone area code in the North American Numbering Plan (NANP) for the eastern part of the U.S. state of Washington. The numbering plan area (NPA) roughly comprises the state east of the Cascade Mountains, and includes Spokane, the Tri-Cities (Richland, Pasco, and Kennewick), Ellensburg, Yakima, Walla Walla, and Wenatchee ...