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Area code 206 was one of the original North American area codes assigned in 1947, when it served the entire state of Washington. In 1957, area code 509 was assigned for the eastern two-thirds of Washington in a flash-cut , with the split roughly following the Cascade Mountains .
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 ...
2 Area codes by country, state, province, and regions. ... 206: Washington (Seattle area) 1947: created for all of Washington; 1957: split to create 509;
List of Washington, D.C., area codes This page was last edited on 23 June 2024, at 21:03 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4. ...
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
Quick Take: List of Scam Area Codes. More than 300 area codes exist in the United States alone which is a target-rich environment for phone scammers.
Area code 564 is intended to eventually overlay other western Washington NPAs (206, 253, and 425) when demand requires numbering relief action. [5] Beginning July 29, 2017 all calls in western Washington required ten-digit dialing .
This is a list of future area codes in the North American Numbering Plan (NANP) ... 206: Washington: 2026 – 1st Qtr: April 5, 2025 ...