Area Code 206
(360 and 564)
Area Code 206 History:
Area code 206 was officially put into service on 01/01/1947. Area code 206 was one of the original area codes assigned to the state of Washington. In 1957 area code 206 was split to form area code 509. In 1995 area code 206 was split to form area code 360. In 1997 area code 206 was split to form area codes 253 and 425.
On June 10, 2025 area code 564 will be expanded to serve area code 206 as an overlay. Currently area code 564 serves as an overlay of area code 360.
Counties in Washington officially within area code 206 include:
King County and Kitsap County.
Major cities or places in Washington officially within area code 206 include:
Area code 206 serves much of the Seattle metropolitan area and includes the larger communities of Bainbridge Island, Burien, Des Moines, Mercer Island, Seattle, Shoreline, and White Center in addition to many smaller communities.