Area Code 360 History:
Area code 360 was put into service. Area code 360 was created from a split of area code 206.
Counties in Washington within area code 360 include:
Clallam County, Clark County, Cowlitz County, Grays Harbor County, Island County, Jefferson County, King County, Kitsap County, Lewis County, Mason County, Pacific County, Pierce County, San Juan County, Skagit County, Snohomish County, Thurston County, Wahkiakum County, and Whatcom County.
Major cities or places in Washington within area code 360 include:
Area code 360 serves most of western Washington except for the Seattle metropolitian area which is served by area code 206. Area code 360 serves the larger cities and communities of Bellingham, Bremerton, Lacey, Longview, Marysville, Mount Vernon, Olympia, Port Angeles, and Vancouver in addition to many smaller communities.