Area code 360 correlates with a section of Washington State around Seattle, Washington, as of 2015. The coverage area extends over the western portion of Washington State, including the entire coast and stretching from the border with Canada to the border with Oregon.
Area code 360's coverage extends over about a third of the state. Other major cities in area code 360 include Bellington, Bremerton, Lacey, Longview and Marysville. The area code also includes coverage for North Marysville, Mount Vernon, Olympia and Vancouver. First put into service starting on February 11th, 1995, area code 360 is in the Pacific time zone.