Area code 360

Numbering plan areas of Washington, with 360 highlighted in red.

Area code 360 is a telephone area code in the North American Numbering Plan (NANP) for the part of Washington state outside metropolitan Seattle and west of the Cascade Mountains. The numbering plan area (NPA) serves all of western Washington outside urban King, Pierce, and Snohomish counties and Bainbridge Island, Prior to January 15, 1995, when the area code was put into service, the numbering plan area (NPA) was served by area code 206, Washington's original area code since 1947.

Since 2017, the numbering plan area has been part of an overlay complex with area code 564, which also overlays 206.