Seattle, WA Area Codes

Area codes serving Seattle

Seattle sits in Washington, part of the West region and the Pacific Time zone. Its numbers are spread across an overlay of 2 codes that all cover the same ground: 206, 564.

The original code is 206 (in service since 1947). As the area ran low on numbers, regulators added overlay codes on top instead of splitting the city, so longtime residents kept their numbers while new lines received a newer code.

Code	Area served	In service
206	Seattle and nearby communities in western King County, Washington	January 1, 1947
564	Western Washington, overlaying both 206 (Seattle) and 360 (outside the Puget Sound core)	August 28, 2017

Nearby cities sharing these area codes

• Shoreline
• Burien
• SeaTac
• Tukwila
• Mercer Island
• Lake Forest Park
• Bainbridge Island
• Normandy Park
• Vancouver
• Bellingham
• Olympia
• Marysville
• Bremerton

How to pick an area code for a new number

When you activate a new line in Seattle, the carrier assigns whichever code has numbers available — you usually can't choose. If a specific code matters to you (for example the prestige of 206), ask the carrier whether any blocks remain, or request a number transfer. All codes here dial identically and cost the same.

Dialing in Seattle

Because Seattle is an overlay area, 10-digit dialing is mandatory: always dial the area code plus the seven-digit number, even for a neighbor. See 10-digit dialing and overlay area codes for the background. For every code in Washington, visit the Washington area codes page.