Seattle, Washington

Where Is Area Code 564?

Area code 564 is in Washington state. It serves western Washington, including Seattle and other cities in the Puget Sound region. It is not limited to one city.

Area code 564 works as an overlay on top of existing area codes in several parts of western Washington. It overlays 206 in Seattle, 253 in Tacoma, 360 in much of western Washington outside the Seattle metro core, and 425 in the Eastside and north suburban area. Major cities in the broader 564 service area include Seattle, Tacoma, Bellevue, Everett, Bellingham, Vancouver, and Olympia.

The area code covers communities near Puget Sound and extends across many counties in western Washington. Notable places in this region include downtown Seattle, the Space Needle, Elliott Bay, Mount Rainier’s broader regional viewscape, and the Olympic Peninsula region served through the 360 overlay area.

History of Area Code 564

Area code 564 was established in 2017. The Washington Utilities and Transportation Commission approved it as a new overlay area code to add more phone numbers in western Washington.

Area code 564 first went into service on August 28, 2017, as an overlay for the 360 area code region. The overlay later expanded. On March 9, 2025, area code 564 became an all-services overlay for the 206, 253, and 425 area code regions as well, which made 10-digit dialing standard across those western Washington calling areas.

Key Facts About Area Code 564

• Area code 564 is in the state of Washington.
• Area code 564 serves Seattle as part of an overlay on area code 206.
• Area code 564 also overlays area codes 253, 360, and 425 in western Washington.
• Area code 564 is in the Pacific Time Zone.
• Area code 564 first entered service on August 28, 2017.
• Area code 564 is an overlay area code, not one of Washington’s original area codes.
• Area code 564 covers parts of the Seattle, Tacoma, Bellevue, Everett, Olympia, Bellingham, and Vancouver regions.
• The 564 overlay region includes major institutions and landmarks such as the University of Washington in Seattle and the Washington State Capitol in Olympia.

Frequently Asked Questions

What state is area code 564 in?

Area code 564 is in Washington state.

What major cities use area code 564?

Major cities in the 564 overlay area include Seattle, Tacoma, Bellevue, Everett, Olympia, Bellingham, and Vancouver.

Is area code 564 a toll-free number?

No. Area code 564 is a geographic area code in Washington.