Washington Area Codes – Area Code List & Map

Washington is Officially using 6 Washington Area Codes. In Which 1 Of Them Are Overlay Codes. Washington originally has one Area Codes 206 Which Covers The Entire State, when the numbering system was established in 1947. After Increasing Population And Telephone use to need a further Area Code to meet the demand 5 other Washington Area Codes Are Establish. The most recently added was 564 in 2017 as an overlap of 360 And Today Area Code 360 Is the Most Populated Areas with 3.7 million of the state 26.8 million residents.

Washington Area Codes:-

The Regions Which Are Currently Served By The Washington Area Codes:-

206 – Vashon Island, Mercer Island, Bainbridge Island, and parts of the Seattle metro area from Des Moines to Woodway.

253 – It currently serves Federal Way and the western half of Pierce County.

360 – Western Washington outside the greater Seattle metropolitan area, including the capital, Olympia

425 – north to Everett, and south to Maple Valley, north and east of Seattle, especially the Eastside, stretching east to Snoqualmie Summit ski resort (most of which is in Kittitas County).

509 – Yakima, Walla Walla, Eastern Washington, including Spokane, the Tri-Cities, and Wenatchee.

564 – Western Washington, including Seattle-Tacoma metropolitan area

History & Changes Of Washington Area Codes

In 01/01/1947 – Area code 206 was set into service. In 1957 area code 206 was divided to form area code 509. Again In 1995 area code 206 was divided to develop area code 360. In 1997 area code 206 was split to create area codes 253 and 425.

On 01/01/1957 – Area code 509 was set into service. Area code 509 was created from a division of area code 206.

In 01/15/1995 – Area code 360 was placed into service. Area code 360 was created from a division of area code 206.

In 04/27/1997 – Area code 253 was assigned into service. Area code 253 was formed from a division of area code 206.

In 04/27/1997 – Area code 425 was settled into service. Area code 425 was created from a division of area code 206.

In 08/28/2017 – Area code 564 was set into service as overlap of area code 360.

Washington Area Codes

What Is Area Code?

Area code is a three-digit code in which US and other countries are divided. It is Also a local telephone dialing code where They Call each other With These Codes.

Why are area codes added?

When The Current Area Codes Expires Or Increase in the use of cellular phones, modems, and Internet access It Creates Problems. So That why Area Codes Are Added And each area code has a potential capacity of about 8 million unique phone numbers


Once The new Area Codes Rae assigned there is usually a 6 Months Period To Move. At that time Customers Are Encouraged To Use The Code But Seven Digit Dialling is Allowed. After 6 Months customers are required to use the new telephone no.

Also, See Other Area Codes

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