Quick answer
Washington has 6 active geographic area codes covering Seattle, Olympia, Tacoma. The most-recognized codes are 206, 509, 360, serving Seattle and the Western Washington region.
- Total codes
- 6
- Top metro
- Seattle
- Time zone
- PT
- Largest code
- 564 (Seattle)
- NXX prefixes in use
- 3,530
- Most saturated
- 360 (~99%)
Area codes in Washington
Washington is served by 6 active geographic area codes in the North American Numbering Plan. These codes were assigned between 1947 and 2017 as population and call demand grew across the state.
Across Washington's 6 area codes, our data counts 3,530 assigned central-office (NXX) prefixes in service. The most heavily loaded is 360 (Olympia), with about 99% of its ~792 usable prefixes assigned, and 3 of the state's codes sit at 90%+ capacity — which is why overlay codes keep being added. See the full NXX prefix allocation analysis across US area codes. (Prefix data: localcallingguide.com / NANPA, 2026.)
| Code | Primary City | Region | Established | Overlay Codes | Population |
|---|---|---|---|---|---|
| 206 | Seattle | Seattle Metro | 1947 | 564 | 1,500,000 |
| 253 | Tacoma | South Puget Sound | 1995 | 564 | 1,000,000 |
| 360 | Olympia | Western Washington | 1995 | 564 | 1,200,000 |
| 425 | Bellevue | Seattle Eastern Suburbs | 1995 | — | 900,000 |
| 509 | Spokane | Eastern Washington | 1947 | — | 900,000 |
| 564 | Seattle | Western Washington | 2017 | 206, 253, 360, 425 | 7,700,000 |
Time zones in Washington
All area codes in Washington fall in the PT time zone.
- PT — area codes: 206, 253, 360, 425, 509, 564
Top metros and their area codes
Below are the primary cities in Washington and the area codes that serve each metro. Cities with multiple codes share geography due to overlay assignments added as demand grew.
Washington area code coverage by region
This regional breakdown maps each Washington area code to the part of the state it serves. Washington's codes split across 5 regions — pick the code that matches the area you want to reach.
- Eastern Washington — area code: 509 (Spokane)
- Seattle Eastern Suburbs — area code: 425 (Bellevue)
- Seattle Metro — area code: 206 (Seattle)
- South Puget Sound — area code: 253 (Tacoma)
- Western Washington — area codes: 360, 564 (Olympia, Seattle)
Why get a local Washington number?
A Washington area code number gives your business three core advantages:
- Local trust signal. Customers in Washington recognize local area codes as their own. A familiar caller ID builds immediate credibility for service businesses, sales teams, and patient communication.
- Higher answer rate. Calls from a local area code are answered far more often than toll-free or out-of-area numbers — industry data puts the lift at 20–40%. That difference matters most for outbound sales, appointment confirmations, and service callbacks.
- Targeted marketing. Advertising a local Washington number on print, radio, digital, and outdoor channels converts better than a national 800 number for audiences who prefer doing business locally.
How to get a Washington area code number with DialPhone
Setting up a Washington business number takes under 10 minutes:
- Sign up for a DialPhone plan. Choose any plan starting at $24/user/month. Free 14-day trial, no credit card required.
- Search available Washington numbers. Filter the DialPhone number inventory by state, area code, city, or number pattern.
- Choose your number and configure. Assign your new Washington number to a user or team, configure call routing, voicemail, AI receptionist, and business SMS.
- Port your existing number (optional). Already have a Washington number? Free number porting completes in 2 to 5 business days with zero service interruption.