| Washington | 
| State of Washington - Phone Code and Area Codes for Mobile, Whatsapp and Text Messages | 
| Phone and Whatsapp Codes in Washington / WA - | 
| Area Code : 509 Eastern | 
| Area Code : 206 Seattle | 
| Area Code : 425 Seattle east suburbs | 
| Area Code : 253 Tacoma | 
| Area Code : 360 Western | 
| Area Code : 564 (overlay 360) | 
| US Code List of Codes in USA. Area Code and Phone Information by City and State. |