Washington Area Codes
Data last updated: March 10, 2026
Area Codes in Washington
| NPA | Major Cities | Status | Exchanges | Overlay |
|---|---|---|---|---|
| 206 | Seattle, Poulsbo, Tukwila | Active | 783 | Yes |
| 253 | Seattle, Tacoma, Poulsbo | Active | 783 | Yes |
| 360 | Seattle, Portland, Poulsbo | Active | 786 | Yes |
| 425 | Seattle, Bothell, Everett | Active | 781 | No |
| 509 | Spokane, Kennewick, Yakima | Active | 782 | No |
| 564 | Seattle, Portland, Poulsbo | Active | 785 | Yes |
Top Carriers in Washington
| Carrier | OCN | NXX Count |
|---|---|---|
| QWEST CORPORATION | 9638 | 754 |
| T-MOBILE USA, INC. | 6529 | 414 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | 297 |
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 270 |
| ONVOY, LLC - WA | 483E | 265 |
| ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4324 | 231 |
| LEVEL 3 COMMUNICATIONS, LLC - WA | 6121 | 209 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - WA | 7146 | 130 |
| ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | 130 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 105 |