| General Information | |
|---|---|
| Country | United States |
| State/Province | Washington |
| Major City | Spokane |
| Time Zone | Pacific (UTC-08:00) |
| Current Local Time | 04:50 |
| Prefix | County | Primary City |
|---|---|---|
| 509-428 | Adams | Ritzville |
| 509-429 | Okanogan | Omak |
| 509-430 | Franklin | Pasco |
| 509-431 | Ferry | Republic |
| 509-432 | Whitman | Pullman |
| 509-433 | Douglas | East Wenatchee |
| 509-434 | Spokane | Spokane |
| 509-435 | Spokane | Spokane |
| 509-436 | Douglas | East Wenatchee |
| 509-438 | Benton | Kennewick |
| 509-439 | Yakima | Sunnyside |
| 509-440 | Benton | Kennewick |
| 509-442 | Pend Oreille | Ione |
| 509-443 | Spokane | Spokane |
| 509-444 | Spokane | Spokane |
| 509-445 | Pend Oreille | Cusick |
| 509-446 | Pend Oreille | Metaline Falls |
| 509-447 | Pend Oreille | Newport |
| 509-448 | Spokane | Spokane |
| 509-449 | Douglas | Bridgeport |
| 509-452 | Yakima | Yakima |
| 509-453 | Yakima | Yakima |
| 509-454 | Yakima | Yakima |
| 509-455 | Spokane | Spokane |
| 509-456 | Spokane | Spokane |
| 509-457 | Yakima | Yakima |
| 509-458 | Spokane | Spokane |
| 509-459 | Spokane | Spokane |
| 509-460 | Benton | Kennewick |
| 509-461 | Spokane | Spokane |
| 509-462 | Spokane | Spokane |
| 509-463 | Spokane | Spokane |
| 509-464 | Spokane | Spokane |
| 509-465 | Spokane | Spokane |
| 509-466 | Spokane | Spokane |
| 509-467 | Spokane | Spokane |
| 509-468 | Spokane | Spokane |
| 509-469 | Yakima | Yakima |
| 509-470 | Douglas | East Wenatchee |
| 509-471 | Spokane | Spokane |
| 509-472 | Spokane | Spokane |
| 509-473 | Spokane | Spokane |
| 509-474 | Spokane | Spokane |
| 509-475 | Spokane | Spokane |
| 509-476 | Okanogan | Loomis |
| 509-477 | Spokane | Spokane |
| 509-478 | Whitman | Thornton |
| 509-479 | Spokane | Spokane |
| 509-480 | Yakima | Yakima |
| 509-481 | Spokane | Spokane |