509 area code — Spokane, WA geographic
- State
- Washington
- Major area
- Spokane
- Time zone
- Pacific
- In service since
- 1957-01-01
- Active prefixes
- 759
- Rate centers
- 119
- Carriers
- 65
- Projected exhaust
- 3Q 2029
The 509 area code covers Spokane, Washington, Pacific time zone, and dates back to January 1, 1957. Because of number portability and VoIP, the area code tells you where the number was issued, not where the caller is right now.
NANPA lists 759 active NXX prefixes in 509, assigned to 65 carriers. 564 of those prefixes are pooled — shared between carriers in thousands-number blocks. The code spans 119 rate centers (billing localities).
The dialing plan is 10D for home-NPA local calls and 10D across codes.
Among Washington codes, 509 stands out as covers more rate centers (119) than any other Washington area code, and projected by NANPA to exhaust its numbering capacity by 3Q 2029.
To check where a specific 509 number was issued, look up its six-digit prefix; to check who is actually calling, ignore the display and verify through an official callback number — caller ID is assertable and routinely spoofed.
Official projections put exhaust at 3Q 2029 — relief planning typically starts years ahead.
Largest localities in 509
| Locality (rate center) | Active prefixes | Also served by |
|---|---|---|
| Spokane | 214 | — |
| Yakima | 59 | — |
| Kennewick | 42 | — |
| Wenatchee | 38 | — |
| Pasco | 26 | — |
| Walla Walla | 23 | — |
| Ellensburg | 20 | — |
| Moses Lake | 19 | — |
| Richland | 17 | — |
| Sunnyside | 15 | — |
FAQ
Is 509 a toll-free number?
No. 509 is a geographic code; calls are billed like any other domestic call. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.
Will 509 run out of numbers?
NANPA's current forecast projects exhaust in 3Q 2029, so a new overlay is likely to be planned.
Why am I getting spam calls from 509 numbers?
Scammers spoof recognizable area codes so calls look local or familiar. A displayed 509 number does not prove the call originated there — see our guide to spotting spoofed calls.
Where is a 509 number from?
509 is assigned to Spokane and surrounding areas of Washington in the Pacific time zone. The three digits after the area code (the prefix) narrow it down to a rate center.