509 area code
Area code 509 is in Washington. It covers Spokane, Spokane Valley, Yakima and 263 other places: 255 ZIP codes in Spokane, Yakima, Benton and 18 other counties. Local time there is , Pacific Time. In service since 1957, with no overlay.
- State
- Washington
- Time zone
- Pacific
- Largest city
- Spokane
- Overlays
- none
- In service since
- 1957
- Rate centres
- 119
- Prefixes assigned
- 763 (7,630,000 numbers)
NANPA has relief planning under way for 509: its numbers are running out, and a new overlay or split is being prepared.
Who calls from a 509 number
NANPA records the carrier each block of 509 numbers is assigned to. Of the 7.0 million 509 numbers assigned, 38% are with mobile carriers (Verizon Wireless, AT&T Mobility and T-Mobile); 31% with cable, internet-calling, business and other carriers (Onvoy); 30% with local phone companies (Qwest (CenturyLink) and Ziply Fiber).
That is who the numbers were assigned to: people keep their number when they change carrier, so any one number may have moved since.
| Carrier | Kind | Share |
|---|---|---|
| Qwest (CenturyLink) | Landline | 16% |
| Onvoy | Cable, VoIP, other | 15% |
| Verizon Wireless | Mobile | 14% |
| AT&T Mobility | Mobile | 12% |
| T-Mobile | Mobile | 10% |
| Ziply Fiber | Landline | 7% |
An area code says where a number was issued, not where the caller is: people keep their numbers when they move, and caller ID can be set to show any number, which the FCC calls spoofing. If a call you did not expect asks for money or personal details, the FCC advises hanging up and calling the company back on a number you look up yourself. Unwanted calls can be reported to the FTC at ReportFraud.ftc.gov.
Places in area code 509
The 107 places with a telephone rate centre of their own using 509, largest first. Each links to its ZIP codes.
Nearby places using 509
These places have no rate centre of their own in NANPA's records; the nearest one uses 509. Near an area-code boundary that can be wrong for part of a town.
- Spokane Valley
- Greenacres
- West Richland
- Veradale
- East Wenatchee
- Airway Heights
- Colbert
- Fairwood
- Terrace Heights
- College Place
- Nine Mile Falls
- Clarkston Heights-Vineland
- Mead
- Union Gap
- Country Homes
- Otis Orchards
- Finley
- Otis Orchards-East Farms
- West Clarkston-Highland
- Suncrest
- Town and Country
- Chattaroy
- Moxee
- Cascade Valley
- Moses Lake North
- Elk
- Chelan
- Ahtanum
- Sunnyslope
- Burbank
- Cashmere
- Zillah
- Fairchild AFB
- Fairchild Air Force Base
- Gleed
- Desert Aire
- Orondo
- Okanogan
- Summitview
- Carson
- Walla Walla East
- Malaga
- Millwood
- Garrett
- Royal City
- Peshastin
- Ford
- Lakeview
- Valleyford
- Manson
- Rock Island
- South Wenatchee
- Kittitas
- Eltopia
- Basin City
- West Pasco
- North Bonneville
- Dryden
- Grand Coulee
- Underwood
ZIP codes in area code 509
255 ZIP codes in 216 towns, by the town each is mailed to, largest first. Each links to its own page.
Where 509 numbers are issued
NANPA's rate centres with the most 509 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.
| Rate centre | Place | Prefixes |
|---|---|---|
SPOKANE | Spokane | 214 |
YAKIMA | Yakima | 60 |
KENNEWICK | Kennewick | 42 |
WENATCHEE | Wenatchee | 39 |
PASCO | Pasco | 26 |
WALLAWALLA | Walla Walla | 23 |
Counties
The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.
- Spokane County (52)
- Yakima County (24)
- Benton County (11)
- Franklin County (6)
- Grant County (14)
- Chelan County (11)
- Walla Walla County (8)
- Whitman County (22)
- Kittitas County (8)
- Douglas County (8)
- Okanogan County (18)
- Stevens County (16)
- Adams County (5)
- Klickitat County (14)
- Asotin County (3)
- Pend Oreille County (6)
- Lincoln County (12)
- Ferry County (9)
- Skamania County (5)
- Columbia County (2)
- Garfield County (1)
Which code covers where you are now? What area code am I in? answers from your location.
Questions about area code 509
Where is area code 509?
Area code 509 is in Washington. It covers Spokane, Spokane Valley, Yakima and 263 other places: 255 ZIP codes in Spokane, Yakima, Benton and 18 other counties.
What ZIP codes are in area code 509?
255 ZIP codes, by the town each is mailed to: Spokane (28, 99201 to 99260), Yakima (7, 98901 to 98909), Kennewick (3, 99336 to 99338), Pasco (2, 99301 to 99302) and 212 more towns. The full list is on this page.
What time zone is area code 509 in?
Pacific time.
Is a 509 number a mobile or a landline?
It can be either. 38% of 509 numbers are assigned to mobile carriers and 30% to local phone companies (NANPA, 2026-10-10); the rest are with cable, internet-calling, business and paging carriers. A number keeps its area code when it moves to another carrier.
Does a 509 number mean the caller is in Washington?
Not necessarily. An area code says where the number was first issued. People keep their numbers when they move or switch carriers, and calling software can show any number, so a 509 call can come from anywhere.
Other area codes in Washington
All 6 Washington area codes, by area, with the cities each covers
Source: NANPA NPA database, central office code and thousands-block assignments, 2026-10-10. Places are matched to NANPA's rate centres by name; see sources.
Cite this page
zipcodes.pro. “Area code 509.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/509
Underlying data is public domain or openly licensed — sources, vintages and licences.