509 area code: Eastern Washington, time zone and cities
Area code 509 covers eastern Washington, roughly the part of the state east of the Cascade Mountains. It includes Spokane, Yakima, Wenatchee and the Tri-Cities.
Quick facts
- Location
- Eastern Washington
- State
- Washington
- Time zone
- Pacific TimeLocal time now:
- Overlay
- No. 509 is the only area code for its area.
- In service since
- 1957
Cities and places in area code 509
- Spokane
- Richland
- Pasco
- Kennewick
- Ellensburg
- Yakima
- Walla Walla
- Wenatchee
- Stevenson
Richland, Pasco and Kennewick are the Tri-Cities.
Area codes that share or border 509
509 has no overlay. It is the only area code for its area.
Nearby
- 208 ID
- 360 WA
- 425 WA
- 458 OR
- 541 OR
- 986 ID
Is a call from 509 a scam?
The area code alone says nothing about the caller. It shows where the number was set up. It does not show who is calling or where they are. The FTC says scammers can make any name or number show up on caller ID. This is called spoofing, and it can make a call look local when it comes from anywhere in the world.
Signs of a phone scam, from the FTC:
- The caller says you won a prize, but you have to pay to get it.
- The caller says you will be arrested or fined unless you pay right away. Real law enforcement and federal agencies do not call and threaten you.
- The caller insists you pay by gift card, wire transfer, cryptocurrency or a payment app.
- The caller says they are from a government agency and asks for your Social Security number.
What to do:
- If you get a robocall, hang up. Do not press any number, which could lead to more robocalls.
- Ask your phone carrier what call blocking it offers.
- Report unwanted calls at DoNotCall.gov. If you lost money, report it at ReportFraud.ftc.gov.
How to get a 509 phone number
For an AI agent or a business
Our API lines are real T-Mobile mobile numbers for texts, or for texts and calls over SIP, rented by the month. Add "area_code": "509" to an order to ask for 509 numbers.
The area code is a request and is not guaranteed. Numbers come from our stock and from the carrier, so some can have another area code. If the carrier cannot fill the request within about an hour, we send numbers from other area codes.
Numbers for AI agents and businesses
For your own phone
Our T-Mobile Talk & Text line asks where your number should come from at checkout. If you live in the 509 area, give your address, and we ask the carrier for a number local to your ZIP code. The carrier picks the area code, so a 509 number is not guaranteed.
Our Unlimited line has no area code choice.
Questions about area code 509
Where is area code 509?
Area code 509 covers eastern Washington, roughly the part of the state east of the Cascade Mountains. It includes Spokane, Yakima, Wenatchee and the Tri-Cities.
What time zone is area code 509 in?
Pacific Time.
Does area code 509 have an overlay?
No. 509 is the only area code for its area.
When did area code 509 start?
NANPA lists 509 as in service since 1957.
Is a call from area code 509 a scam?
The area code alone does not make a call a scam. It shows where the number was set up. The FTC says scammers can make any number show up on caller ID. If you get a robocall, hang up without pressing any number, and report unwanted calls at DoNotCall.gov.
How can I get a phone number with area code 509?
For an AI agent or a business, add "area_code": "509" to an API order. For your phone, if you live in the 509 area, give your address at checkout for our T-Mobile Talk & Text line and we ask the carrier for a number local to your ZIP code. Either way the area code is a request and is not guaranteed.
Sources: NANPA area code database, file of November 3, 2026 (state, time zone, overlays, year in service); Wikipedia, "Area code 509", revision of October 12, 2026 (area, places and neighbors); FTC, "Phone Scams" and "How To Block Unwanted Calls" (call advice). Checked November 3, 2026.