The 509 area code covers Spokane, Yakima and 105 more places in Washington.
Area code 509 is in Washington, on Pacific Time. In the 509 area, phone numbers are given out most in Spokane County, then Yakima and Benton counties. It has been in service since 1957.
- Where
- 8 counties in Washington, mostly Spokane County, Yakima County and Benton County
- Time zone
- Pacific Time
- In service since
- 1957
- Shares its area with
- No other area code
- Prefixes in use
- 762
- How to dial
- Local calls need all 10 digits: 509-555-0142.
- Coming next
- NANPA is planning a new code for this area
Find out who called you from a 509 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (509) number is on today, use our free carrier lookup.
Works for US & Canada numbers. Enter a 10-digit number, e.g. (415) 555-0132.
Free & rate-limited. No signup required to try.
Spokane holds 28% of the phone prefixes in area code 509.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 762 prefixes in use shows where 509 numbers are actually given out.
- Spokane214 prefixes, 28%
- Yakima60 prefixes, 8%
- Kennewick42 prefixes, 6%
- Wenatchee39 prefixes, 5%
- Pasco26 prefixes, 3%
- Walla Walla23 prefixes, 3%
- Ellensburg21 prefixes, 3%
- Moses Lake19 prefixes, 2%
Also served: Richland, Sunnyside, Pullman and Clarkston and 95 smaller places.
Qwest (Lumen) holds the most phone number prefixes in area code 509: 130 of 762.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 762 prefixes in use in 509 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| Qwest (Lumen)Lumen's landline company | 130 | 17% |
| AT&T MobilityMobile network | 77 | 10% |
| CenturyLinkLandline company | 75 | 10% |
| Ziply FiberLandline company | 73 | 10% |
| T-MobileMobile network | 63 | 8% |
| Level 3 (Lumen)Lumen's business and wholesale network | 38 | 5% |
| 53 other carriers | 306 | 40% |
74% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
509 has covered the same ground since 1957.
1957
509 goes into service.
Now
NANPA is planning another new code for the 509 area.
A 509 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 509 are 425, 206 and 253.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
Washington has 5 other area codes.
These are the questions people ask most about area code 509.
Where is area code 509?
509 covers Spokane, Yakima, Kennewick and Wenatchee and 103 more places in Washington. In the 509 area, phone numbers are given out most in Spokane County, then Yakima and Benton counties.
What state is area code 509 in?
Washington. 509 is a Washington area code on Pacific Time.
What cities use area code 509?
The places holding the most 509 prefixes are Spokane, Yakima, Kennewick, Wenatchee, Pasco, Walla Walla, Ellensburg and Moses Lake, out of 107 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 509?
No single phone company owns 509. NANPA's records show Qwest (Lumen) holds the most 509 prefixes, 130 of 762, followed by AT&T Mobility and CenturyLink. Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 509 in?
509 is on Pacific Time.
When did area code 509 start?
509 went into service in 1957.
How do I dial a 509 number?
Local calls need all 10 digits: 509-555-0142.
Is 509 a toll-free number?
No. 509 is a regular area code for Spokane and Yakima in Washington, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 509?
The closest are 425 (Bellevue, Washington), 206/360/564 (Vancouver, Washington), 253 (Tacoma, Washington) and 503/971 (Portland, Oregon), measured between the centres of each area.
Who called me from a 509 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 509 a scam?
509 is a real Washington area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.