425 area code: location, time zone and numbers
Seattle, Washington uses 425, a US telephone area code that has been in service since 1997.
- Location
- Seattle, Washington
- Service began
- 1997
- Local time zone
- Pacific time zone
- Overlay
- None: that area has only this one code
- Calling locally
- 10-digit dialing
- Rate centre list
- 14
- When the code is projected to run out
- 2044
- Country prefix
- +1 (United States)
Sources: NANPA public reports, the area code report and the rate-centre report, file dated 11/01/2026; the exhaust year comes from NANPA projections 2026-1 (April 2026). We are not an official NANPA site.
Get a number in the 425 code
There are two routes to a 425 number. A provider hands out a new number with its plan. That number is picked at sign-up from the numbers the provider holds in the code. Numbers a seller already holds are listed for a one-time price, often with a pattern, and you then transfer that number to a provider.
Providers, sorted by first-year cost
| Provider | Cheapest plan | First year | Link |
|---|---|---|---|
 Free app | Basic (Just for me), free | $0 | Open Google Voice |
 Free app | Free plan, free | $0 | Open TextNow |
 Developer API | Pay-as-you-go local number, $1.15 a month | $13.80 | Open Twilio |
 Second-number app | Standard, $3.99 a month billed yearly | $47.99 | Open Burner |
 Toll-free specialist | Solo, $6.99 a month billed yearly | $84 | Open UniTel Voice |
 Second-number app | Deluxe (local number), $6.99 a month billed yearly | $102.88 | Open GoDaddy Conversations (formerly Smartline) |
Sellers listing local numbers
| Seller | What it sells | Listed price | Monthly fee | Link |
|---|---|---|---|---|
 Marketplace | Local numbers | From $9 one-time | None stated | Search at Exclusive Digits |
 Marketplace | Local and toll-free | From $9.95 one-time | $2.99 a month | Search at NumberBarn |
 Number broker | Local and toll-free | From $99 one-time | None stated | Search at RingBoost |
 Number broker | Local and toll-free | From $100 one-time | None stated | Search at PhoneNumberExpert |
| 212areacode.comNumber broker | Local numbers | From $150 one-time | None stated | Search at 212areacode.com |
Some sellers and providers may pay us a referral fee. The order does not change; first-year cost is what sets it. How we make money
Places in the 425 area code
For 425, NANPA lists 14 rate centres. Each one is a local calling area where numbers get assigned:
Snoqualmie Pass, Silverlake, Renton, North Bend, Maple Valley, Kirkland, Issaquah, Halls Lake, Fall City, Everett, Carnation, Bothell, Bellevue, Ames Lake.
Other related area codes
425 area code questions
Which area does 425 cover?
In Seattle, Washington, 425 rings around the Seattle-Tacoma-Bellevue, WA area.
Which country code does a 425 number use?
+1. Part of the North American Numbering Plan, 425 means you dial +1 425 plus the 7-digit number when calling from abroad.
What time is it in the 425 area code?
Pacific is the time zone for 425.
Who calls using a 425 number?
Homes, mobiles and local businesses use this code, and so do callers who fake a local number. When a 425 number shows on your screen, it shows where the number was assigned, rather than who is calling.