Area code 206: Washington
Area code 206 is a US state area code for Washington, on Pacific Time. It has 751 prefixes in service across 5 rate centers, the largest being Seattle, Bainbridge Island and Des Moines. It shares its area with 564, so local numbers there can start with any of them. Local calls there take 10 digits.
Local time in area code 206
America/Los_Angeles
Prefixes in service
751 of 792 possible
5 rate centers
Area code 206 facts
| Location | Washington, United States |
|---|---|
| Time zone | Pacific Time |
| Overlays | 564 |
| In service since | 1947, when the plan began |
| Local calls | 10 digits; toll calls 1 + 10 digits |
| Carrier | Not shown. An area code is where a number was issued; numbers port between carriers. Check line type |
Which cities and towns use area code 206?
NANPA records each prefix against a rate center, the local billing area a number belongs to, usually named after its main town. These are the 206 rate centers with the most prefixes in service.
| Rate center | Prefixes |
|---|---|
| Seattle | 675 |
| Bainbridge Island | 28 |
| Des Moines | 21 |
| Richmond Beach | 19 |
| Vashon | 8 |
Source: NANPA central office code assignments, file dated 10/17/2026. Each prefix holds up to 10,000 numbers.
How do I dial a 206 number?
NANPA's dialling plan for 206: local calls inside the code take 10 digits, toll calls 1 + 10 digits. From another area code, dial 1 first. From abroad, use +1. The examples use 555-0147, from a range reserved for fictional numbers.
| Local call inside 206 | 206-555-0147 |
|---|---|
| From another US or Canadian area code | 1-206-555-0147 |
| From outside North America | +1 206 555 0147 |
| E.164, for CRMs and SMS tools | +12065550147 |
When did area code 206 start?
Area code 206 is one of the original codes NANPA lists from 1947. Today 206 and 564 cover the same area as an overlay, which is why 10-digit dialling is needed for local calls there.
Tools for 206 numbers
- Area code lookup
Look up any code or a whole list of numbers, or find the codes for a state or city.
- Area code time zone
Local time for a list of numbers, with a callable-now flag.
- NPA-NXX lookup
Rate center and state for one prefix, a level below the area code.
- TCPA calling hours checker
Whether it's inside the federal 8 a.m. to 9 p.m. calling window there now.
Next step
A 206 number tells you where it was issued, not what it is now.
Mobiles, landlines and VoIP lines share area codes, and numbers move between carriers. A live line-type and carrier lookup on every number in your list says which is which, and that decides which calling and texting rules apply. It's in the Email + Phone plan.
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Area code 206 questions
- What state is area code 206?
- Area code 206 is in Washington, United States. Its largest rate centers by number of prefixes are Seattle, Bainbridge Island, Des Moines, Richmond Beach and Vashon.
- What time zone is area code 206 in?
- Pacific Time.
- What area codes overlay 206?
- 564. An overlay adds a new code to the same area instead of splitting it, so neighbours can have different area codes and local calls need 10 digits.
- When did area code 206 start?
- Area code 206 is one of the original codes NANPA lists from 1947.
- Is a 206 number a cell phone or a landline?
- The area code can't tell you. In the US and Canada mobiles, landlines and VoIP lines share area codes and prefixes, and numbers move between carriers and line types. Only a live line-type lookup answers it for one number.
- How many phone numbers does area code 206 have?
- 751 of its 792 possible prefixes are in service, and each prefix holds up to 10,000 numbers. That counts prefixes assigned to carriers, not numbers in use.
Other area codes in Washington
Sources
Location, overlays, in-service date and dialling plan: NANPA NPA database, file dated 10/16/2026. Prefixes and rate centers: NANPA central office code assignments, 10/17/2026. Time zones mapped to the IANA time zone database. By the SimpleVerifier Team; how we build these pages.