Area code 564: Washington
Area code 564 is a US state area code for Washington, on Pacific Time. It has 92 prefixes in service across 32 rate centers, the largest being Bremerton, Vancouver and Olympia. It shares its area with 206, so local numbers there can start with any of them. Local calls there take 10 digits.
Local time in area code 564
America/Los_Angeles
Prefixes in service
92 of 792 possible
32 rate centers
Area code 564 facts
| Location | Washington, United States |
|---|---|
| Time zone | Pacific Time |
| Overlays | 206 |
| Split from | 360 |
| In service since | August 28, 2017 |
| 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 564?
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 564 rate centers with the most prefixes in service. 20 smaller ones aren't listed.
| Rate center | Prefixes |
|---|---|
| Bremerton | 17 |
| Vancouver | 13 |
| Olympia | 9 |
| Longview | 6 |
| Aberdeen | 5 |
| Centralia | 4 |
| Whatcom City | 4 |
| Silverdale | 3 |
| Marysville | 3 |
| Port Angeles | 2 |
| Buckley | 2 |
| Mount Vernon | 2 |
Source: NANPA central office code assignments, file dated 10/17/2026. Each prefix holds up to 10,000 numbers.
How do I dial a 564 number?
NANPA's dialling plan for 564: 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 564 | 564-555-0147 |
|---|---|
| From another US or Canadian area code | 1-564-555-0147 |
| From outside North America | +1 564 555 0147 |
| E.164, for CRMs and SMS tools | +15645550147 |
When did area code 564 start?
Area code 564 went into service on August 28, 2017, split from 360. Today 564 and 206 cover the same area as an overlay, which is why 10-digit dialling is needed for local calls there.
Tools for 564 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 564 number tells you where it was issued, not what it is now.
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Area code 564 questions
- What state is area code 564?
- Area code 564 is in Washington, United States. Its largest rate centers by number of prefixes are Bremerton, Vancouver, Olympia, Longview and Aberdeen.
- What time zone is area code 564 in?
- Pacific Time.
- What area codes overlay 564?
- 206. 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 564 start?
- Area code 564 went into service on August 28, 2017, split from 360.
- Is a 564 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 564 have?
- 92 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.