564 area code
Where the 564 area code is, its overlay and how to dial a +1 564 number from anywhere.
The 564 area code is in Washington, United States (Pacific (PT)). To call from abroad: +1 564 555-0123. It is an overlay, so all 10 digits are dialled.
The 564 area code is a geographic North American Numbering Plan (NANP) code covering Washington. It has been in service since 20-Sep-1999 and sits in the Pacific (PT) time zone.
How to dial a 564 number
+1 564 555-01231 564 555-0123564 555-0123Other Washington area codes
Frequently asked questions
Where is the 564 area code?
The 564 area code is in Washington, United States (Pacific (PT)).
Is 564 an overlay area code?
Yes. 564 overlays the same region as 206, 360, so callers dial all 10 digits.
Do I have to dial 10 digits for 564?
Yes — dial the area code plus the seven-digit number.
How do I call a 564 number from another country?
Dial your exit code (or +), then 1, then 564, then the number: +1 564 555-0123.
Source: NANPA numbering plan. An area code covers a region, not a precise address — a 564 number does not pinpoint a street or ZIP code.
Number holders in area code 564
Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 110 prefixes are in use in 564, shared by 23 companies. The largest holders:
| Company | Prefixes | Share |
|---|---|---|
| T-Mobile USA, Inc. | 22 | 20% |
| Cellco Partnership Dba Verizon Wireless | 13 | 12% |
| Onvoy, LLC | 12 | 11% |
| Multiple Ocn Listing | 9 | 8% |
| Teleport Communications America, LLC | 8 | 7% |
| Fractel, LLC | 7 | 6% |
Source: NANPA central office code assignments. A number keeps its original prefix when it is ported to another carrier.
Complaints about 564 numbers
- Reports to the FTC, last 30 days
- 142
- Recorded messages or robocalls
- 63%
- Rank among area codes
- #359 of 670
- Most reported subjects
- Other (59)
- Reducing your debt (credit cards, mortgage, student loans) (31)
- Dropped call or no message (14)
Period Aug 26 – Sep 24, 2026. These are the numbers shown on the caller ID of the reported calls; many are spoofed and do not belong to the real caller.
Source: US Federal Trade Commission, Do Not Call reported calls data (daily files).
All US area codes United States +1 Map of area code 564 — cities & rate centres