The 564 area code is a telephone area code serving Western Washington state, including metropolitan Seattle. To start a free reverse phone lookup, simply enter the full 10-digit number (including the 564 area code) below and access available caller information such as name, address, and more.
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Area code 564 covers Western Washington.
Area code 564 is an overlay to area codes 206 and 360. Area code 564 was first proposed in 1999, but implementation was delayed until 2017 when it was installed as an overlay to numbering plan area (NPA) 360. In 2023, area code 206 was approved for expansion with area code 564. Ten-digit dialing has been mandatory in all of western Washington since July 29, 2017.
Area code 564 is a General Purpose Code which was placed in service on January 1, 1947.
Our reverse phone lookup will analyze the three-digit prefix of any 564 area code phone number and will show which telecommunications company and rate center it was initially assigned to. This prefix code data may help to determine the U.S. carrier, Washington geographic region, and local calling area associated with the phone number.
| Company | Number of Prefixes |
|---|---|
| ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 1 |
| Rate Center | Number of Prefixes |
|---|---|
| VANCOUVER | 1 |
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