Area codes and 10 digit dialing
In 2017 a new area code will be introduced to our state. New area code 564 will start being distributed in the fall of 2017 to new numbers in the 360 area code.
Area code number 564, will be available to all of western Washington including the 360, 206, 253, and 425 area codes as numbers in those areas become exhausted.
To implement the new area code, the Utilities and Transportation Commission also approved mandatory 10-digit dialing for all western Washington area codes by the fall of 2017. This will require callers to dial all 10 digits of a telephone number, including area code, when making local calls.
Read more about it at the Commission’s web site.