NPA-NXX - 360-403

This is the 360-403 subcode (NPA-NXX) prefix page. Follow a prefix to find the number you are looking for. We divide our pages up to make them more user friendly to navigate!

1. Area Codes
2. 360
3. 360-403

The 360-403 subcode mainly covers Marysville in Snohomish county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Washington state. Many of the numbers in this subcode are Regular Landline registered to Frontier. We hear they employ a large number of people in the Washington office.
Recently there have been an increase in reported calls, we've had over 713335 comments across our systems for the 360-403 subcode.