NPA-NXX - 304-579

This is the 304-579 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. 304
3. 304-579

The 304-579 subcode mainly covers Martinsburg in Berkeley county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of West Virginia state. Many of the numbers in this subcode are Cellular (Dedicated) registered to At&t Mobility. We hear they employ a large number of people in the West Virginia office.
Recently there have been an increase in reported calls, we've had over 104169 comments across our systems for the 304-579 subcode.