NPA-NXX - 580-309

This is the 580-309 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. 580
3. 580-309

The 580-309 subcode mainly covers Clinton in Custer county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Oklahoma 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 Oklahoma office.
Recently there have been an increase in reported calls, we've had over 27469 comments across our systems for the 580-309 subcode.