NPA-NXX - 520-350

This is the 520-350 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. 520
3. 520-350

The 520-350 subcode mainly covers Casa Grande in Pinal county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Arizona state. Many of the numbers in this subcode are Regular Landline registered to Gila Local Exchange Carrier. We hear they employ a large number of people in the Arizona office.
Recently there have been an increase in reported calls, we've had over 375770 comments across our systems for the 520-350 subcode.