NPA-NXX - 570-666

This is the 570-666 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. 570
3. 570-666

The 570-666 subcode mainly covers Williamsport in Lycoming county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Pennsylvania state. Many of the numbers in this subcode are Regular Landline registered to Coretel. We hear they employ a large number of people in the Pennsylvania office.
Recently there have been an increase in reported calls, we've had over 116111 comments across our systems for the 570-666 subcode.