NPA-NXX - 860-309

This is the 860-309 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. 860
3. 860-309

The 860-309 subcode mainly covers Harwinton in Litchfield county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Connecticut 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 Connecticut office.
Recently there have been an increase in reported calls, we've had over 189927 comments across our systems for the 860-309 subcode.