NPA-NXX - 423-663

This is the 423-663 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. 423
3. 423-663

The 423-663 subcode mainly covers Huntsville in Scott county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Tennessee state. Many of the numbers in this subcode are Regular Landline registered to Highland Telephone Cooperative. We hear they employ a large number of people in the Tennessee office.
Recently there have been an increase in reported calls, we've had over 22228 comments across our systems for the 423-663 subcode.