NPA-NXX - 336-621

This is the 336-621 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. 336
3. 336-621

The 336-621 subcode mainly covers Greensboro in Guilford county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of North Carolina state. Many of the numbers in this subcode are Regular Landline registered to At&t Southeast. We hear they employ a large number of people in the North Carolina office.
Recently there have been an increase in reported calls, we've had over 488406 comments across our systems for the 336-621 subcode.