NPA-NXX - 512-921

This is the 512-921 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. 512
3. 512-921

The 512-921 subcode mainly covers Austin in Travis county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Texas 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 Texas office.
Recently there have been an increase in reported calls, we've had over 1024266 comments across our systems for the 512-921 subcode.