NPA-NXX - 512-503

This is the 512-503 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. 512-503

The 512-503 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 Regular Landline registered to Central Texas Technologies Lp. 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 512-503 subcode.