NPA-NXX - 310-503

This is the 310-503 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!

The 310-503 subcode mainly covers Compton in Los Angeles county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of California 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 California office.
Recently there have been an increase in reported calls, we've had over 9818605 comments across our systems for the 310-503 subcode.

Looking for a different number? Follow a link below to see our recently active.

956-688-5473 402-851-5259 657-549-1749 817-464-4336 860-245-3034
314-337-3505 413-595-8170 580-513-9047 470-362-8201 707-761-8727