Prefix overview
Phone numbers in prefix 310-443
This page covers the 310-443 prefix in the United States. It shows where numbers come from, which carrier is linked to the range, and how this block is structured.
If you are looking for a specific number, you can continue to its dedicated phone page. Otherwise, this page helps you understand the broader number block behind it.
PREFIX
310-443
RATE CENTER
W ANGELES
CARRIER
FRONTIER CALIFORNIA INC.
CA
Prefix range
The prefix 310-443 includes numbers from 3104430000 to 3104439999.
This range is associated with the W ANGELES rate center and was originally assigned to FRONTIER CALIFORNIA INC..
Numbers in this prefix
20 numbers