Prefix overview
Phone numbers in prefix 310-390
This page covers the 310-390 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
310-390
RATE CENTER
SNMN MRVS
CARRIER
FRONTIER CALIFORNIA INC.
CA
Prefix range
The prefix 310-390 includes numbers from 3103900000 to 3103909999.
This range is associated with the SNMN MRVS rate center and was originally assigned to FRONTIER CALIFORNIA INC..
Numbers in this prefix
20 numbers