Prefix overview
Phone numbers in prefix 831-521
This page covers the 831-521 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
831-521
RATE CENTER
MONTEREY
CARRIER
NEW CINGULAR WIRELESS PCS, LLC
CA
Prefix range
The prefix 831-521 includes numbers from 8315210000 to 8315219999.
This range is associated with the MONTEREY rate center and was originally assigned to NEW CINGULAR WIRELESS PCS, LLC.
Numbers in this prefix
20 numbers