Prefix overview
Phone numbers in prefix 831-251
This page covers the 831-251 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
831-251
RATE CENTER
APTOS
CARRIER
NEW CINGULAR WIRELESS PCS, LLC
CA
Prefix range
The prefix 831-251 includes numbers from 8312510000 to 8312519999.
This range is associated with the APTOS rate center and was originally assigned to NEW CINGULAR WIRELESS PCS, LLC.
Numbers in this prefix
20 numbers