Prefix overview
Phone numbers in prefix 657-231
This page covers the 657-231 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
657-231
RATE CENTER
SANTA ANA
CARRIER
AT&T ENTERPRISES, LLC
CA
Prefix range
The prefix 657-231 includes numbers from 6572310000 to 6572319999.
This range is associated with the SANTA ANA rate center and was originally assigned to AT&T ENTERPRISES, LLC.
Numbers in this prefix
20 numbers