Prefix overview
Phone numbers in prefix 657-279
This page covers the 657-279 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
657-279
RATE CENTER
SANTA ANA
CARRIER
ONVOY, LLC - CA
CA
Prefix range
The prefix 657-279 includes numbers from 6572790000 to 6572799999.
This range is associated with the SANTA ANA rate center and was originally assigned to ONVOY, LLC - CA.
Numbers in this prefix
20 numbers