Prefix overview
Phone numbers in prefix 657-384
This page covers the 657-384 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
657-384
RATE CENTER
WESTMINSTR
CARRIER
NEW CINGULAR WIRELESS PCS, LLC
CA
Prefix range
The prefix 657-384 includes numbers from 6573840000 to 6573849999.
This range is associated with the WESTMINSTR rate center and was originally assigned to NEW CINGULAR WIRELESS PCS, LLC.
Numbers in this prefix
20 numbers