Prefix overview
Phone numbers in prefix 657-477
This page covers the 657-477 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
657-477
RATE CENTER
SILVERADO
CARRIER
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
CA
Prefix range
The prefix 657-477 includes numbers from 6574770000 to 6574779999.
This range is associated with the SILVERADO rate center and was originally assigned to CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA.
Numbers in this prefix
20 numbers