Prefix overview
Phone numbers in prefix 657-275
This page covers the 657-275 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
657-275
RATE CENTER
PLACENTIA
CARRIER
T-MOBILE USA, INC.
CA
Prefix range
The prefix 657-275 includes numbers from 6572750000 to 6572759999.
This range is associated with the PLACENTIA rate center and was originally assigned to T-MOBILE USA, INC..
Numbers in this prefix
20 numbers