Prefix overview
Phone numbers in prefix 657-238
This page covers the 657-238 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
657-238
RATE CENTER
CYPRESS
CARRIER
T-MOBILE USA, INC.
CA
Prefix range
The prefix 657-238 includes numbers from 6572380000 to 6572389999.
This range is associated with the CYPRESS rate center and was originally assigned to T-MOBILE USA, INC..
Numbers in this prefix
20 numbers