Prefix overview
Phone numbers in prefix 628-258
This page covers the 628-258 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
628-258
RATE CENTER
NICASIO
CARRIER
T-MOBILE USA, INC.
CA
Prefix range
The prefix 628-258 includes numbers from 6282580000 to 6282589999.
This range is associated with the NICASIO rate center and was originally assigned to T-MOBILE USA, INC..
Numbers in this prefix
20 numbers