Prefix overview
Phone numbers in prefix 858-445
This page covers the 858-445 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
858-445
RATE CENTER
SNDG MRMS
CARRIER
T-MOBILE USA, INC.
CA
Prefix range
The prefix 858-445 includes numbers from 8584450000 to 8584459999.
This range is associated with the SNDG MRMS rate center and was originally assigned to T-MOBILE USA, INC..
Numbers in this prefix
20 numbers