Prefix overview
Phone numbers in prefix 858-504
This page covers the 858-504 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
858-504
RATE CENTER
RNCHOSANFE
CARRIER
T-MOBILE USA, INC.
CA
Prefix range
The prefix 858-504 includes numbers from 8585040000 to 8585049999.
This range is associated with the RNCHOSANFE rate center and was originally assigned to T-MOBILE USA, INC..
Numbers in this prefix
20 numbers