Prefix overview
Phone numbers in prefix 858-358
This page covers the 858-358 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
858-358
RATE CENTER
EL CAJON
CARRIER
ONVOY, LLC - CA
CA
Prefix range
The prefix 858-358 includes numbers from 8583580000 to 8583589999.
This range is associated with the EL CAJON rate center and was originally assigned to ONVOY, LLC - CA.
Numbers in this prefix
20 numbers