Prefix overview
Phone numbers in prefix 858-390
This page covers the 858-390 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
858-390
RATE CENTER
LA JOLLA
CARRIER
TELEPORT COMMUNICATIONS AMERICA, LLC - CA
CA
Prefix range
The prefix 858-390 includes numbers from 8583900000 to 8583909999.
This range is associated with the LA JOLLA rate center and was originally assigned to TELEPORT COMMUNICATIONS AMERICA, LLC - CA.
Numbers in this prefix
20 numbers