Prefix overview
Phone numbers in prefix 858-436
This page covers the 858-436 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
858-436
RATE CENTER
DEL MAR
CARRIER
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS
CA
Prefix range
The prefix 858-436 includes numbers from 8584360000 to 8584369999.
This range is associated with the DEL MAR rate center and was originally assigned to U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS.
Numbers in this prefix
20 numbers