Prefix overview
Phone numbers in prefix 858-400
This page covers the 858-400 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
858-400
RATE CENTER
RNCHOSANFE
CARRIER
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS
CA
Prefix range
The prefix 858-400 includes numbers from 8584000000 to 8584009999.
This range is associated with the RNCHOSANFE rate center and was originally assigned to U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS.
Numbers in this prefix
20 numbers