Prefix overview
Phone numbers in prefix 858-403
This page covers the 858-403 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
858-403
RATE CENTER
POWAY
CARRIER
NEW CINGULAR WIRELESS PCS, LLC
CA
Prefix range
The prefix 858-403 includes numbers from 8584030000 to 8584039999.
This range is associated with the POWAY rate center and was originally assigned to NEW CINGULAR WIRELESS PCS, LLC.
Numbers in this prefix
20 numbers