Prefix overview
Phone numbers in prefix 858-421
This page covers the 858-421 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
858-421
RATE CENTER
RNCHOBRNDO
CARRIER
NEW CINGULAR WIRELESS PCS, LLC
CA
Prefix range
The prefix 858-421 includes numbers from 8584210000 to 8584219999.
This range is associated with the RNCHOBRNDO rate center and was originally assigned to NEW CINGULAR WIRELESS PCS, LLC.
Numbers in this prefix
20 numbers