Prefix overview
Phone numbers in prefix 408-320
This page covers the 408-320 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
408-320
RATE CENTER
SNJS WEST
CARRIER
AT&T ENTERPRISES, LLC
CA
Prefix range
The prefix 408-320 includes numbers from 4083200000 to 4083209999.
This range is associated with the SNJS WEST rate center and was originally assigned to AT&T ENTERPRISES, LLC.
Numbers in this prefix
20 numbers