Prefix overview
Phone numbers in prefix 320-464
This page covers the 320-464 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
320-464
RATE CENTER
COSMOS
CARRIER
ONVOY, LLC - MN
MN
Prefix range
The prefix 320-464 includes numbers from 3204640000 to 3204649999.
This range is associated with the COSMOS rate center and was originally assigned to ONVOY, LLC - MN.
Numbers in this prefix
20 numbers