Prefix overview
Phone numbers in prefix 320-321
This page covers the 320-321 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
320-321
RATE CENTER
MONTEVIDEO
CARRIER
ONVOY, LLC - MN
MN
Prefix range
The prefix 320-321 includes numbers from 3203210000 to 3203219999.
This range is associated with the MONTEVIDEO rate center and was originally assigned to ONVOY, LLC - MN.
Numbers in this prefix
20 numbers