Prefix overview
Phone numbers in prefix 320-388
This page covers the 320-388 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
320-388
RATE CENTER
RUSH CITY
CARRIER
ONVOY, LLC - MN
MN
Prefix range
The prefix 320-388 includes numbers from 3203880000 to 3203889999.
This range is associated with the RUSH CITY rate center and was originally assigned to ONVOY, LLC - MN.
Numbers in this prefix
20 numbers