320-738 phone numbers

Numbers 320-738-0000 to 320-738-9999 are assigned to Onvoy, LLC in Onamia, MN. 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 320-738-4xxx, 320-738-7xxx, 320-738-9xxx — calls from these use spoofed caller IDs.

Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.

Reported numbers in 320-738