← Area code 320
320-803 phone numbers
Numbers 320-803-0000 to 320-803-9999 are assigned to Onvoy, LLC in Swanville, MN. 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 320-803-4xxx, 320-803-5xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.