← Area code 320
320-853 phone numbers
Numbers 320-853-0000 to 320-853-9999 are assigned to Mcc Telephony of Minnesota, LLC in Madison, MN. 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 320-853-4xxx, 320-853-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.