320-343 phone numbers

Numbers 320-343-0000 to 320-343-9999 are assigned to Mcc Telephony of Minnesota, LLC in Clinton, MN. 6 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 320-343-0xxx, 320-343-6xxx, 320-343-8xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 320-343