812-321 phone numbers

Numbers 812-321-0000 to 812-321-9999 are assigned to Frontier North, Inc. in Wheatland, IN. 4 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 812-321-5xxx, 812-321-7xxx, 812-321-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 812-321