309-443 phone numbers

Numbers 309-443-0000 to 309-443-9999 are assigned to Frontier North, Inc. in Lowpoint, IL. 5 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 309-443-1xxx, 309-443-6xxx, 309-443-7xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 309-443