815-784 phone numbers

Numbers 815-784-0000 to 815-784-9999 are assigned to Frontier North, Inc. in Genoa, IL. 1 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 815-784-1xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 815-784