618-643 phone numbers

Numbers 618-643-0000 to 618-643-9999 are assigned to Frontier North, Inc. (rate centre MCLEANSBO, IL, NANPA abbreviation). 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 618-643-1xxx, 618-643-6xxx, 618-643-7xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 618-643