618-575 phone numbers

Numbers 618-575-0000 to 618-575-9999 are assigned to Bandwidth.com CLEC, LLC (rate centre SEFTON, IL, NANPA abbreviation). 5 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 618-575-2xxx, 618-575-3xxx, 618-575-4xxx, 618-575-6xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 618-575