231-345 phone numbers

Numbers 231-345-0000 to 231-345-9999 are assigned to Bandwidth.com CLEC, LLC in Reed City, MI. 1 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 231-345-0xxx, 231-345-1xxx, 231-345-2xxx, 231-345-4xxx, 231-345-5xxx, 231-345-7xxx, 231-345-8xxx, 231-345-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 231-345