Canadial Know Who Called
← Area code 231

231-210 phone numbers

Numbers 231-210-0000 to 231-210-9999 are assigned to Onvoy, Llcv in St. James, MI. 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 231-210-1xxx, 231-210-3xxx, 231-210-4xxx, 231-210-5xxx, 231-210-7xxx, 231-210-8xxx, 231-210-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 231-210