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← Area code 231

231-430 phone numbers

Numbers 231-430-0000 to 231-430-9999 are assigned to Onvoy, Llcv in Boyne City, MI. 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 231-430-3xxx, 231-430-4xxx, 231-430-5xxx, 231-430-6xxx, 231-430-7xxx, 231-430-8xxx, 231-430-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 231-430