← Area code 231
231-394 phone numbers
Numbers 231-394-0000 to 231-394-9999 are assigned to Verizon Wireless (rate centre MOORESTOWN, MI, NANPA abbreviation). 1 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 231-394-3xxx, 231-394-4xxx, 231-394-5xxx, 231-394-6xxx, 231-394-8xxx, 231-394-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.