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← Area code 331

331-704 phone numbers

Numbers 331-704-0000 to 331-704-9999 are assigned to Bandwidth.com CLEC, LLC in Kaneville, IL. 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 331-704-5xxx, 331-704-6xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 331-704