Canadial Know Who Called
← Area code 401

401-310 phone numbers

Numbers 401-310-0000 to 401-310-9999 are assigned to Bandwidth.com CLEC, LLC (rate centre WARREN, RI, NANPA abbreviation). 5 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 401-310-4xxx, 401-310-5xxx, 401-310-6xxx, 401-310-7xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 401-310