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← Area code 401

401-337 phone numbers

Numbers 401-337-0000 to 401-337-9999 are assigned to Mcimetro Access Transmission Services LLC (rate centre WARREN, RI, NANPA abbreviation). 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 401-337-4xxx, 401-337-6xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 401-337