← Area code 401
401-597 phone numbers
Numbers 401-597-0000 to 401-597-9999 are assigned to Comcast Ip Phone, LLC in Woonsocket, RI. 1 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 401-597-1xxx, 401-597-3xxx, 401-597-4xxx, 401-597-7xxx, 401-597-8xxx, 401-597-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.