603-488 phone numbers

Numbers 603-488-0000 to 603-488-9999 are assigned to Comcast Ip Phone, LLC (rate centre BEDFORD, NH, NANPA abbreviation). 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 603-488-3xxx, 603-488-4xxx, 603-488-8xxx, 603-488-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 603-488