603-481 phone numbers

Numbers 603-481-0000 to 603-481-9999 are assigned to Bell Atlantic Mobile, Inc in Plymouth, NH. 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 603-481-4xxx, 603-481-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 603-481