304-557 phone numbers

Numbers 304-557-0000 to 304-557-9999 are assigned to Nuso, LLC in Princeton, WV. 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 304-557-6xxx, 304-557-7xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 304-557