Canadial Know Who Called
← Area code 304

304-440 phone numbers

Numbers 304-440-0000 to 304-440-9999 are assigned to T-Mobile USA, Inc. in Ravenswood, WV. 9 of its ten thousand-number blocks are assigned to other carriers (number pooling).

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

Reported numbers in 304-440