Canadial Know Who Called
← Area code 304

304-300 phone numbers

Numbers 304-300-0000 to 304-300-9999 are assigned to Ymax Communications Corp. in Clarksburg, WV. 1 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 304-300