434-428 phone numbers

Numbers 434-428-0000 to 434-428-9999 are assigned to Onvoy Spectrum, LLC (rate centre CLARKSVL, VA, NANPA abbreviation). 5 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 434-428-2xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 434-428