608-456 phone numbers

Numbers 608-456-0000 to 608-456-9999 are assigned to Onvoy, LLC (rate centre ORFORDVL, WI, NANPA abbreviation). 4 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 608-456-3xxx, 608-456-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 608-456