309-480 phone numbers

Numbers 309-480-0000 to 309-480-9999 are assigned to Onvoy, LLC (rate centre CASTLETON, IL, NANPA abbreviation). 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 309-480-0xxx, 309-480-2xxx, 309-480-3xxx, 309-480-5xxx, 309-480-6xxx, 309-480-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 309-480