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← Area code 309

309-259 phone numbers

Numbers 309-259-0000 to 309-259-9999 are assigned to Onvoy Spectrum, LLC in Macomb, IL. 5 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 309-259-4xxx, 309-259-7xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 309-259