601-666 phone numbers

Numbers 601-666-0000 to 601-666-9999 are assigned to Onvoy, LLC (rate centre NEWTONHKRY, MS, NANPA abbreviation). 5 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 601-666-5xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 601-666