← Area code 606
606-659 phone numbers
Numbers 606-659-0000 to 606-659-9999 are assigned to Onvoy, LLC (rate centre OWINGSVL, KY, NANPA abbreviation). 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 606-659-1xxx, 606-659-2xxx, 606-659-3xxx, 606-659-4xxx, 606-659-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.