606-685 phone numbers

Numbers 606-685-0000 to 606-685-9999 are assigned to Level 3 Communications, LLC (rate centre SCIENCE HL, KY, NANPA abbreviation). 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 606-685-0xxx, 606-685-2xxx, 606-685-3xxx, 606-685-4xxx, 606-685-5xxx, 606-685-7xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 606-685