Prefix Information

The prefix 666 is part of area code 779 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (779-666-0000 through 779-666-9999).

Browse Numbers in This Prefix

779-666-0000-0999 779-666-1000-1999 779-666-2000-2999 779-666-3000-3999 779-666-4000-4999 779-666-5000-5999 779-666-6000-6999 779-666-7000-7999 779-666-8000-8999 779-666-9000-9999

Sample Numbers

(779) 666-0000 (779) 666-1234 (779) 666-2000 (779) 666-3333 (779) 666-4444 (779) 666-5555 (779) 666-6000 (779) 666-7777 (779) 666-8888 (779) 666-9999