Prefix Information

The prefix 831 is part of area code 779 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (779-831-0000 through 779-831-9999).

Browse Numbers in This Prefix

779-831-0000-0999 779-831-1000-1999 779-831-2000-2999 779-831-3000-3999 779-831-4000-4999 779-831-5000-5999 779-831-6000-6999 779-831-7000-7999 779-831-8000-8999 779-831-9000-9999

Sample Numbers

(779) 831-0000 (779) 831-1234 (779) 831-2000 (779) 831-3333 (779) 831-4444 (779) 831-5555 (779) 831-6000 (779) 831-7777 (779) 831-8888 (779) 831-9999