Prefix Information

The prefix 857 is part of area code 779 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (779-857-0000 through 779-857-9999).

Browse Numbers in This Prefix

779-857-0000-0999 779-857-1000-1999 779-857-2000-2999 779-857-3000-3999 779-857-4000-4999 779-857-5000-5999 779-857-6000-6999 779-857-7000-7999 779-857-8000-8999 779-857-9000-9999

Sample Numbers

(779) 857-0000 (779) 857-1234 (779) 857-2000 (779) 857-3333 (779) 857-4444 (779) 857-5555 (779) 857-6000 (779) 857-7777 (779) 857-8888 (779) 857-9999