Prefix Information

The prefix 257 is part of area code 779 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (779-257-0000 through 779-257-9999).

Browse Numbers in This Prefix

779-257-0000-0999 779-257-1000-1999 779-257-2000-2999 779-257-3000-3999 779-257-4000-4999 779-257-5000-5999 779-257-6000-6999 779-257-7000-7999 779-257-8000-8999 779-257-9000-9999

Sample Numbers

(779) 257-0000 (779) 257-1234 (779) 257-2000 (779) 257-3333 (779) 257-4444 (779) 257-5555 (779) 257-6000 (779) 257-7777 (779) 257-8888 (779) 257-9999