Prefix Information

The prefix 577 is part of area code 779 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (779-577-0000 through 779-577-9999).

Browse Numbers in This Prefix

779-577-0000-0999 779-577-1000-1999 779-577-2000-2999 779-577-3000-3999 779-577-4000-4999 779-577-5000-5999 779-577-6000-6999 779-577-7000-7999 779-577-8000-8999 779-577-9000-9999

Sample Numbers

(779) 577-0000 (779) 577-1234 (779) 577-2000 (779) 577-3333 (779) 577-4444 (779) 577-5555 (779) 577-6000 (779) 577-7777 (779) 577-8888 (779) 577-9999