Prefix Information

The prefix 578 is part of area code 779 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (779-578-0000 through 779-578-9999).

Browse Numbers in This Prefix

779-578-0000-0999 779-578-1000-1999 779-578-2000-2999 779-578-3000-3999 779-578-4000-4999 779-578-5000-5999 779-578-6000-6999 779-578-7000-7999 779-578-8000-8999 779-578-9000-9999

Sample Numbers

(779) 578-0000 (779) 578-1234 (779) 578-2000 (779) 578-3333 (779) 578-4444 (779) 578-5555 (779) 578-6000 (779) 578-7777 (779) 578-8888 (779) 578-9999