Prefix Information

The prefix 583 is part of area code 779 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (779-583-0000 through 779-583-9999).

Browse Numbers in This Prefix

779-583-0000-0999 779-583-1000-1999 779-583-2000-2999 779-583-3000-3999 779-583-4000-4999 779-583-5000-5999 779-583-6000-6999 779-583-7000-7999 779-583-8000-8999 779-583-9000-9999

Sample Numbers

(779) 583-0000 (779) 583-1234 (779) 583-2000 (779) 583-3333 (779) 583-4444 (779) 583-5555 (779) 583-6000 (779) 583-7777 (779) 583-8888 (779) 583-9999