Prefix Information

The prefix 840 is part of area code 779 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (779-840-0000 through 779-840-9999).

Browse Numbers in This Prefix

779-840-0000-0999 779-840-1000-1999 779-840-2000-2999 779-840-3000-3999 779-840-4000-4999 779-840-5000-5999 779-840-6000-6999 779-840-7000-7999 779-840-8000-8999 779-840-9000-9999

Sample Numbers

(779) 840-0000 (779) 840-1234 (779) 840-2000 (779) 840-3333 (779) 840-4444 (779) 840-5555 (779) 840-6000 (779) 840-7777 (779) 840-8888 (779) 840-9999