Prefix Information

The prefix 340 is part of area code 779 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (779-340-0000 through 779-340-9999).

Browse Numbers in This Prefix

779-340-0000-0999 779-340-1000-1999 779-340-2000-2999 779-340-3000-3999 779-340-4000-4999 779-340-5000-5999 779-340-6000-6999 779-340-7000-7999 779-340-8000-8999 779-340-9000-9999

Sample Numbers

(779) 340-0000 (779) 340-1234 (779) 340-2000 (779) 340-3333 (779) 340-4444 (779) 340-5555 (779) 340-6000 (779) 340-7777 (779) 340-8888 (779) 340-9999