Prefix Information

The prefix 378 is part of area code 779 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (779-378-0000 through 779-378-9999).

Browse Numbers in This Prefix

779-378-0000-0999 779-378-1000-1999 779-378-2000-2999 779-378-3000-3999 779-378-4000-4999 779-378-5000-5999 779-378-6000-6999 779-378-7000-7999 779-378-8000-8999 779-378-9000-9999

Sample Numbers

(779) 378-0000 (779) 378-1234 (779) 378-2000 (779) 378-3333 (779) 378-4444 (779) 378-5555 (779) 378-6000 (779) 378-7777 (779) 378-8888 (779) 378-9999