Prefix Information

The prefix 644 is part of area code 779 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (779-644-0000 through 779-644-9999).

Browse Numbers in This Prefix

779-644-0000-0999 779-644-1000-1999 779-644-2000-2999 779-644-3000-3999 779-644-4000-4999 779-644-5000-5999 779-644-6000-6999 779-644-7000-7999 779-644-8000-8999 779-644-9000-9999

Sample Numbers

(779) 644-0000 (779) 644-1234 (779) 644-2000 (779) 644-3333 (779) 644-4444 (779) 644-5555 (779) 644-6000 (779) 644-7777 (779) 644-8888 (779) 644-9999