Prefix Information

The prefix 821 is part of area code 815 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (815-821-0000 through 815-821-9999).

Browse Numbers in This Prefix

815-821-0000-0999 815-821-1000-1999 815-821-2000-2999 815-821-3000-3999 815-821-4000-4999 815-821-5000-5999 815-821-6000-6999 815-821-7000-7999 815-821-8000-8999 815-821-9000-9999

Sample Numbers

(815) 821-0000 (815) 821-1234 (815) 821-2000 (815) 821-3333 (815) 821-4444 (815) 821-5555 (815) 821-6000 (815) 821-7777 (815) 821-8888 (815) 821-9999