Prefix Information

The prefix 556 is part of area code 815 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (815-556-0000 through 815-556-9999).

Browse Numbers in This Prefix

815-556-0000-0999 815-556-1000-1999 815-556-2000-2999 815-556-3000-3999 815-556-4000-4999 815-556-5000-5999 815-556-6000-6999 815-556-7000-7999 815-556-8000-8999 815-556-9000-9999

Sample Numbers

(815) 556-0000 (815) 556-1234 (815) 556-2000 (815) 556-3333 (815) 556-4444 (815) 556-5555 (815) 556-6000 (815) 556-7777 (815) 556-8888 (815) 556-9999