Prefix Information

The prefix 523 is part of area code 815 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (815-523-0000 through 815-523-9999).

Browse Numbers in This Prefix

815-523-0000-0999 815-523-1000-1999 815-523-2000-2999 815-523-3000-3999 815-523-4000-4999 815-523-5000-5999 815-523-6000-6999 815-523-7000-7999 815-523-8000-8999 815-523-9000-9999

Sample Numbers

(815) 523-0000 (815) 523-1234 (815) 523-2000 (815) 523-3333 (815) 523-4444 (815) 523-5555 (815) 523-6000 (815) 523-7777 (815) 523-8888 (815) 523-9999