Prefix Information

The prefix 403 is part of area code 815 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (815-403-0000 through 815-403-9999).

Browse Numbers in This Prefix

815-403-0000-0999 815-403-1000-1999 815-403-2000-2999 815-403-3000-3999 815-403-4000-4999 815-403-5000-5999 815-403-6000-6999 815-403-7000-7999 815-403-8000-8999 815-403-9000-9999

Sample Numbers

(815) 403-0000 (815) 403-1234 (815) 403-2000 (815) 403-3333 (815) 403-4444 (815) 403-5555 (815) 403-6000 (815) 403-7777 (815) 403-8888 (815) 403-9999