Prefix Information

The prefix 540 is part of area code 815 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (815-540-0000 through 815-540-9999).

Browse Numbers in This Prefix

815-540-0000-0999 815-540-1000-1999 815-540-2000-2999 815-540-3000-3999 815-540-4000-4999 815-540-5000-5999 815-540-6000-6999 815-540-7000-7999 815-540-8000-8999 815-540-9000-9999

Sample Numbers

(815) 540-0000 (815) 540-1234 (815) 540-2000 (815) 540-3333 (815) 540-4444 (815) 540-5555 (815) 540-6000 (815) 540-7777 (815) 540-8888 (815) 540-9999