Prefix Information

The prefix 660 is part of area code 815 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (815-660-0000 through 815-660-9999).

Browse Numbers in This Prefix

815-660-0000-0999 815-660-1000-1999 815-660-2000-2999 815-660-3000-3999 815-660-4000-4999 815-660-5000-5999 815-660-6000-6999 815-660-7000-7999 815-660-8000-8999 815-660-9000-9999

Sample Numbers

(815) 660-0000 (815) 660-1234 (815) 660-2000 (815) 660-3333 (815) 660-4444 (815) 660-5555 (815) 660-6000 (815) 660-7777 (815) 660-8888 (815) 660-9999