Prefix Information

The prefix 166 is part of area code 815 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (815-166-0000 through 815-166-9999).

Browse Numbers in This Prefix

815-166-0000-0999 815-166-1000-1999 815-166-2000-2999 815-166-3000-3999 815-166-4000-4999 815-166-5000-5999 815-166-6000-6999 815-166-7000-7999 815-166-8000-8999 815-166-9000-9999

Sample Numbers

(815) 166-0000 (815) 166-1234 (815) 166-2000 (815) 166-3333 (815) 166-4444 (815) 166-5555 (815) 166-6000 (815) 166-7777 (815) 166-8888 (815) 166-9999