Prefix Information

The prefix 550 is part of area code 815 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (815-550-0000 through 815-550-9999).

Browse Numbers in This Prefix

815-550-0000-0999 815-550-1000-1999 815-550-2000-2999 815-550-3000-3999 815-550-4000-4999 815-550-5000-5999 815-550-6000-6999 815-550-7000-7999 815-550-8000-8999 815-550-9000-9999

Sample Numbers

(815) 550-0000 (815) 550-1234 (815) 550-2000 (815) 550-3333 (815) 550-4444 (815) 550-5555 (815) 550-6000 (815) 550-7777 (815) 550-8888 (815) 550-9999