Prefix Information

The prefix 311 is part of area code 815 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (815-311-0000 through 815-311-9999).

Browse Numbers in This Prefix

815-311-0000-0999 815-311-1000-1999 815-311-2000-2999 815-311-3000-3999 815-311-4000-4999 815-311-5000-5999 815-311-6000-6999 815-311-7000-7999 815-311-8000-8999 815-311-9000-9999

Sample Numbers

(815) 311-0000 (815) 311-1234 (815) 311-2000 (815) 311-3333 (815) 311-4444 (815) 311-5555 (815) 311-6000 (815) 311-7777 (815) 311-8888 (815) 311-9999