Prefix Information

The prefix 310 is part of area code 815 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (815-310-0000 through 815-310-9999).

Browse Numbers in This Prefix

815-310-0000-0999 815-310-1000-1999 815-310-2000-2999 815-310-3000-3999 815-310-4000-4999 815-310-5000-5999 815-310-6000-6999 815-310-7000-7999 815-310-8000-8999 815-310-9000-9999

Sample Numbers

(815) 310-0000 (815) 310-1234 (815) 310-2000 (815) 310-3333 (815) 310-4444 (815) 310-5555 (815) 310-6000 (815) 310-7777 (815) 310-8888 (815) 310-9999