Prefix Information

The prefix 811 is part of area code 815 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (815-811-0000 through 815-811-9999).

Browse Numbers in This Prefix

815-811-0000-0999 815-811-1000-1999 815-811-2000-2999 815-811-3000-3999 815-811-4000-4999 815-811-5000-5999 815-811-6000-6999 815-811-7000-7999 815-811-8000-8999 815-811-9000-9999

Sample Numbers

(815) 811-0000 (815) 811-1234 (815) 811-2000 (815) 811-3333 (815) 811-4444 (815) 811-5555 (815) 811-6000 (815) 811-7777 (815) 811-8888 (815) 811-9999