Prefix Information

The prefix 770 is part of area code 815 serving Rockford, Illinois.

This exchange contains 10,000 possible phone numbers (815-770-0000 through 815-770-9999).

Browse Numbers in This Prefix

815-770-0000-0999 815-770-1000-1999 815-770-2000-2999 815-770-3000-3999 815-770-4000-4999 815-770-5000-5999 815-770-6000-6999 815-770-7000-7999 815-770-8000-8999 815-770-9000-9999

Sample Numbers

(815) 770-0000 (815) 770-1234 (815) 770-2000 (815) 770-3333 (815) 770-4444 (815) 770-5555 (815) 770-6000 (815) 770-7777 (815) 770-8888 (815) 770-9999