Prefix Information

The prefix 643 is part of area code 773 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (773-643-0000 through 773-643-9999).

Browse Numbers in This Prefix

773-643-0000-0999 773-643-1000-1999 773-643-2000-2999 773-643-3000-3999 773-643-4000-4999 773-643-5000-5999 773-643-6000-6999 773-643-7000-7999 773-643-8000-8999 773-643-9000-9999

Sample Numbers

(773) 643-0000 (773) 643-1234 (773) 643-2000 (773) 643-3333 (773) 643-4444 (773) 643-5555 (773) 643-6000 (773) 643-7777 (773) 643-8888 (773) 643-9999