Prefix Information

The prefix 645 is part of area code 773 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (773-645-0000 through 773-645-9999).

Browse Numbers in This Prefix

773-645-0000-0999 773-645-1000-1999 773-645-2000-2999 773-645-3000-3999 773-645-4000-4999 773-645-5000-5999 773-645-6000-6999 773-645-7000-7999 773-645-8000-8999 773-645-9000-9999

Sample Numbers

(773) 645-0000 (773) 645-1234 (773) 645-2000 (773) 645-3333 (773) 645-4444 (773) 645-5555 (773) 645-6000 (773) 645-7777 (773) 645-8888 (773) 645-9999