Prefix Information

The prefix 643 is part of area code 720 serving Denver, Colorado.

This exchange contains 10,000 possible phone numbers (720-643-0000 through 720-643-9999).

Browse Numbers in This Prefix

720-643-0000-0999 720-643-1000-1999 720-643-2000-2999 720-643-3000-3999 720-643-4000-4999 720-643-5000-5999 720-643-6000-6999 720-643-7000-7999 720-643-8000-8999 720-643-9000-9999

Sample Numbers

(720) 643-0000 (720) 643-1234 (720) 643-2000 (720) 643-3333 (720) 643-4444 (720) 643-5555 (720) 643-6000 (720) 643-7777 (720) 643-8888 (720) 643-9999