Prefix Information

The prefix 343 is part of area code 720 serving Denver, Colorado.

This exchange contains 10,000 possible phone numbers (720-343-0000 through 720-343-9999).

Browse Numbers in This Prefix

720-343-0000-0999 720-343-1000-1999 720-343-2000-2999 720-343-3000-3999 720-343-4000-4999 720-343-5000-5999 720-343-6000-6999 720-343-7000-7999 720-343-8000-8999 720-343-9000-9999

Sample Numbers

(720) 343-0000 (720) 343-1234 (720) 343-2000 (720) 343-3333 (720) 343-4444 (720) 343-5555 (720) 343-6000 (720) 343-7777 (720) 343-8888 (720) 343-9999