Prefix Information

The prefix 856 is part of area code 720 serving Denver, Colorado.

This exchange contains 10,000 possible phone numbers (720-856-0000 through 720-856-9999).

Browse Numbers in This Prefix

720-856-0000-0999 720-856-1000-1999 720-856-2000-2999 720-856-3000-3999 720-856-4000-4999 720-856-5000-5999 720-856-6000-6999 720-856-7000-7999 720-856-8000-8999 720-856-9000-9999

Sample Numbers

(720) 856-0000 (720) 856-1234 (720) 856-2000 (720) 856-3333 (720) 856-4444 (720) 856-5555 (720) 856-6000 (720) 856-7777 (720) 856-8888 (720) 856-9999