Prefix Information

The prefix 623 is part of area code 720 serving Denver, Colorado.

This exchange contains 10,000 possible phone numbers (720-623-0000 through 720-623-9999).

Browse Numbers in This Prefix

720-623-0000-0999 720-623-1000-1999 720-623-2000-2999 720-623-3000-3999 720-623-4000-4999 720-623-5000-5999 720-623-6000-6999 720-623-7000-7999 720-623-8000-8999 720-623-9000-9999

Sample Numbers

(720) 623-0000 (720) 623-1234 (720) 623-2000 (720) 623-3333 (720) 623-4444 (720) 623-5555 (720) 623-6000 (720) 623-7777 (720) 623-8888 (720) 623-9999