Prefix Information

The prefix 123 is part of area code 720 serving Denver, Colorado.

This exchange contains 10,000 possible phone numbers (720-123-0000 through 720-123-9999).

Browse Numbers in This Prefix

720-123-0000-0999 720-123-1000-1999 720-123-2000-2999 720-123-3000-3999 720-123-4000-4999 720-123-5000-5999 720-123-6000-6999 720-123-7000-7999 720-123-8000-8999 720-123-9000-9999

Sample Numbers

(720) 123-0000 (720) 123-1234 (720) 123-2000 (720) 123-3333 (720) 123-4444 (720) 123-5555 (720) 123-6000 (720) 123-7777 (720) 123-8888 (720) 123-9999