Prefix Information

The prefix 556 is part of area code 720 serving Denver, Colorado.

This exchange contains 10,000 possible phone numbers (720-556-0000 through 720-556-9999).

Browse Numbers in This Prefix

720-556-0000-0999 720-556-1000-1999 720-556-2000-2999 720-556-3000-3999 720-556-4000-4999 720-556-5000-5999 720-556-6000-6999 720-556-7000-7999 720-556-8000-8999 720-556-9000-9999

Sample Numbers

(720) 556-0000 (720) 556-1234 (720) 556-2000 (720) 556-3333 (720) 556-4444 (720) 556-5555 (720) 556-6000 (720) 556-7777 (720) 556-8888 (720) 556-9999