Prefix 720-420

There are 4 phone numbers within prefix 720-420 that have resulted in reports by users.
 
The location of calls from 720-420 is Denver, Colorado, USA. Most numbers in this area code are in US Mountain time, where the time is currently 6:10:39 AM on June 14, 2026. The telco provider for 720-420 is Level 3 Communications, Llc - Co.
 
Choose a phone number from the list below to browse user reports for 720-420. You can also use the search box above to search for user reports about any phone number, or to file a report about any phone number.