Prefix 720-399

There are 70 phone numbers within prefix 720-399 that have resulted in reports by users.
 
The location of calls from 720-399 is Denver, Colorado, USA. Most numbers in this area code are in US Mountain time, where the time is currently 10:14:09 AM on March 11, 2025. The telco provider for 720-399 is Level 3 Communications, Llc - Co.
 
Choose a phone number from the list below to browse user reports for 720-399. 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.