| General Information about Area Code 720 | |
|---|---|
| Country | United States |
| State / Province / Territory | Colorado |
| Major City | Denver |
| Time Zone | Mountain (UTC-07:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 720-699 | Denver | Denver | Landline |
| 720-319 | Denver | Denver | Wireless |
| 720-763 | Denver | Denver | Wireless |
| 720-456 | Denver | Denver | Landline |
| 720-457 | Denver | Denver | Landline |
| 720-476 | Denver | Denver | Wireless |
| 720-290 | Denver | Denver | Wireless |
| 720-840 | Aurora | Arapahoe | Wireless |
| 720-294 | Denver | Denver | Landline |
| 720-931 | Denver | Denver | Landline |
| 720-395 | Denver | Denver | Landline |
| 720-837 | Aurora | Arapahoe | Wireless |
| 720-724 | Denver | Denver | Landline |
| 720-669 | Hudson | Weld | Landline |
| 720-314 | Denver | Denver | Wireless |
| 720-933 | Denver | Denver | Wireless |
| 720-357 | Denver | Denver | Wireless |
| 720-299 | Denver | Denver | Wireless |
| 720-398 | Denver | Denver | Wireless |
| 720-977 | Denver | Adams | Landline |