| 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 |
|---|---|---|---|
| 720-934 | Denver | Denver | Wireless |
| 720-903 | Denver | Denver | Landline |
| 720-404 | Denver | Denver | Wireless |
| 720-942 | Denver | Denver | Landline |
| 720-435 | Denver | Denver | Wireless |
| 720-561 | Denver | Denver | Landline |
| 720-907 | Denver | Denver | Landline |
| 720-273 | Denver | Denver | Wireless |
| 720-320 | Denver | Denver | Wireless |
| 720-263 | Brighton | Adams | Landline |
| 720-984 | Aurora | Arapahoe | Wireless |
| 720-291 | Denver | Denver | Wireless |
| 720-863 | Denver | Denver | Landline |
| 720-883 | Denver | Jefferson | Landline |
| 720-245 | Denver | Denver | Landline |
| 720-590 | Denver | Denver | Landline |
| 720-300 | Denver | Denver | Wireless |
| 720-599 | Denver | Denver | Landline |
| 720-785 | Denver | Denver | Landline |
| 720-451 | Denver | Denver | Wireless |