| 840 Area Code Basic Information | |
|---|---|
| Area Code | 840 |
| Location | CA |
| Country | US |
| In Service Date | 2021-02-23 |
| Service Length | 5 years |
| Overlay Area Code? | Yes |
| Overlay Area Codes | 840 909 |
| Parent Area Code | 909 |
| Time Zone | P |
| Map | 529 |
| Area code in jeopardy? | No |
The following section explains how to dial outbound numbers from this area code.