| 640 Area Code Basic Information | |
|---|---|
| Area Code | 640 |
| Location | NJ |
| Country | US |
| In Service Date | 2018-09-17 |
| Service Length | 7 years |
| Overlay Area Code? | Yes |
| Overlay Area Codes | 609 640 |
| Parent Area Code | 609 |
| Time Zone | E |
| Map | 508 |
| Area code in jeopardy? | No |
The following section explains how to dial outbound numbers from this area code.