| Area Code | 640 |
| State | New Jersey |
| Current Time in Area Code 640 | 640> EDT |
| Timezone | Eastern Daylight Time |
| Metro Area(s) | Atlantic City-Hammonton, NJ Ocean City, NJ Trenton-Princeton, NJ |
| Population (2020) | 1856226 |
| Adjacent Area Codes | 215,267,445,609,732,848,856,908 |
| Overlay Area Codes | 609 |
| Atlantic County |
| Burlington County |
| Cape May County |
| Mercer County |
| Ocean County |
| Atlantic City |
| Princeton |
| Trenton |