| Area Code 240 Details | |
|---|---|
| Country | United States |
| State/Province | Maryland |
| Major City | Baltimore |
| Time Zone | Eastern |
| Prefix | County | Phone Type | Status |
|---|---|---|---|
| 240-682 | Charles | Landline | Active |
| 240-683 | Montgomery | Landline | Active |
| 240-684 | Prince Georges | Landline | Active |
| 240-685 | Prince Georges | Landline | Active |
| 240-686 | Montgomery | Landline | Active |
| 240-687 | Montgomery | Cell Number | Active |
| 240-688 | Montgomery | Cell Number | Active |
| 240-691 | Prince Georges | Landline | Active |
| 240-694 | Montgomery | Landline | Active |
| 240-695 | Prince Georges | Landline | Active |
| 240-696 | Prince Georges | Landline | Active |
| 240-699 | Frederick | Landline | Active |
| 240-701 | Montgomery | Cell Number | Active |
| 240-704 | Prince Georges | Cell Number | Active |
| 240-705 | Montgomery | Cell Number | Active |
| 240-706 | Montgomery | Cell Number | Active |
| 240-707 | Washington | Cell Number | Active |
| 240-708 | Howard | Cell Number | Active |
| 240-712 | Howard | Cell Number | Active |
| 240-713 | Prince Georges | Landline | Active |