| Area Code 240 Details | |
|---|---|
| Country | United States |
| State/Province | Maryland |
| Major City | Baltimore |
| Time Zone | Eastern |
| Prefix | County | Phone Type | Status |
|---|---|---|---|
| 240-715 | Montgomery | Landline | Active |
| 240-716 | Prince Georges | Cell Number | Active |
| 240-718 | Saint Marys | Landline | Active |
| 240-720 | Montgomery | Landline | Active |
| 240-722 | Montgomery | Landline | Active |
| 240-723 | Montgomery | Landline | Active |
| 240-724 | Prince Georges | Landline | Active |
| 240-725 | Saint Marys | Landline | Active |
| 240-727 | Allegany | Cell Number | Active |
| 240-731 | Montgomery | Cell Number | Active |
| 240-734 | Washington | Landline | Active |
| 240-737 | Prince Georges | Landline | Active |
| 240-743 | Prince Georges | Landline | Active |
| 240-744 | Prince Georges | Landline | Active |
| 240-745 | Montgomery | Landline | Active |
| 240-747 | Prince Georges | Landline | Active |
| 240-750 | Montgomery | Cell Number | Active |
| 240-751 | Montgomery | Landline | Active |
| 240-752 | Montgomery | Landline | Active |
| 240-753 | Montgomery | Landline | Active |