General Information about Area Code 240 | |
---|---|
Country | United States |
State / Province / Territory | Maryland |
Major City | Gaithersburg |
Time Zone | Eastern (UTC-05:00) |
Prefix | Primary City | County | Phone Type |
---|---|---|---|
240-964 | Cumberland | Allegany | Landline |
240-737 | Brentwood | Prince Georges | Landline |
240-281 | Chevy Chase | Montgomery | Wireless |
240-802 | Brentwood | Prince Georges | Wireless |
240-503 | Issue | Charles | Landline |
240-813 | Gaithersburg | Montgomery | Landline |
240-551 | Rockville | Montgomery | Wireless |
240-394 | Mount Airy | Frederick | Wireless |
240-593 | Laurel | Howard | Wireless |
240-456 | Laurel | Anne Arundel | Landline |
240-309 | Silver Spring | Montgomery | Wireless |
240-474 | Gaithersburg | Montgomery | Landline |
240-855 | Glen Echo | Montgomery | Wireless |
240-520 | Hagerstown | Washington | Wireless |
240-641 | Silver Spring | Montgomery | Wireless |
240-529 | Frederick | Frederick | Landline |
240-278 | Laurel | Howard | Wireless |
240-316 | Bethesda | Montgomery | Wireless |
240-246 | Gaithersburg | Montgomery | Landline |
240-392 | Brentwood | Prince Georges | Landline |