Active Prefixes in Area Code 240
| Prefix | Primary City | Phone Type | Company |
|---|---|---|---|
| 240-361-#### | Gaithersburg | Landline Numbers | Cavalier Telephone M... |
| 240-362-#### | Cumberland | Landline Numbers | Verizon Maryland, In... |
| 240-363-#### | Kensington | Landline Numbers | Global Naps South, I... |
| 240-364-#### | Gaithersburg | Landline Numbers | Cavalier East Llc - ... |
| 240-365-#### | Damascus | Landline Numbers | Baltimore-washington... |
| 240-366-#### | Williamsport | Landline Numbers | At&t Local... |
| 240-367-#### | Frederick | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-368-#### | Waldorf | Landline Numbers | Global Naps South, I... |
| 240-369-#### | Mount Airy | Landline Numbers | Core Communications,... |
| 240-370-#### | Bethesda | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-371-#### | Washington Zone 12 | Landline Numbers | Global Naps South, I... |
| 240-372-#### | Gaithersburg | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-373-#### | Odenton | Landline Numbers | Verizon Maryland, In... |
| 240-374-#### | Landline Numbers | Global Crossing Loca... | |
| 240-375-#### | Silver Spring | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-376-#### | Hughesville | Landline Numbers | Global Naps South, I... |
| 240-377-#### | Indian Head | Landline Numbers | Global Crossing Loca... |
| 240-378-#### | Cumberland | Landline Numbers | Core Communications,... |
| 240-379-#### | Frederick | Landline Numbers | Verizon Maryland, In... |
| 240-380-#### | Cabin John | Wireless Numbers | Cellco Partnership D... |
| 240-381-#### | Silver Spring | Wireless Numbers | New Cingular Wireles... |
| 240-382-#### | Hagerstown | Landline Numbers | Teleport Communicati... |
| 240-383-#### | Chevy Chase | Wireless Numbers | New Cingular Wireles... |
| 240-384-#### | Reston | Landline Numbers | Global Naps South, I... |
| 240-385-#### | Myersville | Landline Numbers | Verizon Maryland, In... |
| 240-386-#### | Gaithersburg | Landline Numbers | Verizon Maryland, In... |
| 240-387-#### | Chevy Chase | Landline Numbers | Cavalier East Llc - ... |
| 240-388-#### | Gaithersburg | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-389-#### | Sandy Spring | Landline Numbers | Atx Telecommunicatio... |
| 240-390-#### | Sandy Spring | Landline Numbers | Cavalier Telephone M... |
Area Code 240 Introduction
| Area Code: | 240 |
| Country: | United States |
| State/Province: | Maryland - MD |
| Major City: | Gaithersburg |
| Time Zone: | Eastern |
| Average property | $1.87M |
| Average age | 62 y/o |
| Average assets | $229K |
| Population density | 12,407 sq mi (32,133 km2) |
| Population | 6,016,447 |
| latitude Longitude: | |
| 37° 53′ N to 39° 43′ N / 75° 03′ W to 79° 29′ W | |
| About 240 : | |
| The 240 Area Code (or Area Code 240) is located in the state of MD. Area Code 240 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 765 thousand unique phone numbers and 1.62 million individuals near the city of Bethesda Area code 240 was put into service. Area code 240 is an overlay of area code 301. |
|
| Major cities or places | |
| Bethesda, MD>Bowie, MD>Chillum, MD>Clinton, MD>College Park, MD>Cumberland, MD>Fairland, MD>Fort Washington, MD>Frederick, MD>Gaithersburg, MD>Germantown, MD>Greenbelt, MD>Hagerstown, MD>Landover, MD>Montgomery Village, MD>North Bethesda, MD>North Laurel, MD>North Potomac, MD>Olney, MD>Oxon Hill-glassmanor, MD>Potomac, MD>Rockville, MD>Silver Spring, MD>South Laurel, MD>St. Charles, MD>Suitland, MD>Waldorf, MD>Wheaton-glenmont, MD>White Oak, MD | |