Active Prefixes in Area Code 240
| Prefix | Primary City | Phone Type | Company |
|---|---|---|---|
| 240-455-#### | Sterling | Landline Numbers | Paetec Communication... |
| 240-456-#### | Laurel | Landline Numbers | Verizon Maryland, In... |
| 240-457-#### | Frederick | Wireless Numbers | Cellco Partnership D... |
| 240-458-#### | Waldorf | Wireless Numbers | Cellco Partnership D... |
| 240-459-#### | Annapolis Junction | Wireless Numbers | Cellco Partnership D... |
| 240-460-#### | Silver Spring | Wireless Numbers | New Cingular Wireles... |
| 240-461-#### | Silver Spring | Wireless Numbers | New Cingular Wireles... |
| 240-462-#### | Washington Zone 3 | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-463-#### | Silver Spring | Wireless Numbers | New Cingular Wireles... |
| 240-464-#### | Chevy Chase | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-465-#### | Washington Zone 2 | Landline Numbers | Global Naps South, I... |
| 240-466-#### | Washington | Landline Numbers | Global Naps South, I... |
| 240-467-#### | Battery Park | Landline Numbers | Comcast Phone Of Nor... |
| 240-468-#### | Washington Zone 3 | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-469-#### | Hagerstown | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-470-#### | Beltsville | Wireless Numbers | Cellco Partnership D... |
| 240-471-#### | Washington Zone 12 | Landline Numbers | Global Crossing Loca... |
| 240-472-#### | Silver Spring | Wireless Numbers | New Cingular Wireles... |
| 240-473-#### | Herndon | Landline Numbers | Cavalier Telephone M... |
| 240-475-#### | Silver Spring | Wireless Numbers | New Cingular Wireles... |
| 240-476-#### | Silver Spring | Wireless Numbers | Omnipoint Communicat... |
| 240-477-#### | Gaithersburg | Landline Numbers | Lightwave Communicat... |
| 240-478-#### | Cabin John | Wireless Numbers | New Cingular Wireles... |
| 240-479-#### | Washington Zone 2 | Wireless Numbers | Cellco Partnership D... |
| 240-480-#### | Bethesda | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-481-#### | Silver Spring | Wireless Numbers | Omnipoint Communicat... |
| 240-482-#### | Cabin John | Landline Numbers | Us Lec Of Maryland, ... |
| 240-483-#### | Washington Zone 2 | Landline Numbers | Comcast Phone Of Nor... |
| 240-485-#### | Cabin John | Landline Numbers | Us Lec Of Maryland, ... |
| 240-486-#### | Beltsville | Wireless Numbers | Omnipoint Communicat... |
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 | |