Active Prefixes in Area Code 240
| Prefix | Primary City | Phone Type | Company |
|---|---|---|---|
| 240-720-#### | Gaithersburg | Landline Numbers | Global Crossing Loca... |
| 240-722-#### | Ashton 236 | Landline Numbers | Global Crossing Loca... |
| 240-723-#### | Silver Spring | Wireless Numbers | Cellco Partnership D... |
| 240-724-#### | Washington | Landline Numbers | Cavalier East Llc - ... |
| 240-725-#### | Lexington Park | Landline Numbers | Verizon Maryland, In... |
| 240-727-#### | Cumberland | Wireless Numbers | New Cingular Wireles... |
| 240-731-#### | Rockville | Wireless Numbers | New Cingular Wireles... |
| 240-734-#### | Hagerstown | Landline Numbers | Bandwidth.com Clec, ... |
| 240-737-#### | Washington | Landline Numbers | Cavalier East Llc - ... |
| 240-740-#### | Washington Zone 10 | Wireless Numbers | Cellco Partnership D... |
| 240-743-#### | Washington Zone 2 | Wireless Numbers | New Cingular Wireles... |
| 240-744-#### | Washington Zone 2 | Landline Numbers | Broadwing Communicat... |
| 240-745-#### | Damascus | Landline Numbers | Xo Maryland, Llc... |
| 240-747-#### | Washington Zone 11 | Landline Numbers | Cavalier East Llc - ... |
| 240-750-#### | Gaithersburg | Wireless Numbers | New Cingular Wireles... |
| 240-751-#### | Gaithersburg | Landline Numbers | Telcove Operations, ... |
| 240-752-#### | Bethesda | Landline Numbers | Telcove Operations, ... |
| 240-753-#### | Rockville | Landline Numbers | Telcove Operations, ... |
| 240-754-#### | Waldorf | Landline Numbers | Level 3 Communicatio... |
| 240-755-#### | Laurel 238 | Landline Numbers | Comcast Phone Of Nor... |
| 240-757-#### | Reston | Landline Numbers | Global Naps South, I... |
| 240-762-#### | Washington Zone 2 | Wireless Numbers | Cellco Partnership D... |
| 240-764-#### | Chevy Chase | Landline Numbers | Xo Maryland, Llc... |
| 240-765-#### | Chevy Chase | Landline Numbers | Xo Maryland, Llc... |
| 240-766-#### | Chevy Chase | Landline Numbers | Xo Maryland, Llc... |
| 240-767-#### | Washington | Landline Numbers | Cavalier East Llc - ... |
| 240-770-#### | Battery Park | Landline Numbers | Comcast Phone Of Nor... |
| 240-772-#### | Frederick | Wireless Numbers | Cellco Partnership D... |
| 240-773-#### | Rockville | Landline Numbers | Verizon Maryland, In... |
| 240-776-#### | La Plata | Landline Numbers | Broadwing 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 | |