Active Prefixes in Area Code 240
| Prefix | Primary City | Phone Type | Company |
|---|---|---|---|
| 240-487-#### | McLean | Landline Numbers | Us Lec Of Maryland, ... |
| 240-488-#### | Oakland | Landline Numbers | Shentel Communicatio... |
| 240-489-#### | Poolesville | Landline Numbers | Xo Maryland, Llc... |
| 240-490-#### | Middletown | Wireless Numbers | Omnipoint Communicat... |
| 240-491-#### | Washington Zone 3 | Landline Numbers | Global Crossing Loca... |
| 240-492-#### | McLean | Landline Numbers | Us Lec Of Maryland, ... |
| 240-493-#### | McLean | Landline Numbers | Us Lec Of Maryland, ... |
| 240-494-#### | Washington Zone 3 | Landline Numbers | Cavalier East Llc - ... |
| 240-497-#### | Chevy Chase | Landline Numbers | Verizon Maryland, In... |
| 240-498-#### | Washington Zone 2 | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-499-#### | Cabin John | Landline Numbers | Us Lec Of Maryland, ... |
| 240-500-#### | Hagerstown | Landline Numbers | Us Lec Of Maryland, ... |
| 240-501-#### | Silver Spring | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-502-#### | Silver Spring | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-503-#### | Newburg | Landline Numbers | Peerless Network Of ... |
| 240-504-#### | Silver Spring | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-505-#### | Silver Spring | Wireless Numbers | Omnipoint Communicat... |
| 240-506-#### | Rockville | Wireless Numbers | New Cingular Wireles... |
| 240-507-#### | Cabin John | Wireless Numbers | Cellco Partnership D... |
| 240-508-#### | Silver Spring | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-509-#### | Crofton | Landline Numbers | Bandwidth.com Clec, ... |
| 240-510-#### | Washington | Landline Numbers | Xo Maryland, Llc... |
| 240-512-#### | Washington 238 Zone 13 | Landline Numbers | Core Communications,... |
| 240-513-#### | Hagerstown | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-514-#### | Cabin John | Landline Numbers | Us Lec Of Maryland, ... |
| 240-515-#### | Bethesda | Wireless Numbers | New Cingular Wireles... |
| 240-516-#### | Silver Spring | Landline Numbers | Us Lec Of Maryland, ... |
| 240-518-#### | Waldorf | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-519-#### | Bethesda | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-520-#### | Hagerstown | Wireless Numbers | Sprint Spectrum L.p.... |
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 | |