Active Prefixes in Area Code 240
| Prefix | Primary City | Phone Type | Company |
|---|---|---|---|
| 240-843-#### | Not available. | Landline Numbers | Allegiance Telecom, ... |
| 240-844-#### | Washington | Landline Numbers | Xo Maryland, Llc... |
| 240-845-#### | Chevy Chase | Landline Numbers | Xo Maryland, Llc... |
| 240-846-#### | Washington | Landline Numbers | Xo Maryland, Llc... |
| 240-848-#### | Gaithersburg | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-855-#### | Cabin John | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-857-#### | Laurel | Landline Numbers | Tw Telecom Of Maryla... |
| 240-863-#### | Washington Zone 3 | Landline Numbers | Tw Telecom Of Maryla... |
| 240-864-#### | Rockville | Landline Numbers | Cavalier East Llc - ... |
| 240-865-#### | Baltimore | Landline Numbers | Level 3 Communicatio... |
| 240-868-#### | Washington Zone 12 | Landline Numbers | Cavalier East Llc - ... |
| 240-876-#### | Bethesda | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-880-#### | Chevy Chase | Landline Numbers | Broadwing Communicat... |
| 240-882-#### | Silver Spring | Wireless Numbers | Sprint Spectrum L.p.... |
| 240-883-#### | Sandy Spring | Landline Numbers | Broadwing Communicat... |
| 240-888-#### | Rockville | Wireless Numbers | New Cingular Wireles... |
| 240-892-#### | Washington | Landline Numbers | Broadwing Communicat... |
| 240-893-#### | Silver Spring | Wireless Numbers | New Cingular Wireles... |
| 240-895-#### | Lexington Park | Landline Numbers | Verizon Maryland, In... |
| 240-897-#### | Washington | Landline Numbers | Broadwing Communicat... |
| 240-898-#### | Washington | Landline Numbers | Broadwing Communicat... |
| 240-899-#### | Bethesda | Wireless Numbers | Omnipoint Communicat... |
| 240-912-#### | Gaithersburg | Landline Numbers | Us Lec Of Maryland, ... |
| 240-920-#### | Cumberland | Landline Numbers | Level 3 Communicatio... |
| 240-925-#### | Washington | Wireless Numbers | Cellco Partnership D... |
| 240-929-#### | Washington | Landline Numbers | Cavalier East Llc - ... |
| 240-938-#### | Ashton | Wireless Numbers | Omnipoint Communicat... |
| 240-949-#### | Washington | Landline Numbers | Cavalier East Llc - ... |
| 240-964-#### | Cumberland | Landline Numbers | Verizon Maryland, In... |
| 240-965-#### | Chevy Chase | Landline Numbers | Paetec Communication... |
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 | |