Active Prefixes in Area Code 240

Prefix Primary City Phone Type Company
240-234-#### Washington Zone 2 Wireless Numbers Cellco Partnership D...
240-235-#### Washington Zone 2 Landline Numbers Paetec Communication...
240-236-#### Frederick Landline Numbers Verizon Maryland, In...
240-237-#### Washington Landline Numbers Teleport Communicati...
240-238-#### Washington Zone 10 Landline Numbers Paetec Communication...
240-239-#### Chevy Chase Landline Numbers Core Communications,...
240-241-#### Lanham Landline Numbers Starpower Communicat...
240-242-#### Washington Zone 11 Landline Numbers Starpower Communicat...
240-243-#### Gaithersburg Landline Numbers Allegiance Telecom, ...
240-244-#### Washington Landline Numbers Starpower Communicat...
240-245-#### Lanham Landline Numbers Starpower Communicat...
240-246-#### Gaithersburg Landline Numbers Starpower Communicat...
240-247-#### Washington Zone 3 Landline Numbers Allegiance Telecom, ...
240-248-#### Reston Landline Numbers Global Naps South, I...
240-249-#### Washington Landline Numbers Teleport Communicati...
240-250-#### Reston Landline Numbers Global Naps South, I...
240-251-#### Highfield Landline Numbers Core Communications,...
240-252-#### Gaithersburg Landline Numbers Level 3 Communicatio...
240-253-#### Landline Numbers Global Crossing Loca...
240-254-#### Hughesville Landline Numbers Teleport Communicati...
240-255-#### Poolesville Landline Numbers Global Naps South, I...
240-256-#### Washington Landline Numbers Teleport Communicati...
240-257-#### Nanjemoy Landline Numbers Teleport Communicati...
240-258-#### McLean Landline Numbers Teleport Communicati...
240-260-#### Landline Numbers Allegiance Telecom, ...
240-261-#### Gaithersburg Landline Numbers Global Naps South, I...
240-262-#### Washington Wireless Numbers Sprint Spectrum L.p....
240-263-#### Washington Zone 2 Wireless Numbers Sprint Spectrum L.p....
240-264-#### Beltsville Landline Numbers Verizon Maryland, In...
240-265-#### Washington Zone 2 Wireless Numbers Sprint Spectrum L.p....
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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