Number Details

Cities in Area Code 240

Adelphi, Alexandria, Annapolis, Annapolis Junction, Baileys Crossroads, Baltimore, Beltsville, Bethesda, Buckeystown, Chevy Chase, Clinton, College Park, Cresaptown, Cumberland, Damascus, Frederick, Gaithersburg, Germantown, Hagerstown, Herndon, Hyattsville, Ijamsville, Lanham, Laurel, Leonardtown, Lexington Park, Manassas, Martinsburg, Mclean, Monrovia, Mt Airy, Muirkirk, Myersville, Odenton, Pikesville, Reston, Rockville, Silver Spring, Smithsburg, Sterling, Temple Hills, Thayerville, Tysons Corner, Vienna, Washington, Wheaton, White Marsh

Metropolitan Statisitical Areas in Area Code 240

Baltimore, Towson, Cumberland, Hagerstown, Martinsburg, Lexington Park, Washington, Arlington, Alexandria

Counties in Area Code 240

Allegany, Carroll, Charles, Frederick, Garrett, Howard, Montgomery, Prince George's, St. Mary's, Washington

States / Provinces


*Approximate area serviced by the 240 area code

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