NPA - 240 Maryland (MD)

The 240 Area Code is located in the state of Maryland. Area Code 240 is one of the 312 three-digit telephone area codes in the USA. It covers roughly 350,725 unique phone numbers and 7,359,044 individuals near the cities of Washington-Arlington-Alexandria.

NPA - 240 History: Area code 240 was put into service. Area code 240 is an overlay of area code 301.

There are a few special area codes with the last two digits 422 match, these are known as easily recognizable codes (ERCs). The 8xx set of numbers are reserved for toll-free services and communication.

Those numbers can be found in the following cities or locations: Maryland (MD).

1. AreaCodes Directory
2. 240

240 Stats:

Cities in area code 240:

Adamstown, Ashton, Baltimore, Beltsville, Bethesda, Brandywine, Cabin John, Callaway, Capitol Heights, Chevy Chase, Clarksville, Clinton, College Park, Columbia, Crofton, Cumberland, Damascus, Emmitsburg, Frederick, Frostburg, Gaithersburg, Glenn Dale, Grantsville, Greenbelt, Hagerstown, Hancock, Highfield, Hughesville, Hyattsville, Ijamsville, Indian Head, Kensington, La Plata, Laurel, Leonardtown, Lexington Park, Mccoole, Mechanicsville, Middletown, Mount Airy, Mount Rainier, Myersville, Nanjemoy, Newburg, Oakland, Odenton, Oxon Hill, Poolesville, Ridge, Rockville, Sandy Spring, Silver Spring, Smithsburg, Tall Timbers, Temple Hills, Thurmont, Upper Marlboro, Waldorf, Williamsport.

Related phone operators in Area Code 240:

365 Wireless, AT&T Local, Allegiance Telecom, Atx Telecommunications Services, Ltd, Baltimore-washington Telephone (bwt), Bandwidth.com Clec, Broadvox-clec - DC, Broadwing Communications. LLC, Cavalier East LLC, Cavalier Telephone Mid-atlantic, Cellco Partnership DBA Verizon Wireless, Centurylink Communications LLC, Comcast Phone Of Northern Maryland, Core Communications, Dslnet Communications Va, Global Crossing Local Services-md, Global Naps South, Halo Wireless Services, Leap Wireless Intl DBA Cricket Comm, Level 3 Communications, Lightwave Communications, Local Access LLC, Lumos Networks Inc. - VA, Mci Worldcom Communications, Metro PCS, Mte DBA Mte Paging Network, New Cingular Wireless PCS - DC, Omnipoint Communications Cap Operations, Paetec Communications, Paetec Communications - DC, Peerless Network Of Maryland, Peerless Network Of The District Of Columbia,, Shentel Communications, Sprint Spectrum L.p., Starpower Communications, Telcove Operations, Teleport Communications America, Teleport Communications America - DC, Tw Telecom Of Maryland LLC, Us Lec Of Maryland, Uscoc Of Cumberland DBA United States Cel Md, Verizon Maryland, Xo Maryland, Ymax Communications Corp..