Area Code 240-804 : Area Code 240-899 is your one-stop site for area code lookup, phone number lookup, and free phone number reviews. Following is reverse lookup detail & reviews for area code 240 8xx including 240 area code location map. Major cities such as Rockville, Laurel, Bethesda, Mount Rainier, Smithsburg covered within area code 240 8xx are also listed on this page. More area codes, including those outside of Maryland, are on the homepage.

Reverse Lookup Detail for Area Code 240 8xx

Area code 240 covers part of Marylandstate, covering most of Prince George's, Montgomery, Washington, Charles, St. Mary's counties. It was started on Nov 20, 1998. This region follows (UTC-05:00) timezone. Other popular area codes that belong to Maryland state include 301, 410, 443.

Area Code 240-804 - Area Code 240-899 (Covers 240 8xx xxxx phone numbers)

Area CodeCityCountyPopulationNetwork Operator
240-804NewburgCharles121 806Xo Maryland, Llc
240-812PoolesvilleMontgomery873 814Global Crossing Local Services, Inc.-md
240-813GaithersburgMontgomery873 815Atx Telecommunications Services, Ltd
240-818SmithsburgWashington132 820Verizon Maryland, Inc.
240-823BrandywinePrince George's802 825Xo Maryland, Llc
240-832BethesdaMontgomery873 834Nextel Communications
240-833KensingtonMontgomery873 835Xo Maryland, Llc
240-835RockvilleMontgomery873 837Arbros Communications Licensing Company, N.e. - Md
240-837HughesvilleCharles121 839Xo Maryland, Llc
240-838Capitol HeightsPrince George's802 840Omnipoint Communications Cap Operations, Llc
240-841LaurelPrince George's802 843Allegiance Telecom, Inc. - Md
240-842Glenn DalePrince George's802 844Allegiance Telecom, Inc. - Md
240-843College ParkPrince George's802 845Allegiance Telecom, Inc. - Md
240-844RidgeSt. Mary's86 846Xo Maryland, Llc
240-845College ParkPrince George's802 847Xo Maryland, Llc
240-846ClintonPrince George's802 848Xo Maryland, Llc
240-848GaithersburgMontgomery873 850Sbc Telecom, Inc. - Md
240-857Temple HillsPrince George's802 859Verizon Maryland, Inc.
240-860RockvilleMontgomery873 862Xspedius Management Co Switches Services, Llc - Md
240-861LaurelPrince George's802 863Xspedius Management Co Switches Services, Llc - Md
240-863LaurelPrince George's802 865Xspedius Management Co Switches Services, Llc - Md
240-864RockvilleMontgomery873 866Cavalier East Llc - Md
240-865BaltimoreAnne Arundel490 867Sbc Telecom, Inc. - Md
240-866LaurelPrince George's802 868Xspedius Management Co Switches Services, Llc - Md
240-868Silver SpringMontgomery873 870Cavalier East Llc - Md
240-876BethesdaMontgomery873 878Nextel Communications
240-880Mount RainierPrince George's802 882Focal Communications Corp Of The Mid-atlantic
240-882Capitol HeightsPrince George's802 884Nextel Communications
240-883AshtonMontgomery873 885Focal Communications Corp Of The Mid-atlantic
240-888RockvilleMontgomery873 890At&t Wireless Services, Inc.
240-892Upper MarlboroPrince George's802 894Focal Communications Corp Of The Mid-atlantic
240-893Silver SpringMontgomery873 895At&t Wireless Services, Inc.
240-895Lexington ParkSt. Mary's86 897Verizon Maryland, Inc.
240-897Mount RainierPrince George's802 899Focal Communications Corp Of The Mid-atlantic
240-898Mount RainierPrince George's802 900Focal Communications Corp Of The Mid-atlantic
240-899BethesdaMontgomery873 901Omnipoint Communications Cap Operations, Llc


Recent Free Phone Number Reviews in Area Code 240 8xx

Gerardo Morazan De Lira commented on 240-833-8331
This review was created at 2011-04-23T22:35
Recent reviews for Area Code 240 833

Map for area code 240 8xx

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240 Area Code

At, you'll find current information on 240area code, including 240 area code location & map. Other phone area code may be searched using's area code locator service on the homepage. Use the phone number search function above to instant verify area code lookup & phone number lookup.

Maryland Area Codes Directory provides a free area codes directory with detailed information on the various USA area codes, area codes listing, and other area codes phone details. also lists international area codes within the North American Numbering Plan. And you can verify owners of phone numbers using the reverse number lookup service by entering a 10 digit phone number in the top most text box.

240 Area Code Finder

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Maryland Area Code Lookup is an excellent resource for area code lookup and reverse number lookup. Here you'll find area codes, city, county, population & operator list table of area codes within the United States. Also, you can verify owners of phone numbers with full name & address information for background check. For a full list of area codes, visit home page. It provides drilldown for USA area codes and area code location maps.

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Telephone/Landline Area Codes is a resource of North American telephone area codes. Beyond area code listings, relevant information about each area code is detailed. For example, this page details area code 240-8. You can also search area codes by state, and within the NANP, find country area codes.

Free Area Codes Locator for Maryland

The area codes locator shows the coverage area for each phone number area code. Area code locations are also listed by city next to the area code maps on this page. Also, read reviews within an area code.

240 Area Code Reviews provides local reviews for phone numbers and aggregates results per area code. It shows you the area code location covered by each area code; for example, the LA area code reveiws covers local business phone numbers area in Los Angeles. This page details area code 240-8. All USA states area codes may be found using

Telephone Area Codes in Maryland

The telephone area code prefixes local phone numbers & is not required to be dialed. For area codes by city, search Area codes telephone differ from region to region, and in some places the area code must be dialed even when calling locally within that region. Find out more with area code decoder.

External links & resources for area code 240 in Maryland

  • CitySites Pages for Maryland (Source: Official CitySites)
  • Wikipedia Article on Area Code 240 (Source: Wikipedia)
  • State Information Resources for Maryland (Source: State Information)