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Area Code 240 - Baltimore, MD

Below is the information for Area Code 240
General Information for Area Code 240
Country United States
State/Province Maryland
Major City Baltimore
Time Zone Eastern

Phone directory of numbers beginning with Area Code 240 Prefixes

Prefix Primary City County Phone Type
240-434 Leonardtown, MD Saint Marys Landline
240-435 Waldorf, MD Charles Cell Number
240-436 Ijamsville, MD Frederick Landline
240-437 Sandy Spring, MD Montgomery Landline
240-438 Silver Spring, MD Montgomery Cell Number
240-439 Frederick, MD Frederick Cell Number
240-440 Frederick, MD Frederick Cell Number
240-441 Oxon Hill, MD Prince Georges Cell Number
240-442 Oakland, MD Garrett Landline
240-444 Laurel, MD Prince Georges Cell Number
240-445 Bethesda, MD Montgomery Cell Number
240-446 Frederick, MD Frederick Cell Number
240-447 Rockville, MD Montgomery Cell Number
240-448 Waldorf, MD Charles Cell Number
240-449 Gaithersburg, MD Montgomery Cell Number
240-450 Silver Spring, MD Montgomery Landline
240-452 Hagerstown, MD Washington Landline
240-453 Rockville, MD Montgomery Landline
240-454 Gaithersburg, MD Montgomery Cell Number
240-455 Oxon Hill, MD Prince Georges Landline
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Location Details

Area code is a type of numbering scheme used in telecommunication. It divides the territories of its member countries, the code is a three-digit code. The digits 0 and 1 applied for central office codes. Other digits were applied into geographic areas of the service territory.

  • 200: easily recognizable code (ERC)
  • 201: New Jersey
  • 202: Washington, D.C.
  • 203: Connecticut
    • and so on.

If you want to get more informatons of the areacode, Input an areacode into the above search area, get what you want.