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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
240-223 Mount Rainier, MD Prince Georges Landline
240-224 Gaithersburg, MD Montgomery Cell Number
240-225 Frederick, MD Frederick Landline
240-228 Laurel, MD Prince Georges Landline
240-229 Waldorf, MD Charles Landline
240-230 Hughesville, MD Charles Landline
240-231 Hagerstown, MD Washington Landline
240-232 Mount Rainier, MD Prince Georges Landline
240-233 Newburg, MD Charles Landline
240-234 Mount Rainier, MD Prince Georges Cell Number
240-235 Bethesda, MD Montgomery Landline
240-236 Frederick, MD Frederick Landline
240-237 Callaway, MD Saint Marys Landline
240-238 Rockville, MD Montgomery Landline
240-239 Leonardtown, MD Saint Marys Landline
240-241 Chevy Chase, MD Montgomery Landline
240-242 Kensington, MD Montgomery Landline
240-243 Gaithersburg, MD Montgomery Landline
240-244 Mount Rainier, MD Prince Georges Landline
240-245 Glenn Dale, 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.