Area Code 240
The Area Code is linked to the telephone services. Each area code denotes a particular place. Area code was used an identification number to locate a particular regions. This particular was created and implemented by the famous US telecom giant, AT&T Bell Laboratories in the year 1947. It was called as the North American Numbering Plan and had a wide array of area codes which was given to the different states. The NANP was designed to be used by 24 countries in North America including Canada, US and its territories, the Caribbean island countries. In the beginning the total number of area codes implemented was 86. Today there are as many as 280 area codes serving under NANP.
Area codes 240 cover the state of Maryland. It mainly serves the major portion of the Washington D.C. metro area, area to the north west of Washington and southern Maryland including the communities of Frederick, Gaithersburg, Hagerstown and Cumberland. Originally area code 240 was an overlay of area code 301. The area code 301 had been there since the implementation of the NANP in the year 1947. This was designated as the area code of the entire Maryland. In the year 1991 it was sub divided to 410. Another 6 years after that, in 1997, the area code 240 was introduced.
The area code 240 serves counties like Allegany, Anne Arundel, Baltimore, Calvert, Charles, Frederick, Garrett, Howard, Montgomery, Prince Georges, Saint Mary's and Washington. It covers cities such as Adamstown, Andrews Air Force Base, Annapolis, Brentwood, Brunswick, Bryans Road, Cabin John, California, Callaway, Cascade, Cheltenham, Clarksville, Clinton, Crofton, Cumberland, Emmitsburg, Faulkner, Fort Washington, Frederick, Frostburg, Gaithersburg, Germantown, Grantsville, Great Mills, Greenbelt, Hagerstown, Halethorpe, Hancock, Hughesville, Hyattsville, Ijamsville, Indian Head, Jessup, Kensington, Lanham, Leonardtown, Lexington Park, Liberty Town, Lothian, Mechanicsville, Middletown, Monrovia, Montgomery Village, Oakland, Riverdale, Smithsburg, Temple Hills, Thurmont, Upper Marlboro, Waldorf, Walkersville, Westernport, Williamsport and Woodsboro within the state of Ohio.
It has around 455 different exchanges covered under this area code like 201, 205 - 225, 228 - 239, 241 - 258, 260 - 299, 303 - 339, 341 - 359, 361 - 401, 403 - 489, 490 - 516, 520 - 533, 535 - 553, 573 - 595, 597 - 631, 632 - 654, 662 - 696, 699, 715, 718, 720, 731, 737, 743, 750 - 770, 773 - 790, 793, 794, 804, 812 - 857, 863 - 897, 898, 899, 912 - 920, 925 - 979, 986, 988, 993, 994 and 997.
Several telecom service providers offer different types of plans and schemes catering to a wide array of customers with different kind of needs. Some of the popular ones are Atlantech Online Inc., Close Call America, Core Communications Inc., Data Voice Exchange Inc., E-Z Connections Inc., Information Pathwaves Inc., Voice-Net Technologies Inc., Verizon, Sprint Spectrum, Bell South, Metro Media, Cingular Wireless, AT&T/SBC, Vonage, Choose One, Frontier Communications, Bergen Telecom, Level 3 Communications, Cimco Communications, Comcast Phone, Global COM, Broadwing Communications, T Mobile, Ameritech, Arthur Mutual Telephone Company, Block Communications Inc., Communication Options Inc., New Knoxville Telephone Co., Staley Technologies Inc., World Radio Telecommunications Inc.