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Northbrook, Illinois

224-639 is the telephone number registered for the city of the Northbrook, which is situated in the northern edge of the county of Cook, Illinois and the population was 33435 which are according to 2000 census. When the city was incorporated in the year 1901, the village was known as the Shermerville which is in the name of the Fredrick Schemer and village name is changed in the year 1923 and it was an effort which would improve his public image. In 1953 the Glenbrook North high school and they is corporate headquarters of the Allstate Corporation, Underwriters Laboratories, The Land of Nod, and Crate and Barrel. Now the village of Northbrook has changed itself into a town of shopping mall, the public library and Ed Rudolph Velodrome.

The village of Northbrook is being served by the area code of 224 and the exchange code of 639. This combination of the area code is being used for the purpose of allocating the phone number. This area code extension can also be used for finding out information about any ZIP area code or for finding information about any service provider in an area or province. However, before going into a detail description of the area code it is necessary to know about the different landline and cellular provider available in the city.

The landline provider: A T & T, Comtel Of Illinois, Comtec Communications Co, Comcast, Data Telecom Services, Globcom Inc, Business Communication Analyst, Bay Networks, Maine Telephone Company, Pmt Pay Telephone Co, Venturi Technology Partners, Twelve Think, Royal Phone Company Llc.

The cellular provider: Areawide Cellular Incorporated, AT & T, On Site Celluar, North Shore Wireless, Sound Experience, Verizon Wireless, Primeco, Verizon Wireless, Sprint Store, Loyola cellular, CBeyond Communications, LLC.

The area code is actually is a three digit number, which is also known as the North American Numbering Plan or NANP. This area code system was developed in the year 1940 by the AT&T and the Bell laboratories. However, it was in 1947 that this area code system was implemented for the first time and since then it is being used for different are4as and provinces al over America and Canada as well. In the initial stages, these area codes were represented with number 0 as the middle number but later it was changed to number 1 as the middle number but only for the areas and provinces which has been allotted with more than one area code. In case of the first and the last number, the three digit area code was decided on the basis of the density of the population. This means, that the area which is having high incidence of population will have lower number of area code. In this case the area code of 224 for the part of Illinois. These area codes are also included for the area codes of Cook County, Kane County, Lake County, and McHenry County. The area code 224 was overlaid the area code of 847 in the year 5th January 2002. While the exchange code of 639 was introduced in the year 2004 and it serve the ZIP area code of 60062.

For more information, you can log on to:

http://en.wikipedia.org/wiki/Area_code_224

http://en.wikipedia.org/wiki/Northbrook, _Illinois