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Area codes 812 and 930 are telephone area codes in the North American Numbering Plan (NANP) for the southern third of the state of Indiana. The numbering plan area (NPA) includes Evansville and most of its suburbs, the Indiana portions of the Louisville and Cincinnati metropolitan areas, and the cities of Bedford, Bloomington, Columbus ...
312: Chicago, the central city area including the Chicago Loop and the Near North Side. 618/730: Southern Illinois, including Carbondale and most of the Metro East region of St. Louis suburbs in Illinois. 630/331: West suburbs of Chicago in DuPage County and Kane County including Wheaton, Naperville, and Aurora.
When the first area codes were mapped out, southern Indiana was assigned 812 and has retained it ever since. The cities of Evansville, Vincennes, Terre Haute, Bloomington, Columbus, Madison and Jeffersonville are all included in the 812 area code. The entire area served by 812 received an overlay code of 930 in 2014, with 10-digit dialing initially planned to become mandatory throughout the ...
Chicago. The Chicago metropolitan area, also referred to as the Greater Chicago Area and Chicagoland, is the largest metropolitan statistical area in the U.S. state of Illinois, and the Midwest, containing the City of Chicago along with its surrounding suburbs and satellite cities. Encompassing 10,286 square mi (28,120 km 2), the metropolitan ...
There are 178 official neighborhoods in Chicago. [ 1 ] Neighborhood names and identities have evolved due to real estate development and changing demographics. [ 2 ] Chicago is also divided into 77 community areas which were drawn by University of Chicago researchers in the late 1920s. [ 3 ] Chicago's community areas are well-defined, generally contain multiple neighborhoods, and depending on ...
Area code 312 is a telephone area code in the North American Numbering Plan for the city of Chicago, including downtown, the Chicago Loop, and its immediate environs.
Area codes 847 and 224 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of Illinois. The numbering plan area (NPA) comprises the northeastern part of Illinois and many northern suburbs of Chicago. This includes most of Lake County, the northern part of Cook County, the northern part of Kane County, and a ...
The original North American area codes were established by the American Telephone and Telegraph Company (AT&T) in 1947, after the demonstration of regional Operator Toll Dialing during the World War II period. The program had the goal of speeding the connecting times for long-distance calling by eliminating intermediary telephone operators. Expanding this technology for national use required a ...