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Module:Location map/data/United States Chicago metropolitan area is a location map definition used to overlay markers and labels on an equirectangular projection map of Chicago metropolitan area. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.
In March 2007, an overlay plan was created for NPA 630 adding area code 331, and 779 was added to 815. With the depletion of new numbers in area codes 312 and 773, an overlay of both of them, area code 872, was created in November 2009, beginning ten-digit dialing within the city limits of Chicago. The remaining area without an overlay in the ...
Area code 630 is the parent area code of the numbering plan area, created in a three-way area code split of area code 708 on August 3, 1996, with the southern suburbs keeping 708 and the northern suburbs receiving 847. Within a decade, 630 was close to exhaustion due to the growth of the Chicago suburbs and the proliferation of cell phones and ...
4.1 Location map templates. 4.2 Creating new map definitions. Toggle the table of contents. Module: Location map/data/United States Chicago. 6 languages.
As a result, the city of Chicago was divided into two area codes, 312 and 773. Rather than divide the city by a north–south area code, the central business district retained the 312 area code, while the remainder of the city took the new 773 code. In 2002, the 847 area code was supplemented with the overlay area code 224.
The Chicago "L" is a rapid transit system that serves the city of Chicago and seven of its surrounding suburbs. The system is operated by the Chicago Transit Authority (CTA). On an average weekday, 759,866 passengers ride the "L", [ 1 ] making it the second-busiest rapid transit system in the United States, behind the New York City Subway .
Chicago's address system has been standardized as beginning at the intersection of State and Madison Streets since September 1, 1909. [75] Prior to that time, Chicago's street system was a hodgepodge of various systems which had resulted from the different municipalities that Chicago annexed in the late 19th century. [75]
Area codes are also assigned for non-geographic purposes. The rules for numbering NPAs do not permit the digits 0 and 1 in the leading position. [1] Area codes with two identical trailing digits are easily recognizable codes (ERC). NPAs with 9 in the second position are reserved for future format expansion.