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Area code 773 serves Local calling guide: Chicago Zone 01: Calumet, IL
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by the North American Numbering Plan Administration
List of exchanges in the 773 Area Code
from AreaCodeDownload.com
Area code 773 serves Chicago, Illinois
(''City in a Garden''); I Will
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, map_caption = Interactive Map of Chicago
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, outside the Loop and the innermost neighborhoods.
Originally, all of Chicago and its suburbs were in area code 312. Then, in 1989, area code 708 was created for the suburbs, leaving the city itself in area code 312.
By the mid-1990s, Chicago's continued growth and the proliferation of cell phones and pagers made it apparent that the city needed a new area code. It was decided to split off all of the city outside the downtown area as 773. The new area code went into effect on October 12, 1996. Permissive dialing of 312 continued across Chicago until January 11, 1997. On August 10, 2007, the Illinois Commerce Commission announced that area code 872 would overlay area codes 312 and 773; it went into service on November 7, 2009.
The Illinois side of the Chicago area–312/773/872, 708, 847/224, 630/331 and portions of 815/779–is one of the largest local calling areas in the United States; with few exceptions, no long-distance charges are applied from one portion of the metro area to another./ref>
References
External links
by the North American Numbering Plan Administration
List of exchanges in the 773 Area Code
from AreaCodeDownload.com
773
__NOTOC__
Year 773 ( DCCLXXIII) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. The denomination 773 for this year has been used since the early medieval period, when the Anno Domini calendar e ...
Chicago
773
__NOTOC__
Year 773 ( DCCLXXIII) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. The denomination 773 for this year has been used since the early medieval period, when the Anno Domini calendar e ...
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