Area code 773
The telephone area code 773 was formed in the city of Chicago, Illinois, USA in 1996. The entire city of Chicago and much of northeastern Illinois were originally area code 312. The 708 area code was created for the suburbs, leaving a rump 312, and eventually the city itself was split between 312 in the Downtown/Loop and surrounding areas, and 773, comprising the rest of the city. On August 10, 2009 the Illinois Commerce Commission announced that the area code 872 will "overlay" the area code 773, and will enter service on November 7, 2009
External links
- Map of Illinois area codes at North American Numbering Plan Administration's website
- List of exchanges from AreaCodeDownload.com, 773 Area Code
| North: 847/224 | ||
| West: 708 | area code 773 | East: 312, 219, Lake Michigan |
| South: 708 | ||
| Indiana area codes: 219, 260, 317/463, 574, 765, 812/930 | ||
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