# Area code 773

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Area code in the U.S. state of Illinois

The numbering plan areas of Illinois

**Area code 773** is a telephone [area code](/source/NPA_code) in the [North American Numbering Plan](/source/North_American_Numbering_Plan) (NANP) in the [U.S. state](/source/U.S._state) of [Illinois](/source/Illinois). It serves the outer areas of [Chicago](/source/Chicago%2C_Illinois), outside [the Loop](/source/Chicago_Loop) and the innermost neighborhoods.

Originally, all of Chicago and its suburbs used [area code 312](/source/Area_code_312). In 1989, [area code 708](/source/Area_code_708) was created for the suburbs, leaving the city with 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.[1][2] On August 10, 2007, the Illinois Commerce Commission announced that [area code 872](/source/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](/source/Area_codes_847_and_224), [630/331](/source/Area_codes_630_and_331) and portions of [815/779](/source/Area_codes_815_and_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.[3]

Fictional Chicago chef [Carmy Berzatto](/source/Carmy_Berzatto) from *[The Bear](/source/The_Bear_(TV_series))* TV series has a tattoo featuring *773*.[4]

## See also

- [List of Illinois area codes](/source/List_of_Illinois_area_codes)

- [List of North American Numbering Plan area codes](/source/List_of_North_American_Numbering_Plan_area_codes)

## References

1. **[^](#cite_ref-1)** ["AT&T Area Code History: Illinois"](https://web.archive.org/web/20071028144526/http://www.att.com/gen/general?pid=1717). [AT&T](/source/AT%26T). 2009. Archived from [the original](http://www.att.com/gen/general?pid=1717) on 2007-10-28. Retrieved 2009-08-19.

1. **[^](#cite_ref-2)** ["Grace Period Ends for 773 Area Code"](https://www.chicagotribune.com/1997/01/11/grace-period-ends-for-773-area-code/). *Chicago Tribune*. 1997-01-11. Retrieved 2020-10-24.

1. **[^](#cite_ref-3)** [Local calling guide: Chicago Zone 01: Calumet, IL](https://localcallingguide.com/lca_exch.php?exch=047801)

1. **[^](#cite_ref-4)** Selvam, Ashok (2022-08-01). ["'The Bear' Star Jeremy Allen White on Why Carmy Is No Dirtbag"](https://chicago.eater.com/2022/8/1/23287582/the-bear-star-jeremy-allen-white-hulu-reasons-that-carmy-is-no-dirtbag). *Eater Chicago*. Retrieved 2025-12-29.

Illinois area codes: 217/447, 309/861, 312, 630/331, 618/730, 708/464, 773, 815/779, 847/224, 872 North: 224/847 West: 708 773 East: 312, 219, Lake Michigan South: 464/706 Indiana area codes: 219, 260, 317/463, 574, 765, 812/930

[41°52′48″N 87°37′54″W / 41.88°N 87.6316667°W / 41.88; -87.6316667](https://geohack.toolforge.org/geohack.php?pagename=Area_code_773&params=41.88_N_87.6316667_W_type:adm3rd_region:US-IL)

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