Area codes 815 and 779 are telephone area codes in the North American Numbering Plan (NANP) for most of northern Illinois outside the Quad Cities areas. It also serves the Joliet area and some of Chicago's western and northwestern suburbs. 815 was one of the four original Illinois area codes set up in 1947.
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Redirect to: Area codes 815 and 779.
815/779: Northern Illinois outside of the immediate Chicago area including Joliet, Kankakee, LaSalle, DeKalb, and Rockford. Area code 815 was overlaid with area ...
815 · Illinois (much of northern Illinois outside Chicago and its immediate surrounding suburbs: Rockford and its suburbs, Belvidere, La Salle, Peru, DeKalb ...
815, US:IL, Illinois (northern Illinois, except Chicago and Quad Cities) ; 816, US:MO, Missouri (northwestern Missouri, including Kansas City) ; 901, US:TN ...
Area codes · 815 and 779 · FIPS code, 17-65000. Website, rockfordil.gov. Settled in the mid-1830s as Midway, Illinois (roughly equidistant between Lake Michigan ...
The portion of Will County around Joliet uses area codes 815 and 779, while 630 and 331 are for far northern Will County and 708 is for central and eastern ...
... area code, 312, which abutted the 815 area code. In 1988 the 708 area code was introduced and the 312 area code became exclusive to the city of Chicago. It ...
Kankakee, Illinois ; 60901 · 815, 779 · 17-38934 · 2395489.
Area code 312 · Area code 447 · Area codes 618 and 730 · Area codes 630 and 331 · Area codes 708 and 464 · Area code 773 · Area codes 815 and 779 · Area codes ...