Area codes 815 and 779

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Area code 815 is a telephone area code for most of northern Illinois outside of the Chicago and Quad Cities areas.

815 was one of the four original Illinois area codes set up in 1947. It was split in 1957, when most of its western portion was combined with part of the northern portion of area code 217 to form area code 309.[1]

In preparation of an overlay area code (779), all calls from the 815 area needed to be dialed with an area code beginning on February 17, 2007. A month later, the 779 code was activated.

Municipalities in area codes 815/779[edit]

References[edit]

  1. ^ History of area code 309

See also[edit]

External links[edit]

Illinois area codes: 217, 224, 309, 312, 331, 618, 630, 708, 773, 779, 815, 847, 872
North: 608, 262
West: 563 Area codes 779 and 815 East: 847/224, 630/331, 708
South: 309, 217
Wisconsin area codes: 262, 414, 608, 715, 920
Indiana area codes: 219, 260, 317, 574, 765, 812(/930)
Iowa area codes: 319, 515, 563, 641, 712

Coordinates: 40°11′44″N 89°31′00″W / 40.195659°N 89.516602°W / 40.195659; -89.516602