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Area codes 815 and 779. 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.
In 1957, area code 815 was split for the assignment of area code 309 to western central Illinois. No further changes took place for 33 years. In 1989, area code 708 was created for all of the suburbs in the Chicago metropolitan area while the city of Chicago kept the original 312. Area codes 847 (northern suburbs) and 630 (western suburbs) were ...
FIPS code. 17-65000. Website. rockfordil.gov. [9] Rockford is a city in Winnebago County, Illinois, United States. Located in far northern Illinois on the banks of the Rock River, Rockford is the county seat of Winnebago County (with a small portion of the city located in Ogle County). The population was 148,655 at the 2020 census, making ...
Sometime after September 1956, [1] the 815 numbering plan area was divided roughly in half along a north-westerly to south-easterly running line, assigning area code 309 to its western part. It was the only new area code created in Illinois between 1947 and the 1989 creation of area code 708.
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From 1947 until 1988, the Illinois portion of the Chicago metro area was served by a single 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 became common to call suburbanites "708'ers", in reference to their area code.
On October 7, 2007, area code 331 began overlaying area code 630, making ten-digit dialing mandatory in the area. 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 ...
The area code for Freeport is 815 with an overlay area code of 779 as of March 17, 2007. Climate and flooding ... Harry Boeke, Illinois state senator and businessman;