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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.
Area code 815 serves the state of Illinois. This area code was assigned on January 1st, 1947. On January 1st, 1947 it went into service. 815 is a General Purpose Code. 815 service area does overlap with 779 area codes. Dialing pattern for local calls within the same NPA (area code) is 1+10D.
Jan 18, 2011 · Area code 779 serves the state of Illinois. This area code was assigned on February 6th, 2004. On March 17th, 2007 it went into service. 779 is a General Purpose Code. 779 service area does overlap with 815 area codes. Dialing pattern for local calls within the same NPA (area code) is 1+10D.
815/779: Northern Illinois outside of the immediate Chicago area including Joliet, Kankakee, LaSalle, DeKalb, and Rockford. Area code 815 was overlaid with area code 779 in 2007. 847/224: North and northwest suburbs of Chicago including all of Lake County, part of McHenry County, northern Cook County, and northeastern Kane County.
Rockford, Illinois Area Code. Rockford, IL is officially utilizing an area code overlay in which area codes 779 and 815 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.
Area codes 779 and 815 serve a large area of northern Illiois including the larger cities and communities of Crystal Lake, DeKalb, Freeport, Joliet, Kankakee, Loves Park, Machesney Park, McHenry, Rockford, Romeoville and Woodstock, in addition to many smaller communities within the service area.
Jun 1, 2024 · 779 Area Code located in Illinois, including 122 cities, 23 counties, 1 time zone, map, Census demographics, and 266 active prefixes.
Feb 6, 2004 · Area code 779 is located in NW Illinois and includes Rockford. View the 779 area code map, major cities, location, timezone and more on TeraCodes.com.
There are 8 active area codes in the state of Indiana. Each of these area codes are listed below. There are two lists that Wirefly provides for the area codes in Indiana. The first table below shows the most populated cities in Indiana with the area codes listed next to them.
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Feb 8, 2007 · In addition, all Verizon customers with 815 and 779 area codes will need to dial 1, plus the area code, plus the seven-digit telephone number when placing all calls, even those within the customers' home area codes. The changes are required by the Illinois Commerce Commission.
