Area Code 815

Area Code 815 is in Illinois

Other Illinois Area Codes
217, 224, 309, 312, 331, 618, 630, 708, 773, 779, 815, 847, 872

Illinois Area Code Overlays
(847 and 224) - (815 and 779)
(630 and 331) - (312 and 872)
(773 and 872)

Area Code 815 History:

01/01/1947
Area code 815 was put into service. In 1957 area code 815 was split, along with a portion of area code 217, to form area code 309. In 2007 area code 815 was overlaid with area code 779.

Counties in Illinois within area code 815 include:

Boone County, Bureau County, Carroll County, DeKalb County, Ford County, Grundy County, Henry County, Iroquois County, Jo Daviess County, Kane County, Kankakee County, Kendall County, La Salle County, Lee County, Livingston County, Marshall County, McHenry County, McLean County, Ogle County, Putnam County, Stephenson County, Whiteside County, Will County, and Winnebago County.

Major cities or places in Illinois within area code 815 include:

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 area codes 779 and 815 overlay service area.

Illinois Area Code Map



Area Code Look Up - Select An Area Code To Find Its location





Related pages


lakeview area codejeddah calling codebeverly hills area codesbidwell ohtime zone in akron ohiotelephone area code 330 locationpenn area codeeagle pass area codearea code 714 location californiawhere is 501 area code locatedtelephone code 917telephone area code 909where is an 832 area codepost falls idaho time zonesilver spring maryland time zone330 area code ohioarea code for lexington kentuckybvi countryterre haute area codewhere is hughes arkansasarea codes for new york citytelephone area code 9081-512 area codekennesaw ga area codedialing mexico from canadawhat area code is 414 in californiawhere is the area code 234 fromarizona's area codewinston nm405 area code zip codewisconsin area codest thomas sanford ncusa new jersey phone codeohio state area codewilliamsburg brooklyn ny zip codearea code 818 california1801 area codearea code 717 exchangesconn area codeswhat is a 908 area codelewiston idaho time zonearea code wilmington ncphone area code 727lorain ohio zip codewhere is the 440 area code locatedarea code 604 ontarioarea code for middlesexbeech bluffphone book richmond bcdial code 971ireland dialing codebrookhaven ny zip codehow to dial from india to usalubbock tx area codesodessa tx time zonezip code for west jefferson ohiobloomington illinois area codewhere is the 229 area codebremen alphone code 0011area code 646 exchanges562 area code citywhat is 626 area code886 area code statearea code 313 locationdonaldson indianawhere is area code 816 canadaarea code 0208honduras dialing codedublin dialling codewhere is area code 602 locatedhurlburt field area codewa telephone codewhat is the area code for clearwater floridaarea code 507 usatravis afb area code