Area Code 872
Area Code 872 is in Illinois
(847 and 224) - (815 and 779)
(630 and 331) - (312 and 872)
(773 and 872) - (217 and 447)
(708 and 464) - (309 and 861)
Area Code 872 History:
11/07/2009
Area code 872 was officially put into service. Area code 872 is an overlay of area codes 312 and 773.
Counties in Illlinois within area code 872 include:
Cook County.
Major cities or places in Illlinois within area code 872 include:
Area codes 773 and 872 serve the areas outside of the Chicago downtown area. Chicago originally utilized area code 312 which was one of the original area codes assigned to Illinois in 1947. In 1996 area code 312 was split to form area code 773. Area code 312 then served the downtown area, or inside "The Loop" and area code 773 served the remainder of the city. On November 7, 2009 area code 872 was officially put into service. Area code 872 is an overlay of both 312 and 773.
