General info area code 312

Area code 312
State Illinois

Counties of the area code 312

The 312 area code is found in 1 county.


Cities and other places with area code 312

There are 1 cities and places with the 312 area code. For more information of a specific place select one below.


312 area code on the map

Zip codes with area code 312

The are code 312 has 19 zip codes.


Area codes near area code 312

The area code 312