e/Area codes 847 and 224

Information
has gloss	eng: 847 and 224 are the North American telephone area codes for part of the state of Illinois. They are part of an overlay plan that covers most of Lake County, the northern part of Cook County, the northern part of Kane County, and a small part of McHenry County. On January 5, 2002 area code 224 overlaid the 847 NPA and 11-digit dialing was implemented. Previously, on January 20, 1996 area code 847 split off from area code 708.
lexicalization	eng: Area codes 847 and 224
instance of	c/Area codes in Illinois