Area code 847 and 224

Both area code 847 and area code 224 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 in Illinois. 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.

[edit] See also

State of Illinois area codes: 217, 224, 309, 312, 331, 618, 630, 708, 773, 779, 815, 847
	North: 262
West: 815/779	area code 847 and 224	East: Lake Michigan
	South: 630/331, 708, 773
State of Wisconsin area codes: 262, 414, 608, 715, 920

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