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Area Code 815 - Chicago, IL

Below is the information for Area Code 815
General Information for Area Code 815
Country United States
State/Province Illinois
Major City Chicago
Time Zone Central

Phone directory of numbers beginning with Area Code 815 Prefixes

Prefix Primary City County Phone Type
815-382 Woodstock, IL Mchenry Cell Number
815-383 Crescent City, IL Iroquois Cell Number
815-384 Malta, IL Dekalb Landline
815-385 Mchenry, IL Mchenry Landline
815-386 Kankakee, IL Kankakee Cell Number
815-387 Rockford, IL Winnebago Landline
815-388 Mchenry, IL Mchenry Landline
815-389 Beloit, IL Winnebago Landline
815-390 Braidwood, IL Will Landline
815-391 Rockford, IL Winnebago Landline
815-392 Kinsman, IL Grundy Landline
815-393 Monroe Center, IL Ogle Landline
815-394 Rockford, IL Winnebago Landline
815-395 Rockford, IL Winnebago Landline
815-396 Steward, IL Lee Landline
815-397 Rockford, IL Winnebago Landline
815-398 Rockford, IL Winnebago Landline
815-399 Rockford, IL Winnebago Landline
815-400 Morrison, IL Whiteside Landline
815-401 Kankakee, IL Kankakee Landline
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Location Details

Area code is a type of numbering scheme used in telecommunication. It divides the territories of its member countries, the code is a three-digit code. The digits 0 and 1 applied for central office codes. Other digits were applied into geographic areas of the service territory.

  • 200: easily recognizable code (ERC)
  • 201: New Jersey
  • 202: Washington, D.C.
  • 203: Connecticut
    • and so on.

If you want to get more informatons of the areacode, Input an areacode into the above search area, get what you want.