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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
815-342 Joliet, IL Will Cell Number
815-343 Oglesby, IL La Salle Cell Number
815-344 Mchenry, IL Mchenry Landline
815-345 Woodstock, IL Mchenry Landline
815-346 Gardner, IL Grundy Landline
815-347 Woodstock, IL Mchenry Cell Number
815-348 Kankakee, IL Kankakee Landline
815-349 Mchenry, IL Mchenry Landline
815-350 Franklin Grove, IL Lee Landline
815-351 Kankakee, IL Kankakee Cell Number
815-352 Kankakee, IL Kankakee Landline
815-353 Woodstock, IL Mchenry Cell Number
815-354 Woodstock, IL Mchenry Cell Number
815-355 Woodstock, IL Mchenry Cell Number
815-356 Crystal Lake, IL Mchenry Landline
815-357 Seneca, IL La Salle Landline
815-358 Cornell, IL Livingston Landline
815-359 Harmon, IL Lee Landline
815-360 Sublette, IL Lee Landline
815-361 Manhattan, IL Will Landline
‹‹ 1 2 3 4 5 6 7 8 9 10 11 12 13 ... 39 40 ››

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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.