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Boone County Area Codes

About Boone County Area Codes

The county of Boone County, located in Illinois, is served by 2 telephone area code(s) in this dataset. These calling codes cover cities, suburbs, and unincorporated communities across the county.

Major phone area codes used in Boone County include 779, 815. The county mainly follows the America/Chicago time zone.

Cities and towns served by these area codes in Boone County include Belvidere.

List of Area Codes in Boone County, Illinois

The table below lists all telephone area codes used in Boone County, Illinois, along with their associated cities and time zones from this dataset.


S.N. Area Code Cities Time Zone(s)
1 779 Belvidere America/Chicago
2 815 Belvidere America/Chicago


Related Area Code Pages

Explore related area code resources on Burning Compass:

  • All area codes in Illinois
  • Individual area code details are available from the table above.

County Area Codes in Illinois

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  2. Boone County Area Codes
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