HomeIllinois815 area code   Which country code is 815?
  • City Name
  • Country Code
  • Area Code
  • Joliet
  • 1
  • 815
  • La Salle
  • 1
  • 815
  • Rockford
  • 1
  • 815
Country Code + CITY AREA CODE + NUMBER
Where is area code 815? The area code for city is 815.
USA Telephone code 815 is dialed after the IDD. United States international dialing 815 is followed by an area code. The 815 area code table below shows the various city.Area code lookup for all cities or use the area codes locator to find which city a phone area code belongs to.
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