City of Chicago


815 Area code: Chicago, Cook - Landline

Directory Numbers

How to dial a U.S. number internationally:

  • Start with your country's exit code (e.g., 011 for the U.S. or Canada).
  • Dial the U.S. country code (+1).
  • Dial the 10-digit phone number (area code + local number).

  • 8153281500 | +1 815-328-1500 Illinois U.S.A.
  • 8153281501 | +1 815-328-1501 Illinois U.S.A.
  • 8153281502 | +1 815-328-1502 Illinois U.S.A.
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  • 8153281574 | +1 815-328-1574 Illinois U.S.A.
  • 8153281575 | +1 815-328-1575 Illinois U.S.A.
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  • 8153281578 | +1 815-328-1578 Illinois U.S.A.
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  • 8153281597 | +1 815-328-1597 Illinois U.S.A.
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  • 8153281599 | +1 815-328-1599 Illinois U.S.A.