City of Chicago


312 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).

  • 3127261600 | +1 312-726-1600 Illinois U.S.A.
  • 3127261601 | +1 312-726-1601 Illinois U.S.A.
  • 3127261602 | +1 312-726-1602 Illinois U.S.A.
  • 3127261603 | +1 312-726-1603 Illinois U.S.A.
  • 3127261604 | +1 312-726-1604 Illinois U.S.A.
  • 3127261605 | +1 312-726-1605 Illinois U.S.A.
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  • 3127261609 | +1 312-726-1609 Illinois U.S.A.
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  • 3127261611 | +1 312-726-1611 Illinois U.S.A.
  • 3127261612 | +1 312-726-1612 Illinois U.S.A.
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  • 3127261678 | +1 312-726-1678 Illinois U.S.A.
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  • 3127261698 | +1 312-726-1698 Illinois U.S.A.
  • 3127261699 | +1 312-726-1699 Illinois U.S.A.