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).

  • 3124279900 | +1 312-427-9900 Illinois U.S.A.
  • 3124279901 | +1 312-427-9901 Illinois U.S.A.
  • 3124279902 | +1 312-427-9902 Illinois U.S.A.
  • 3124279903 | +1 312-427-9903 Illinois U.S.A.
  • 3124279904 | +1 312-427-9904 Illinois U.S.A.
  • 3124279905 | +1 312-427-9905 Illinois U.S.A.
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  • 3124279908 | +1 312-427-9908 Illinois U.S.A.
  • 3124279909 | +1 312-427-9909 Illinois U.S.A.
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  • 3124279911 | +1 312-427-9911 Illinois U.S.A.
  • 3124279912 | +1 312-427-9912 Illinois U.S.A.
  • 3124279913 | +1 312-427-9913 Illinois U.S.A.
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  • 3124279919 | +1 312-427-9919 Illinois U.S.A.
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  • 3124279925 | +1 312-427-9925 Illinois U.S.A.
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  • 3124279947 | +1 312-427-9947 Illinois U.S.A.
  • 3124279948 | +1 312-427-9948 Illinois U.S.A.
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  • 3124279950 | +1 312-427-9950 Illinois U.S.A.
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  • 3124279953 | +1 312-427-9953 Illinois U.S.A.
  • 3124279954 | +1 312-427-9954 Illinois U.S.A.
  • 3124279955 | +1 312-427-9955 Illinois U.S.A.
  • 3124279956 | +1 312-427-9956 Illinois U.S.A.
  • 3124279957 | +1 312-427-9957 Illinois U.S.A.
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  • 3124279967 | +1 312-427-9967 Illinois U.S.A.
  • 3124279968 | +1 312-427-9968 Illinois U.S.A.
  • 3124279969 | +1 312-427-9969 Illinois U.S.A.
  • 3124279970 | +1 312-427-9970 Illinois U.S.A.
  • 3124279971 | +1 312-427-9971 Illinois U.S.A.
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  • 3124279973 | +1 312-427-9973 Illinois U.S.A.
  • 3124279974 | +1 312-427-9974 Illinois U.S.A.
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  • 3124279976 | +1 312-427-9976 Illinois U.S.A.
  • 3124279977 | +1 312-427-9977 Illinois U.S.A.
  • 3124279978 | +1 312-427-9978 Illinois U.S.A.
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  • 3124279981 | +1 312-427-9981 Illinois U.S.A.
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  • 3124279997 | +1 312-427-9997 Illinois U.S.A.
  • 3124279998 | +1 312-427-9998 Illinois U.S.A.
  • 3124279999 | +1 312-427-9999 Illinois U.S.A.