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).

  • 3124799000 | +1 312-479-9000 Illinois U.S.A.
  • 3124799001 | +1 312-479-9001 Illinois U.S.A.
  • 3124799002 | +1 312-479-9002 Illinois U.S.A.
  • 3124799003 | +1 312-479-9003 Illinois U.S.A.
  • 3124799004 | +1 312-479-9004 Illinois U.S.A.
  • 3124799005 | +1 312-479-9005 Illinois U.S.A.
  • 3124799006 | +1 312-479-9006 Illinois U.S.A.
  • 3124799007 | +1 312-479-9007 Illinois U.S.A.
  • 3124799008 | +1 312-479-9008 Illinois U.S.A.
  • 3124799009 | +1 312-479-9009 Illinois U.S.A.
  • 3124799010 | +1 312-479-9010 Illinois U.S.A.
  • 3124799011 | +1 312-479-9011 Illinois U.S.A.
  • 3124799012 | +1 312-479-9012 Illinois U.S.A.
  • 3124799013 | +1 312-479-9013 Illinois U.S.A.
  • 3124799014 | +1 312-479-9014 Illinois U.S.A.
  • 3124799015 | +1 312-479-9015 Illinois U.S.A.
  • 3124799016 | +1 312-479-9016 Illinois U.S.A.
  • 3124799017 | +1 312-479-9017 Illinois U.S.A.
  • 3124799018 | +1 312-479-9018 Illinois U.S.A.
  • 3124799019 | +1 312-479-9019 Illinois U.S.A.
  • 3124799020 | +1 312-479-9020 Illinois U.S.A.
  • 3124799021 | +1 312-479-9021 Illinois U.S.A.
  • 3124799022 | +1 312-479-9022 Illinois U.S.A.
  • 3124799023 | +1 312-479-9023 Illinois U.S.A.
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  • 3124799025 | +1 312-479-9025 Illinois U.S.A.
  • 3124799026 | +1 312-479-9026 Illinois U.S.A.
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  • 3124799028 | +1 312-479-9028 Illinois U.S.A.
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  • 3124799030 | +1 312-479-9030 Illinois U.S.A.
  • 3124799031 | +1 312-479-9031 Illinois U.S.A.
  • 3124799032 | +1 312-479-9032 Illinois U.S.A.
  • 3124799033 | +1 312-479-9033 Illinois U.S.A.
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  • 3124799035 | +1 312-479-9035 Illinois U.S.A.
  • 3124799036 | +1 312-479-9036 Illinois U.S.A.
  • 3124799037 | +1 312-479-9037 Illinois U.S.A.
  • 3124799038 | +1 312-479-9038 Illinois U.S.A.
  • 3124799039 | +1 312-479-9039 Illinois U.S.A.
  • 3124799040 | +1 312-479-9040 Illinois U.S.A.
  • 3124799041 | +1 312-479-9041 Illinois U.S.A.
  • 3124799042 | +1 312-479-9042 Illinois U.S.A.
  • 3124799043 | +1 312-479-9043 Illinois U.S.A.
  • 3124799044 | +1 312-479-9044 Illinois U.S.A.
  • 3124799045 | +1 312-479-9045 Illinois U.S.A.
  • 3124799046 | +1 312-479-9046 Illinois U.S.A.
  • 3124799047 | +1 312-479-9047 Illinois U.S.A.
  • 3124799048 | +1 312-479-9048 Illinois U.S.A.
  • 3124799049 | +1 312-479-9049 Illinois U.S.A.
  • 3124799050 | +1 312-479-9050 Illinois U.S.A.
  • 3124799051 | +1 312-479-9051 Illinois U.S.A.
  • 3124799052 | +1 312-479-9052 Illinois U.S.A.
  • 3124799053 | +1 312-479-9053 Illinois U.S.A.
  • 3124799054 | +1 312-479-9054 Illinois U.S.A.
  • 3124799055 | +1 312-479-9055 Illinois U.S.A.
  • 3124799056 | +1 312-479-9056 Illinois U.S.A.
  • 3124799057 | +1 312-479-9057 Illinois U.S.A.
  • 3124799058 | +1 312-479-9058 Illinois U.S.A.
  • 3124799059 | +1 312-479-9059 Illinois U.S.A.
  • 3124799060 | +1 312-479-9060 Illinois U.S.A.
  • 3124799061 | +1 312-479-9061 Illinois U.S.A.
  • 3124799062 | +1 312-479-9062 Illinois U.S.A.
  • 3124799063 | +1 312-479-9063 Illinois U.S.A.
  • 3124799064 | +1 312-479-9064 Illinois U.S.A.
  • 3124799065 | +1 312-479-9065 Illinois U.S.A.
  • 3124799066 | +1 312-479-9066 Illinois U.S.A.
  • 3124799067 | +1 312-479-9067 Illinois U.S.A.
  • 3124799068 | +1 312-479-9068 Illinois U.S.A.
  • 3124799069 | +1 312-479-9069 Illinois U.S.A.
  • 3124799070 | +1 312-479-9070 Illinois U.S.A.
  • 3124799071 | +1 312-479-9071 Illinois U.S.A.
  • 3124799072 | +1 312-479-9072 Illinois U.S.A.
  • 3124799073 | +1 312-479-9073 Illinois U.S.A.
  • 3124799074 | +1 312-479-9074 Illinois U.S.A.
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  • 3124799076 | +1 312-479-9076 Illinois U.S.A.
  • 3124799077 | +1 312-479-9077 Illinois U.S.A.
  • 3124799078 | +1 312-479-9078 Illinois U.S.A.
  • 3124799079 | +1 312-479-9079 Illinois U.S.A.
  • 3124799080 | +1 312-479-9080 Illinois U.S.A.
  • 3124799081 | +1 312-479-9081 Illinois U.S.A.
  • 3124799082 | +1 312-479-9082 Illinois U.S.A.
  • 3124799083 | +1 312-479-9083 Illinois U.S.A.
  • 3124799084 | +1 312-479-9084 Illinois U.S.A.
  • 3124799085 | +1 312-479-9085 Illinois U.S.A.
  • 3124799086 | +1 312-479-9086 Illinois U.S.A.
  • 3124799087 | +1 312-479-9087 Illinois U.S.A.
  • 3124799088 | +1 312-479-9088 Illinois U.S.A.
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  • 3124799090 | +1 312-479-9090 Illinois U.S.A.
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  • 3124799095 | +1 312-479-9095 Illinois U.S.A.
  • 3124799096 | +1 312-479-9096 Illinois U.S.A.
  • 3124799097 | +1 312-479-9097 Illinois U.S.A.
  • 3124799098 | +1 312-479-9098 Illinois U.S.A.
  • 3124799099 | +1 312-479-9099 Illinois U.S.A.