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).

  • 3125666000 | +1 312-566-6000 Illinois U.S.A.
  • 3125666001 | +1 312-566-6001 Illinois U.S.A.
  • 3125666002 | +1 312-566-6002 Illinois U.S.A.
  • 3125666003 | +1 312-566-6003 Illinois U.S.A.
  • 3125666004 | +1 312-566-6004 Illinois U.S.A.
  • 3125666005 | +1 312-566-6005 Illinois U.S.A.
  • 3125666006 | +1 312-566-6006 Illinois U.S.A.
  • 3125666007 | +1 312-566-6007 Illinois U.S.A.
  • 3125666008 | +1 312-566-6008 Illinois U.S.A.
  • 3125666009 | +1 312-566-6009 Illinois U.S.A.
  • 3125666010 | +1 312-566-6010 Illinois U.S.A.
  • 3125666011 | +1 312-566-6011 Illinois U.S.A.
  • 3125666012 | +1 312-566-6012 Illinois U.S.A.
  • 3125666013 | +1 312-566-6013 Illinois U.S.A.
  • 3125666014 | +1 312-566-6014 Illinois U.S.A.
  • 3125666015 | +1 312-566-6015 Illinois U.S.A.
  • 3125666016 | +1 312-566-6016 Illinois U.S.A.
  • 3125666017 | +1 312-566-6017 Illinois U.S.A.
  • 3125666018 | +1 312-566-6018 Illinois U.S.A.
  • 3125666019 | +1 312-566-6019 Illinois U.S.A.
  • 3125666020 | +1 312-566-6020 Illinois U.S.A.
  • 3125666021 | +1 312-566-6021 Illinois U.S.A.
  • 3125666022 | +1 312-566-6022 Illinois U.S.A.
  • 3125666023 | +1 312-566-6023 Illinois U.S.A.
  • 3125666024 | +1 312-566-6024 Illinois U.S.A.
  • 3125666025 | +1 312-566-6025 Illinois U.S.A.
  • 3125666026 | +1 312-566-6026 Illinois U.S.A.
  • 3125666027 | +1 312-566-6027 Illinois U.S.A.
  • 3125666028 | +1 312-566-6028 Illinois U.S.A.
  • 3125666029 | +1 312-566-6029 Illinois U.S.A.
  • 3125666030 | +1 312-566-6030 Illinois U.S.A.
  • 3125666031 | +1 312-566-6031 Illinois U.S.A.
  • 3125666032 | +1 312-566-6032 Illinois U.S.A.
  • 3125666033 | +1 312-566-6033 Illinois U.S.A.
  • 3125666034 | +1 312-566-6034 Illinois U.S.A.
  • 3125666035 | +1 312-566-6035 Illinois U.S.A.
  • 3125666036 | +1 312-566-6036 Illinois U.S.A.
  • 3125666037 | +1 312-566-6037 Illinois U.S.A.
  • 3125666038 | +1 312-566-6038 Illinois U.S.A.
  • 3125666039 | +1 312-566-6039 Illinois U.S.A.
  • 3125666040 | +1 312-566-6040 Illinois U.S.A.
  • 3125666041 | +1 312-566-6041 Illinois U.S.A.
  • 3125666042 | +1 312-566-6042 Illinois U.S.A.
  • 3125666043 | +1 312-566-6043 Illinois U.S.A.
  • 3125666044 | +1 312-566-6044 Illinois U.S.A.
  • 3125666045 | +1 312-566-6045 Illinois U.S.A.
  • 3125666046 | +1 312-566-6046 Illinois U.S.A.
  • 3125666047 | +1 312-566-6047 Illinois U.S.A.
  • 3125666048 | +1 312-566-6048 Illinois U.S.A.
  • 3125666049 | +1 312-566-6049 Illinois U.S.A.
  • 3125666050 | +1 312-566-6050 Illinois U.S.A.
  • 3125666051 | +1 312-566-6051 Illinois U.S.A.
  • 3125666052 | +1 312-566-6052 Illinois U.S.A.
  • 3125666053 | +1 312-566-6053 Illinois U.S.A.
  • 3125666054 | +1 312-566-6054 Illinois U.S.A.
  • 3125666055 | +1 312-566-6055 Illinois U.S.A.
  • 3125666056 | +1 312-566-6056 Illinois U.S.A.
  • 3125666057 | +1 312-566-6057 Illinois U.S.A.
  • 3125666058 | +1 312-566-6058 Illinois U.S.A.
  • 3125666059 | +1 312-566-6059 Illinois U.S.A.
  • 3125666060 | +1 312-566-6060 Illinois U.S.A.
  • 3125666061 | +1 312-566-6061 Illinois U.S.A.
  • 3125666062 | +1 312-566-6062 Illinois U.S.A.
  • 3125666063 | +1 312-566-6063 Illinois U.S.A.
  • 3125666064 | +1 312-566-6064 Illinois U.S.A.
  • 3125666065 | +1 312-566-6065 Illinois U.S.A.
  • 3125666066 | +1 312-566-6066 Illinois U.S.A.
  • 3125666067 | +1 312-566-6067 Illinois U.S.A.
  • 3125666068 | +1 312-566-6068 Illinois U.S.A.
  • 3125666069 | +1 312-566-6069 Illinois U.S.A.
  • 3125666070 | +1 312-566-6070 Illinois U.S.A.
  • 3125666071 | +1 312-566-6071 Illinois U.S.A.
  • 3125666072 | +1 312-566-6072 Illinois U.S.A.
  • 3125666073 | +1 312-566-6073 Illinois U.S.A.
  • 3125666074 | +1 312-566-6074 Illinois U.S.A.
  • 3125666075 | +1 312-566-6075 Illinois U.S.A.
  • 3125666076 | +1 312-566-6076 Illinois U.S.A.
  • 3125666077 | +1 312-566-6077 Illinois U.S.A.
  • 3125666078 | +1 312-566-6078 Illinois U.S.A.
  • 3125666079 | +1 312-566-6079 Illinois U.S.A.
  • 3125666080 | +1 312-566-6080 Illinois U.S.A.
  • 3125666081 | +1 312-566-6081 Illinois U.S.A.
  • 3125666082 | +1 312-566-6082 Illinois U.S.A.
  • 3125666083 | +1 312-566-6083 Illinois U.S.A.
  • 3125666084 | +1 312-566-6084 Illinois U.S.A.
  • 3125666085 | +1 312-566-6085 Illinois U.S.A.
  • 3125666086 | +1 312-566-6086 Illinois U.S.A.
  • 3125666087 | +1 312-566-6087 Illinois U.S.A.
  • 3125666088 | +1 312-566-6088 Illinois U.S.A.
  • 3125666089 | +1 312-566-6089 Illinois U.S.A.
  • 3125666090 | +1 312-566-6090 Illinois U.S.A.
  • 3125666091 | +1 312-566-6091 Illinois U.S.A.
  • 3125666092 | +1 312-566-6092 Illinois U.S.A.
  • 3125666093 | +1 312-566-6093 Illinois U.S.A.
  • 3125666094 | +1 312-566-6094 Illinois U.S.A.
  • 3125666095 | +1 312-566-6095 Illinois U.S.A.
  • 3125666096 | +1 312-566-6096 Illinois U.S.A.
  • 3125666097 | +1 312-566-6097 Illinois U.S.A.
  • 3125666098 | +1 312-566-6098 Illinois U.S.A.
  • 3125666099 | +1 312-566-6099 Illinois U.S.A.