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).

  • 3123066000 | +1 312-306-6000 Illinois U.S.A.
  • 3123066001 | +1 312-306-6001 Illinois U.S.A.
  • 3123066002 | +1 312-306-6002 Illinois U.S.A.
  • 3123066003 | +1 312-306-6003 Illinois U.S.A.
  • 3123066004 | +1 312-306-6004 Illinois U.S.A.
  • 3123066005 | +1 312-306-6005 Illinois U.S.A.
  • 3123066006 | +1 312-306-6006 Illinois U.S.A.
  • 3123066007 | +1 312-306-6007 Illinois U.S.A.
  • 3123066008 | +1 312-306-6008 Illinois U.S.A.
  • 3123066009 | +1 312-306-6009 Illinois U.S.A.
  • 3123066010 | +1 312-306-6010 Illinois U.S.A.
  • 3123066011 | +1 312-306-6011 Illinois U.S.A.
  • 3123066012 | +1 312-306-6012 Illinois U.S.A.
  • 3123066013 | +1 312-306-6013 Illinois U.S.A.
  • 3123066014 | +1 312-306-6014 Illinois U.S.A.
  • 3123066015 | +1 312-306-6015 Illinois U.S.A.
  • 3123066016 | +1 312-306-6016 Illinois U.S.A.
  • 3123066017 | +1 312-306-6017 Illinois U.S.A.
  • 3123066018 | +1 312-306-6018 Illinois U.S.A.
  • 3123066019 | +1 312-306-6019 Illinois U.S.A.
  • 3123066020 | +1 312-306-6020 Illinois U.S.A.
  • 3123066021 | +1 312-306-6021 Illinois U.S.A.
  • 3123066022 | +1 312-306-6022 Illinois U.S.A.
  • 3123066023 | +1 312-306-6023 Illinois U.S.A.
  • 3123066024 | +1 312-306-6024 Illinois U.S.A.
  • 3123066025 | +1 312-306-6025 Illinois U.S.A.
  • 3123066026 | +1 312-306-6026 Illinois U.S.A.
  • 3123066027 | +1 312-306-6027 Illinois U.S.A.
  • 3123066028 | +1 312-306-6028 Illinois U.S.A.
  • 3123066029 | +1 312-306-6029 Illinois U.S.A.
  • 3123066030 | +1 312-306-6030 Illinois U.S.A.
  • 3123066031 | +1 312-306-6031 Illinois U.S.A.
  • 3123066032 | +1 312-306-6032 Illinois U.S.A.
  • 3123066033 | +1 312-306-6033 Illinois U.S.A.
  • 3123066034 | +1 312-306-6034 Illinois U.S.A.
  • 3123066035 | +1 312-306-6035 Illinois U.S.A.
  • 3123066036 | +1 312-306-6036 Illinois U.S.A.
  • 3123066037 | +1 312-306-6037 Illinois U.S.A.
  • 3123066038 | +1 312-306-6038 Illinois U.S.A.
  • 3123066039 | +1 312-306-6039 Illinois U.S.A.
  • 3123066040 | +1 312-306-6040 Illinois U.S.A.
  • 3123066041 | +1 312-306-6041 Illinois U.S.A.
  • 3123066042 | +1 312-306-6042 Illinois U.S.A.
  • 3123066043 | +1 312-306-6043 Illinois U.S.A.
  • 3123066044 | +1 312-306-6044 Illinois U.S.A.
  • 3123066045 | +1 312-306-6045 Illinois U.S.A.
  • 3123066046 | +1 312-306-6046 Illinois U.S.A.
  • 3123066047 | +1 312-306-6047 Illinois U.S.A.
  • 3123066048 | +1 312-306-6048 Illinois U.S.A.
  • 3123066049 | +1 312-306-6049 Illinois U.S.A.
  • 3123066050 | +1 312-306-6050 Illinois U.S.A.
  • 3123066051 | +1 312-306-6051 Illinois U.S.A.
  • 3123066052 | +1 312-306-6052 Illinois U.S.A.
  • 3123066053 | +1 312-306-6053 Illinois U.S.A.
  • 3123066054 | +1 312-306-6054 Illinois U.S.A.
  • 3123066055 | +1 312-306-6055 Illinois U.S.A.
  • 3123066056 | +1 312-306-6056 Illinois U.S.A.
  • 3123066057 | +1 312-306-6057 Illinois U.S.A.
  • 3123066058 | +1 312-306-6058 Illinois U.S.A.
  • 3123066059 | +1 312-306-6059 Illinois U.S.A.
  • 3123066060 | +1 312-306-6060 Illinois U.S.A.
  • 3123066061 | +1 312-306-6061 Illinois U.S.A.
  • 3123066062 | +1 312-306-6062 Illinois U.S.A.
  • 3123066063 | +1 312-306-6063 Illinois U.S.A.
  • 3123066064 | +1 312-306-6064 Illinois U.S.A.
  • 3123066065 | +1 312-306-6065 Illinois U.S.A.
  • 3123066066 | +1 312-306-6066 Illinois U.S.A.
  • 3123066067 | +1 312-306-6067 Illinois U.S.A.
  • 3123066068 | +1 312-306-6068 Illinois U.S.A.
  • 3123066069 | +1 312-306-6069 Illinois U.S.A.
  • 3123066070 | +1 312-306-6070 Illinois U.S.A.
  • 3123066071 | +1 312-306-6071 Illinois U.S.A.
  • 3123066072 | +1 312-306-6072 Illinois U.S.A.
  • 3123066073 | +1 312-306-6073 Illinois U.S.A.
  • 3123066074 | +1 312-306-6074 Illinois U.S.A.
  • 3123066075 | +1 312-306-6075 Illinois U.S.A.
  • 3123066076 | +1 312-306-6076 Illinois U.S.A.
  • 3123066077 | +1 312-306-6077 Illinois U.S.A.
  • 3123066078 | +1 312-306-6078 Illinois U.S.A.
  • 3123066079 | +1 312-306-6079 Illinois U.S.A.
  • 3123066080 | +1 312-306-6080 Illinois U.S.A.
  • 3123066081 | +1 312-306-6081 Illinois U.S.A.
  • 3123066082 | +1 312-306-6082 Illinois U.S.A.
  • 3123066083 | +1 312-306-6083 Illinois U.S.A.
  • 3123066084 | +1 312-306-6084 Illinois U.S.A.
  • 3123066085 | +1 312-306-6085 Illinois U.S.A.
  • 3123066086 | +1 312-306-6086 Illinois U.S.A.
  • 3123066087 | +1 312-306-6087 Illinois U.S.A.
  • 3123066088 | +1 312-306-6088 Illinois U.S.A.
  • 3123066089 | +1 312-306-6089 Illinois U.S.A.
  • 3123066090 | +1 312-306-6090 Illinois U.S.A.
  • 3123066091 | +1 312-306-6091 Illinois U.S.A.
  • 3123066092 | +1 312-306-6092 Illinois U.S.A.
  • 3123066093 | +1 312-306-6093 Illinois U.S.A.
  • 3123066094 | +1 312-306-6094 Illinois U.S.A.
  • 3123066095 | +1 312-306-6095 Illinois U.S.A.
  • 3123066096 | +1 312-306-6096 Illinois U.S.A.
  • 3123066097 | +1 312-306-6097 Illinois U.S.A.
  • 3123066098 | +1 312-306-6098 Illinois U.S.A.
  • 3123066099 | +1 312-306-6099 Illinois U.S.A.