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).

  • 3129435000 | +1 312-943-5000 Illinois U.S.A.
  • 3129435001 | +1 312-943-5001 Illinois U.S.A.
  • 3129435002 | +1 312-943-5002 Illinois U.S.A.
  • 3129435003 | +1 312-943-5003 Illinois U.S.A.
  • 3129435004 | +1 312-943-5004 Illinois U.S.A.
  • 3129435005 | +1 312-943-5005 Illinois U.S.A.
  • 3129435006 | +1 312-943-5006 Illinois U.S.A.
  • 3129435007 | +1 312-943-5007 Illinois U.S.A.
  • 3129435008 | +1 312-943-5008 Illinois U.S.A.
  • 3129435009 | +1 312-943-5009 Illinois U.S.A.
  • 3129435010 | +1 312-943-5010 Illinois U.S.A.
  • 3129435011 | +1 312-943-5011 Illinois U.S.A.
  • 3129435012 | +1 312-943-5012 Illinois U.S.A.
  • 3129435013 | +1 312-943-5013 Illinois U.S.A.
  • 3129435014 | +1 312-943-5014 Illinois U.S.A.
  • 3129435015 | +1 312-943-5015 Illinois U.S.A.
  • 3129435016 | +1 312-943-5016 Illinois U.S.A.
  • 3129435017 | +1 312-943-5017 Illinois U.S.A.
  • 3129435018 | +1 312-943-5018 Illinois U.S.A.
  • 3129435019 | +1 312-943-5019 Illinois U.S.A.
  • 3129435020 | +1 312-943-5020 Illinois U.S.A.
  • 3129435021 | +1 312-943-5021 Illinois U.S.A.
  • 3129435022 | +1 312-943-5022 Illinois U.S.A.
  • 3129435023 | +1 312-943-5023 Illinois U.S.A.
  • 3129435024 | +1 312-943-5024 Illinois U.S.A.
  • 3129435025 | +1 312-943-5025 Illinois U.S.A.
  • 3129435026 | +1 312-943-5026 Illinois U.S.A.
  • 3129435027 | +1 312-943-5027 Illinois U.S.A.
  • 3129435028 | +1 312-943-5028 Illinois U.S.A.
  • 3129435029 | +1 312-943-5029 Illinois U.S.A.
  • 3129435030 | +1 312-943-5030 Illinois U.S.A.
  • 3129435031 | +1 312-943-5031 Illinois U.S.A.
  • 3129435032 | +1 312-943-5032 Illinois U.S.A.
  • 3129435033 | +1 312-943-5033 Illinois U.S.A.
  • 3129435034 | +1 312-943-5034 Illinois U.S.A.
  • 3129435035 | +1 312-943-5035 Illinois U.S.A.
  • 3129435036 | +1 312-943-5036 Illinois U.S.A.
  • 3129435037 | +1 312-943-5037 Illinois U.S.A.
  • 3129435038 | +1 312-943-5038 Illinois U.S.A.
  • 3129435039 | +1 312-943-5039 Illinois U.S.A.
  • 3129435040 | +1 312-943-5040 Illinois U.S.A.
  • 3129435041 | +1 312-943-5041 Illinois U.S.A.
  • 3129435042 | +1 312-943-5042 Illinois U.S.A.
  • 3129435043 | +1 312-943-5043 Illinois U.S.A.
  • 3129435044 | +1 312-943-5044 Illinois U.S.A.
  • 3129435045 | +1 312-943-5045 Illinois U.S.A.
  • 3129435046 | +1 312-943-5046 Illinois U.S.A.
  • 3129435047 | +1 312-943-5047 Illinois U.S.A.
  • 3129435048 | +1 312-943-5048 Illinois U.S.A.
  • 3129435049 | +1 312-943-5049 Illinois U.S.A.
  • 3129435050 | +1 312-943-5050 Illinois U.S.A.
  • 3129435051 | +1 312-943-5051 Illinois U.S.A.
  • 3129435052 | +1 312-943-5052 Illinois U.S.A.
  • 3129435053 | +1 312-943-5053 Illinois U.S.A.
  • 3129435054 | +1 312-943-5054 Illinois U.S.A.
  • 3129435055 | +1 312-943-5055 Illinois U.S.A.
  • 3129435056 | +1 312-943-5056 Illinois U.S.A.
  • 3129435057 | +1 312-943-5057 Illinois U.S.A.
  • 3129435058 | +1 312-943-5058 Illinois U.S.A.
  • 3129435059 | +1 312-943-5059 Illinois U.S.A.
  • 3129435060 | +1 312-943-5060 Illinois U.S.A.
  • 3129435061 | +1 312-943-5061 Illinois U.S.A.
  • 3129435062 | +1 312-943-5062 Illinois U.S.A.
  • 3129435063 | +1 312-943-5063 Illinois U.S.A.
  • 3129435064 | +1 312-943-5064 Illinois U.S.A.
  • 3129435065 | +1 312-943-5065 Illinois U.S.A.
  • 3129435066 | +1 312-943-5066 Illinois U.S.A.
  • 3129435067 | +1 312-943-5067 Illinois U.S.A.
  • 3129435068 | +1 312-943-5068 Illinois U.S.A.
  • 3129435069 | +1 312-943-5069 Illinois U.S.A.
  • 3129435070 | +1 312-943-5070 Illinois U.S.A.
  • 3129435071 | +1 312-943-5071 Illinois U.S.A.
  • 3129435072 | +1 312-943-5072 Illinois U.S.A.
  • 3129435073 | +1 312-943-5073 Illinois U.S.A.
  • 3129435074 | +1 312-943-5074 Illinois U.S.A.
  • 3129435075 | +1 312-943-5075 Illinois U.S.A.
  • 3129435076 | +1 312-943-5076 Illinois U.S.A.
  • 3129435077 | +1 312-943-5077 Illinois U.S.A.
  • 3129435078 | +1 312-943-5078 Illinois U.S.A.
  • 3129435079 | +1 312-943-5079 Illinois U.S.A.
  • 3129435080 | +1 312-943-5080 Illinois U.S.A.
  • 3129435081 | +1 312-943-5081 Illinois U.S.A.
  • 3129435082 | +1 312-943-5082 Illinois U.S.A.
  • 3129435083 | +1 312-943-5083 Illinois U.S.A.
  • 3129435084 | +1 312-943-5084 Illinois U.S.A.
  • 3129435085 | +1 312-943-5085 Illinois U.S.A.
  • 3129435086 | +1 312-943-5086 Illinois U.S.A.
  • 3129435087 | +1 312-943-5087 Illinois U.S.A.
  • 3129435088 | +1 312-943-5088 Illinois U.S.A.
  • 3129435089 | +1 312-943-5089 Illinois U.S.A.
  • 3129435090 | +1 312-943-5090 Illinois U.S.A.
  • 3129435091 | +1 312-943-5091 Illinois U.S.A.
  • 3129435092 | +1 312-943-5092 Illinois U.S.A.
  • 3129435093 | +1 312-943-5093 Illinois U.S.A.
  • 3129435094 | +1 312-943-5094 Illinois U.S.A.
  • 3129435095 | +1 312-943-5095 Illinois U.S.A.
  • 3129435096 | +1 312-943-5096 Illinois U.S.A.
  • 3129435097 | +1 312-943-5097 Illinois U.S.A.
  • 3129435098 | +1 312-943-5098 Illinois U.S.A.
  • 3129435099 | +1 312-943-5099 Illinois U.S.A.