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).

  • 3128507000 | +1 312-850-7000 Illinois U.S.A.
  • 3128507001 | +1 312-850-7001 Illinois U.S.A.
  • 3128507002 | +1 312-850-7002 Illinois U.S.A.
  • 3128507003 | +1 312-850-7003 Illinois U.S.A.
  • 3128507004 | +1 312-850-7004 Illinois U.S.A.
  • 3128507005 | +1 312-850-7005 Illinois U.S.A.
  • 3128507006 | +1 312-850-7006 Illinois U.S.A.
  • 3128507007 | +1 312-850-7007 Illinois U.S.A.
  • 3128507008 | +1 312-850-7008 Illinois U.S.A.
  • 3128507009 | +1 312-850-7009 Illinois U.S.A.
  • 3128507010 | +1 312-850-7010 Illinois U.S.A.
  • 3128507011 | +1 312-850-7011 Illinois U.S.A.
  • 3128507012 | +1 312-850-7012 Illinois U.S.A.
  • 3128507013 | +1 312-850-7013 Illinois U.S.A.
  • 3128507014 | +1 312-850-7014 Illinois U.S.A.
  • 3128507015 | +1 312-850-7015 Illinois U.S.A.
  • 3128507016 | +1 312-850-7016 Illinois U.S.A.
  • 3128507017 | +1 312-850-7017 Illinois U.S.A.
  • 3128507018 | +1 312-850-7018 Illinois U.S.A.
  • 3128507019 | +1 312-850-7019 Illinois U.S.A.
  • 3128507020 | +1 312-850-7020 Illinois U.S.A.
  • 3128507021 | +1 312-850-7021 Illinois U.S.A.
  • 3128507022 | +1 312-850-7022 Illinois U.S.A.
  • 3128507023 | +1 312-850-7023 Illinois U.S.A.
  • 3128507024 | +1 312-850-7024 Illinois U.S.A.
  • 3128507025 | +1 312-850-7025 Illinois U.S.A.
  • 3128507026 | +1 312-850-7026 Illinois U.S.A.
  • 3128507027 | +1 312-850-7027 Illinois U.S.A.
  • 3128507028 | +1 312-850-7028 Illinois U.S.A.
  • 3128507029 | +1 312-850-7029 Illinois U.S.A.
  • 3128507030 | +1 312-850-7030 Illinois U.S.A.
  • 3128507031 | +1 312-850-7031 Illinois U.S.A.
  • 3128507032 | +1 312-850-7032 Illinois U.S.A.
  • 3128507033 | +1 312-850-7033 Illinois U.S.A.
  • 3128507034 | +1 312-850-7034 Illinois U.S.A.
  • 3128507035 | +1 312-850-7035 Illinois U.S.A.
  • 3128507036 | +1 312-850-7036 Illinois U.S.A.
  • 3128507037 | +1 312-850-7037 Illinois U.S.A.
  • 3128507038 | +1 312-850-7038 Illinois U.S.A.
  • 3128507039 | +1 312-850-7039 Illinois U.S.A.
  • 3128507040 | +1 312-850-7040 Illinois U.S.A.
  • 3128507041 | +1 312-850-7041 Illinois U.S.A.
  • 3128507042 | +1 312-850-7042 Illinois U.S.A.
  • 3128507043 | +1 312-850-7043 Illinois U.S.A.
  • 3128507044 | +1 312-850-7044 Illinois U.S.A.
  • 3128507045 | +1 312-850-7045 Illinois U.S.A.
  • 3128507046 | +1 312-850-7046 Illinois U.S.A.
  • 3128507047 | +1 312-850-7047 Illinois U.S.A.
  • 3128507048 | +1 312-850-7048 Illinois U.S.A.
  • 3128507049 | +1 312-850-7049 Illinois U.S.A.
  • 3128507050 | +1 312-850-7050 Illinois U.S.A.
  • 3128507051 | +1 312-850-7051 Illinois U.S.A.
  • 3128507052 | +1 312-850-7052 Illinois U.S.A.
  • 3128507053 | +1 312-850-7053 Illinois U.S.A.
  • 3128507054 | +1 312-850-7054 Illinois U.S.A.
  • 3128507055 | +1 312-850-7055 Illinois U.S.A.
  • 3128507056 | +1 312-850-7056 Illinois U.S.A.
  • 3128507057 | +1 312-850-7057 Illinois U.S.A.
  • 3128507058 | +1 312-850-7058 Illinois U.S.A.
  • 3128507059 | +1 312-850-7059 Illinois U.S.A.
  • 3128507060 | +1 312-850-7060 Illinois U.S.A.
  • 3128507061 | +1 312-850-7061 Illinois U.S.A.
  • 3128507062 | +1 312-850-7062 Illinois U.S.A.
  • 3128507063 | +1 312-850-7063 Illinois U.S.A.
  • 3128507064 | +1 312-850-7064 Illinois U.S.A.
  • 3128507065 | +1 312-850-7065 Illinois U.S.A.
  • 3128507066 | +1 312-850-7066 Illinois U.S.A.
  • 3128507067 | +1 312-850-7067 Illinois U.S.A.
  • 3128507068 | +1 312-850-7068 Illinois U.S.A.
  • 3128507069 | +1 312-850-7069 Illinois U.S.A.
  • 3128507070 | +1 312-850-7070 Illinois U.S.A.
  • 3128507071 | +1 312-850-7071 Illinois U.S.A.
  • 3128507072 | +1 312-850-7072 Illinois U.S.A.
  • 3128507073 | +1 312-850-7073 Illinois U.S.A.
  • 3128507074 | +1 312-850-7074 Illinois U.S.A.
  • 3128507075 | +1 312-850-7075 Illinois U.S.A.
  • 3128507076 | +1 312-850-7076 Illinois U.S.A.
  • 3128507077 | +1 312-850-7077 Illinois U.S.A.
  • 3128507078 | +1 312-850-7078 Illinois U.S.A.
  • 3128507079 | +1 312-850-7079 Illinois U.S.A.
  • 3128507080 | +1 312-850-7080 Illinois U.S.A.
  • 3128507081 | +1 312-850-7081 Illinois U.S.A.
  • 3128507082 | +1 312-850-7082 Illinois U.S.A.
  • 3128507083 | +1 312-850-7083 Illinois U.S.A.
  • 3128507084 | +1 312-850-7084 Illinois U.S.A.
  • 3128507085 | +1 312-850-7085 Illinois U.S.A.
  • 3128507086 | +1 312-850-7086 Illinois U.S.A.
  • 3128507087 | +1 312-850-7087 Illinois U.S.A.
  • 3128507088 | +1 312-850-7088 Illinois U.S.A.
  • 3128507089 | +1 312-850-7089 Illinois U.S.A.
  • 3128507090 | +1 312-850-7090 Illinois U.S.A.
  • 3128507091 | +1 312-850-7091 Illinois U.S.A.
  • 3128507092 | +1 312-850-7092 Illinois U.S.A.
  • 3128507093 | +1 312-850-7093 Illinois U.S.A.
  • 3128507094 | +1 312-850-7094 Illinois U.S.A.
  • 3128507095 | +1 312-850-7095 Illinois U.S.A.
  • 3128507096 | +1 312-850-7096 Illinois U.S.A.
  • 3128507097 | +1 312-850-7097 Illinois U.S.A.
  • 3128507098 | +1 312-850-7098 Illinois U.S.A.
  • 3128507099 | +1 312-850-7099 Illinois U.S.A.