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).

  • 3129774000 | +1 312-977-4000 Illinois U.S.A.
  • 3129774001 | +1 312-977-4001 Illinois U.S.A.
  • 3129774002 | +1 312-977-4002 Illinois U.S.A.
  • 3129774003 | +1 312-977-4003 Illinois U.S.A.
  • 3129774004 | +1 312-977-4004 Illinois U.S.A.
  • 3129774005 | +1 312-977-4005 Illinois U.S.A.
  • 3129774006 | +1 312-977-4006 Illinois U.S.A.
  • 3129774007 | +1 312-977-4007 Illinois U.S.A.
  • 3129774008 | +1 312-977-4008 Illinois U.S.A.
  • 3129774009 | +1 312-977-4009 Illinois U.S.A.
  • 3129774010 | +1 312-977-4010 Illinois U.S.A.
  • 3129774011 | +1 312-977-4011 Illinois U.S.A.
  • 3129774012 | +1 312-977-4012 Illinois U.S.A.
  • 3129774013 | +1 312-977-4013 Illinois U.S.A.
  • 3129774014 | +1 312-977-4014 Illinois U.S.A.
  • 3129774015 | +1 312-977-4015 Illinois U.S.A.
  • 3129774016 | +1 312-977-4016 Illinois U.S.A.
  • 3129774017 | +1 312-977-4017 Illinois U.S.A.
  • 3129774018 | +1 312-977-4018 Illinois U.S.A.
  • 3129774019 | +1 312-977-4019 Illinois U.S.A.
  • 3129774020 | +1 312-977-4020 Illinois U.S.A.
  • 3129774021 | +1 312-977-4021 Illinois U.S.A.
  • 3129774022 | +1 312-977-4022 Illinois U.S.A.
  • 3129774023 | +1 312-977-4023 Illinois U.S.A.
  • 3129774024 | +1 312-977-4024 Illinois U.S.A.
  • 3129774025 | +1 312-977-4025 Illinois U.S.A.
  • 3129774026 | +1 312-977-4026 Illinois U.S.A.
  • 3129774027 | +1 312-977-4027 Illinois U.S.A.
  • 3129774028 | +1 312-977-4028 Illinois U.S.A.
  • 3129774029 | +1 312-977-4029 Illinois U.S.A.
  • 3129774030 | +1 312-977-4030 Illinois U.S.A.
  • 3129774031 | +1 312-977-4031 Illinois U.S.A.
  • 3129774032 | +1 312-977-4032 Illinois U.S.A.
  • 3129774033 | +1 312-977-4033 Illinois U.S.A.
  • 3129774034 | +1 312-977-4034 Illinois U.S.A.
  • 3129774035 | +1 312-977-4035 Illinois U.S.A.
  • 3129774036 | +1 312-977-4036 Illinois U.S.A.
  • 3129774037 | +1 312-977-4037 Illinois U.S.A.
  • 3129774038 | +1 312-977-4038 Illinois U.S.A.
  • 3129774039 | +1 312-977-4039 Illinois U.S.A.
  • 3129774040 | +1 312-977-4040 Illinois U.S.A.
  • 3129774041 | +1 312-977-4041 Illinois U.S.A.
  • 3129774042 | +1 312-977-4042 Illinois U.S.A.
  • 3129774043 | +1 312-977-4043 Illinois U.S.A.
  • 3129774044 | +1 312-977-4044 Illinois U.S.A.
  • 3129774045 | +1 312-977-4045 Illinois U.S.A.
  • 3129774046 | +1 312-977-4046 Illinois U.S.A.
  • 3129774047 | +1 312-977-4047 Illinois U.S.A.
  • 3129774048 | +1 312-977-4048 Illinois U.S.A.
  • 3129774049 | +1 312-977-4049 Illinois U.S.A.
  • 3129774050 | +1 312-977-4050 Illinois U.S.A.
  • 3129774051 | +1 312-977-4051 Illinois U.S.A.
  • 3129774052 | +1 312-977-4052 Illinois U.S.A.
  • 3129774053 | +1 312-977-4053 Illinois U.S.A.
  • 3129774054 | +1 312-977-4054 Illinois U.S.A.
  • 3129774055 | +1 312-977-4055 Illinois U.S.A.
  • 3129774056 | +1 312-977-4056 Illinois U.S.A.
  • 3129774057 | +1 312-977-4057 Illinois U.S.A.
  • 3129774058 | +1 312-977-4058 Illinois U.S.A.
  • 3129774059 | +1 312-977-4059 Illinois U.S.A.
  • 3129774060 | +1 312-977-4060 Illinois U.S.A.
  • 3129774061 | +1 312-977-4061 Illinois U.S.A.
  • 3129774062 | +1 312-977-4062 Illinois U.S.A.
  • 3129774063 | +1 312-977-4063 Illinois U.S.A.
  • 3129774064 | +1 312-977-4064 Illinois U.S.A.
  • 3129774065 | +1 312-977-4065 Illinois U.S.A.
  • 3129774066 | +1 312-977-4066 Illinois U.S.A.
  • 3129774067 | +1 312-977-4067 Illinois U.S.A.
  • 3129774068 | +1 312-977-4068 Illinois U.S.A.
  • 3129774069 | +1 312-977-4069 Illinois U.S.A.
  • 3129774070 | +1 312-977-4070 Illinois U.S.A.
  • 3129774071 | +1 312-977-4071 Illinois U.S.A.
  • 3129774072 | +1 312-977-4072 Illinois U.S.A.
  • 3129774073 | +1 312-977-4073 Illinois U.S.A.
  • 3129774074 | +1 312-977-4074 Illinois U.S.A.
  • 3129774075 | +1 312-977-4075 Illinois U.S.A.
  • 3129774076 | +1 312-977-4076 Illinois U.S.A.
  • 3129774077 | +1 312-977-4077 Illinois U.S.A.
  • 3129774078 | +1 312-977-4078 Illinois U.S.A.
  • 3129774079 | +1 312-977-4079 Illinois U.S.A.
  • 3129774080 | +1 312-977-4080 Illinois U.S.A.
  • 3129774081 | +1 312-977-4081 Illinois U.S.A.
  • 3129774082 | +1 312-977-4082 Illinois U.S.A.
  • 3129774083 | +1 312-977-4083 Illinois U.S.A.
  • 3129774084 | +1 312-977-4084 Illinois U.S.A.
  • 3129774085 | +1 312-977-4085 Illinois U.S.A.
  • 3129774086 | +1 312-977-4086 Illinois U.S.A.
  • 3129774087 | +1 312-977-4087 Illinois U.S.A.
  • 3129774088 | +1 312-977-4088 Illinois U.S.A.
  • 3129774089 | +1 312-977-4089 Illinois U.S.A.
  • 3129774090 | +1 312-977-4090 Illinois U.S.A.
  • 3129774091 | +1 312-977-4091 Illinois U.S.A.
  • 3129774092 | +1 312-977-4092 Illinois U.S.A.
  • 3129774093 | +1 312-977-4093 Illinois U.S.A.
  • 3129774094 | +1 312-977-4094 Illinois U.S.A.
  • 3129774095 | +1 312-977-4095 Illinois U.S.A.
  • 3129774096 | +1 312-977-4096 Illinois U.S.A.
  • 3129774097 | +1 312-977-4097 Illinois U.S.A.
  • 3129774098 | +1 312-977-4098 Illinois U.S.A.
  • 3129774099 | +1 312-977-4099 Illinois U.S.A.