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).

  • 3128704000 | +1 312-870-4000 Illinois U.S.A.
  • 3128704001 | +1 312-870-4001 Illinois U.S.A.
  • 3128704002 | +1 312-870-4002 Illinois U.S.A.
  • 3128704003 | +1 312-870-4003 Illinois U.S.A.
  • 3128704004 | +1 312-870-4004 Illinois U.S.A.
  • 3128704005 | +1 312-870-4005 Illinois U.S.A.
  • 3128704006 | +1 312-870-4006 Illinois U.S.A.
  • 3128704007 | +1 312-870-4007 Illinois U.S.A.
  • 3128704008 | +1 312-870-4008 Illinois U.S.A.
  • 3128704009 | +1 312-870-4009 Illinois U.S.A.
  • 3128704010 | +1 312-870-4010 Illinois U.S.A.
  • 3128704011 | +1 312-870-4011 Illinois U.S.A.
  • 3128704012 | +1 312-870-4012 Illinois U.S.A.
  • 3128704013 | +1 312-870-4013 Illinois U.S.A.
  • 3128704014 | +1 312-870-4014 Illinois U.S.A.
  • 3128704015 | +1 312-870-4015 Illinois U.S.A.
  • 3128704016 | +1 312-870-4016 Illinois U.S.A.
  • 3128704017 | +1 312-870-4017 Illinois U.S.A.
  • 3128704018 | +1 312-870-4018 Illinois U.S.A.
  • 3128704019 | +1 312-870-4019 Illinois U.S.A.
  • 3128704020 | +1 312-870-4020 Illinois U.S.A.
  • 3128704021 | +1 312-870-4021 Illinois U.S.A.
  • 3128704022 | +1 312-870-4022 Illinois U.S.A.
  • 3128704023 | +1 312-870-4023 Illinois U.S.A.
  • 3128704024 | +1 312-870-4024 Illinois U.S.A.
  • 3128704025 | +1 312-870-4025 Illinois U.S.A.
  • 3128704026 | +1 312-870-4026 Illinois U.S.A.
  • 3128704027 | +1 312-870-4027 Illinois U.S.A.
  • 3128704028 | +1 312-870-4028 Illinois U.S.A.
  • 3128704029 | +1 312-870-4029 Illinois U.S.A.
  • 3128704030 | +1 312-870-4030 Illinois U.S.A.
  • 3128704031 | +1 312-870-4031 Illinois U.S.A.
  • 3128704032 | +1 312-870-4032 Illinois U.S.A.
  • 3128704033 | +1 312-870-4033 Illinois U.S.A.
  • 3128704034 | +1 312-870-4034 Illinois U.S.A.
  • 3128704035 | +1 312-870-4035 Illinois U.S.A.
  • 3128704036 | +1 312-870-4036 Illinois U.S.A.
  • 3128704037 | +1 312-870-4037 Illinois U.S.A.
  • 3128704038 | +1 312-870-4038 Illinois U.S.A.
  • 3128704039 | +1 312-870-4039 Illinois U.S.A.
  • 3128704040 | +1 312-870-4040 Illinois U.S.A.
  • 3128704041 | +1 312-870-4041 Illinois U.S.A.
  • 3128704042 | +1 312-870-4042 Illinois U.S.A.
  • 3128704043 | +1 312-870-4043 Illinois U.S.A.
  • 3128704044 | +1 312-870-4044 Illinois U.S.A.
  • 3128704045 | +1 312-870-4045 Illinois U.S.A.
  • 3128704046 | +1 312-870-4046 Illinois U.S.A.
  • 3128704047 | +1 312-870-4047 Illinois U.S.A.
  • 3128704048 | +1 312-870-4048 Illinois U.S.A.
  • 3128704049 | +1 312-870-4049 Illinois U.S.A.
  • 3128704050 | +1 312-870-4050 Illinois U.S.A.
  • 3128704051 | +1 312-870-4051 Illinois U.S.A.
  • 3128704052 | +1 312-870-4052 Illinois U.S.A.
  • 3128704053 | +1 312-870-4053 Illinois U.S.A.
  • 3128704054 | +1 312-870-4054 Illinois U.S.A.
  • 3128704055 | +1 312-870-4055 Illinois U.S.A.
  • 3128704056 | +1 312-870-4056 Illinois U.S.A.
  • 3128704057 | +1 312-870-4057 Illinois U.S.A.
  • 3128704058 | +1 312-870-4058 Illinois U.S.A.
  • 3128704059 | +1 312-870-4059 Illinois U.S.A.
  • 3128704060 | +1 312-870-4060 Illinois U.S.A.
  • 3128704061 | +1 312-870-4061 Illinois U.S.A.
  • 3128704062 | +1 312-870-4062 Illinois U.S.A.
  • 3128704063 | +1 312-870-4063 Illinois U.S.A.
  • 3128704064 | +1 312-870-4064 Illinois U.S.A.
  • 3128704065 | +1 312-870-4065 Illinois U.S.A.
  • 3128704066 | +1 312-870-4066 Illinois U.S.A.
  • 3128704067 | +1 312-870-4067 Illinois U.S.A.
  • 3128704068 | +1 312-870-4068 Illinois U.S.A.
  • 3128704069 | +1 312-870-4069 Illinois U.S.A.
  • 3128704070 | +1 312-870-4070 Illinois U.S.A.
  • 3128704071 | +1 312-870-4071 Illinois U.S.A.
  • 3128704072 | +1 312-870-4072 Illinois U.S.A.
  • 3128704073 | +1 312-870-4073 Illinois U.S.A.
  • 3128704074 | +1 312-870-4074 Illinois U.S.A.
  • 3128704075 | +1 312-870-4075 Illinois U.S.A.
  • 3128704076 | +1 312-870-4076 Illinois U.S.A.
  • 3128704077 | +1 312-870-4077 Illinois U.S.A.
  • 3128704078 | +1 312-870-4078 Illinois U.S.A.
  • 3128704079 | +1 312-870-4079 Illinois U.S.A.
  • 3128704080 | +1 312-870-4080 Illinois U.S.A.
  • 3128704081 | +1 312-870-4081 Illinois U.S.A.
  • 3128704082 | +1 312-870-4082 Illinois U.S.A.
  • 3128704083 | +1 312-870-4083 Illinois U.S.A.
  • 3128704084 | +1 312-870-4084 Illinois U.S.A.
  • 3128704085 | +1 312-870-4085 Illinois U.S.A.
  • 3128704086 | +1 312-870-4086 Illinois U.S.A.
  • 3128704087 | +1 312-870-4087 Illinois U.S.A.
  • 3128704088 | +1 312-870-4088 Illinois U.S.A.
  • 3128704089 | +1 312-870-4089 Illinois U.S.A.
  • 3128704090 | +1 312-870-4090 Illinois U.S.A.
  • 3128704091 | +1 312-870-4091 Illinois U.S.A.
  • 3128704092 | +1 312-870-4092 Illinois U.S.A.
  • 3128704093 | +1 312-870-4093 Illinois U.S.A.
  • 3128704094 | +1 312-870-4094 Illinois U.S.A.
  • 3128704095 | +1 312-870-4095 Illinois U.S.A.
  • 3128704096 | +1 312-870-4096 Illinois U.S.A.
  • 3128704097 | +1 312-870-4097 Illinois U.S.A.
  • 3128704098 | +1 312-870-4098 Illinois U.S.A.
  • 3128704099 | +1 312-870-4099 Illinois U.S.A.