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).

  • 3125421000 | +1 312-542-1000 Illinois U.S.A.
  • 3125421001 | +1 312-542-1001 Illinois U.S.A.
  • 3125421002 | +1 312-542-1002 Illinois U.S.A.
  • 3125421003 | +1 312-542-1003 Illinois U.S.A.
  • 3125421004 | +1 312-542-1004 Illinois U.S.A.
  • 3125421005 | +1 312-542-1005 Illinois U.S.A.
  • 3125421006 | +1 312-542-1006 Illinois U.S.A.
  • 3125421007 | +1 312-542-1007 Illinois U.S.A.
  • 3125421008 | +1 312-542-1008 Illinois U.S.A.
  • 3125421009 | +1 312-542-1009 Illinois U.S.A.
  • 3125421010 | +1 312-542-1010 Illinois U.S.A.
  • 3125421011 | +1 312-542-1011 Illinois U.S.A.
  • 3125421012 | +1 312-542-1012 Illinois U.S.A.
  • 3125421013 | +1 312-542-1013 Illinois U.S.A.
  • 3125421014 | +1 312-542-1014 Illinois U.S.A.
  • 3125421015 | +1 312-542-1015 Illinois U.S.A.
  • 3125421016 | +1 312-542-1016 Illinois U.S.A.
  • 3125421017 | +1 312-542-1017 Illinois U.S.A.
  • 3125421018 | +1 312-542-1018 Illinois U.S.A.
  • 3125421019 | +1 312-542-1019 Illinois U.S.A.
  • 3125421020 | +1 312-542-1020 Illinois U.S.A.
  • 3125421021 | +1 312-542-1021 Illinois U.S.A.
  • 3125421022 | +1 312-542-1022 Illinois U.S.A.
  • 3125421023 | +1 312-542-1023 Illinois U.S.A.
  • 3125421024 | +1 312-542-1024 Illinois U.S.A.
  • 3125421025 | +1 312-542-1025 Illinois U.S.A.
  • 3125421026 | +1 312-542-1026 Illinois U.S.A.
  • 3125421027 | +1 312-542-1027 Illinois U.S.A.
  • 3125421028 | +1 312-542-1028 Illinois U.S.A.
  • 3125421029 | +1 312-542-1029 Illinois U.S.A.
  • 3125421030 | +1 312-542-1030 Illinois U.S.A.
  • 3125421031 | +1 312-542-1031 Illinois U.S.A.
  • 3125421032 | +1 312-542-1032 Illinois U.S.A.
  • 3125421033 | +1 312-542-1033 Illinois U.S.A.
  • 3125421034 | +1 312-542-1034 Illinois U.S.A.
  • 3125421035 | +1 312-542-1035 Illinois U.S.A.
  • 3125421036 | +1 312-542-1036 Illinois U.S.A.
  • 3125421037 | +1 312-542-1037 Illinois U.S.A.
  • 3125421038 | +1 312-542-1038 Illinois U.S.A.
  • 3125421039 | +1 312-542-1039 Illinois U.S.A.
  • 3125421040 | +1 312-542-1040 Illinois U.S.A.
  • 3125421041 | +1 312-542-1041 Illinois U.S.A.
  • 3125421042 | +1 312-542-1042 Illinois U.S.A.
  • 3125421043 | +1 312-542-1043 Illinois U.S.A.
  • 3125421044 | +1 312-542-1044 Illinois U.S.A.
  • 3125421045 | +1 312-542-1045 Illinois U.S.A.
  • 3125421046 | +1 312-542-1046 Illinois U.S.A.
  • 3125421047 | +1 312-542-1047 Illinois U.S.A.
  • 3125421048 | +1 312-542-1048 Illinois U.S.A.
  • 3125421049 | +1 312-542-1049 Illinois U.S.A.
  • 3125421050 | +1 312-542-1050 Illinois U.S.A.
  • 3125421051 | +1 312-542-1051 Illinois U.S.A.
  • 3125421052 | +1 312-542-1052 Illinois U.S.A.
  • 3125421053 | +1 312-542-1053 Illinois U.S.A.
  • 3125421054 | +1 312-542-1054 Illinois U.S.A.
  • 3125421055 | +1 312-542-1055 Illinois U.S.A.
  • 3125421056 | +1 312-542-1056 Illinois U.S.A.
  • 3125421057 | +1 312-542-1057 Illinois U.S.A.
  • 3125421058 | +1 312-542-1058 Illinois U.S.A.
  • 3125421059 | +1 312-542-1059 Illinois U.S.A.
  • 3125421060 | +1 312-542-1060 Illinois U.S.A.
  • 3125421061 | +1 312-542-1061 Illinois U.S.A.
  • 3125421062 | +1 312-542-1062 Illinois U.S.A.
  • 3125421063 | +1 312-542-1063 Illinois U.S.A.
  • 3125421064 | +1 312-542-1064 Illinois U.S.A.
  • 3125421065 | +1 312-542-1065 Illinois U.S.A.
  • 3125421066 | +1 312-542-1066 Illinois U.S.A.
  • 3125421067 | +1 312-542-1067 Illinois U.S.A.
  • 3125421068 | +1 312-542-1068 Illinois U.S.A.
  • 3125421069 | +1 312-542-1069 Illinois U.S.A.
  • 3125421070 | +1 312-542-1070 Illinois U.S.A.
  • 3125421071 | +1 312-542-1071 Illinois U.S.A.
  • 3125421072 | +1 312-542-1072 Illinois U.S.A.
  • 3125421073 | +1 312-542-1073 Illinois U.S.A.
  • 3125421074 | +1 312-542-1074 Illinois U.S.A.
  • 3125421075 | +1 312-542-1075 Illinois U.S.A.
  • 3125421076 | +1 312-542-1076 Illinois U.S.A.
  • 3125421077 | +1 312-542-1077 Illinois U.S.A.
  • 3125421078 | +1 312-542-1078 Illinois U.S.A.
  • 3125421079 | +1 312-542-1079 Illinois U.S.A.
  • 3125421080 | +1 312-542-1080 Illinois U.S.A.
  • 3125421081 | +1 312-542-1081 Illinois U.S.A.
  • 3125421082 | +1 312-542-1082 Illinois U.S.A.
  • 3125421083 | +1 312-542-1083 Illinois U.S.A.
  • 3125421084 | +1 312-542-1084 Illinois U.S.A.
  • 3125421085 | +1 312-542-1085 Illinois U.S.A.
  • 3125421086 | +1 312-542-1086 Illinois U.S.A.
  • 3125421087 | +1 312-542-1087 Illinois U.S.A.
  • 3125421088 | +1 312-542-1088 Illinois U.S.A.
  • 3125421089 | +1 312-542-1089 Illinois U.S.A.
  • 3125421090 | +1 312-542-1090 Illinois U.S.A.
  • 3125421091 | +1 312-542-1091 Illinois U.S.A.
  • 3125421092 | +1 312-542-1092 Illinois U.S.A.
  • 3125421093 | +1 312-542-1093 Illinois U.S.A.
  • 3125421094 | +1 312-542-1094 Illinois U.S.A.
  • 3125421095 | +1 312-542-1095 Illinois U.S.A.
  • 3125421096 | +1 312-542-1096 Illinois U.S.A.
  • 3125421097 | +1 312-542-1097 Illinois U.S.A.
  • 3125421098 | +1 312-542-1098 Illinois U.S.A.
  • 3125421099 | +1 312-542-1099 Illinois U.S.A.