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).

  • 3129431000 | +1 312-943-1000 Illinois U.S.A.
  • 3129431001 | +1 312-943-1001 Illinois U.S.A.
  • 3129431002 | +1 312-943-1002 Illinois U.S.A.
  • 3129431003 | +1 312-943-1003 Illinois U.S.A.
  • 3129431004 | +1 312-943-1004 Illinois U.S.A.
  • 3129431005 | +1 312-943-1005 Illinois U.S.A.
  • 3129431006 | +1 312-943-1006 Illinois U.S.A.
  • 3129431007 | +1 312-943-1007 Illinois U.S.A.
  • 3129431008 | +1 312-943-1008 Illinois U.S.A.
  • 3129431009 | +1 312-943-1009 Illinois U.S.A.
  • 3129431010 | +1 312-943-1010 Illinois U.S.A.
  • 3129431011 | +1 312-943-1011 Illinois U.S.A.
  • 3129431012 | +1 312-943-1012 Illinois U.S.A.
  • 3129431013 | +1 312-943-1013 Illinois U.S.A.
  • 3129431014 | +1 312-943-1014 Illinois U.S.A.
  • 3129431015 | +1 312-943-1015 Illinois U.S.A.
  • 3129431016 | +1 312-943-1016 Illinois U.S.A.
  • 3129431017 | +1 312-943-1017 Illinois U.S.A.
  • 3129431018 | +1 312-943-1018 Illinois U.S.A.
  • 3129431019 | +1 312-943-1019 Illinois U.S.A.
  • 3129431020 | +1 312-943-1020 Illinois U.S.A.
  • 3129431021 | +1 312-943-1021 Illinois U.S.A.
  • 3129431022 | +1 312-943-1022 Illinois U.S.A.
  • 3129431023 | +1 312-943-1023 Illinois U.S.A.
  • 3129431024 | +1 312-943-1024 Illinois U.S.A.
  • 3129431025 | +1 312-943-1025 Illinois U.S.A.
  • 3129431026 | +1 312-943-1026 Illinois U.S.A.
  • 3129431027 | +1 312-943-1027 Illinois U.S.A.
  • 3129431028 | +1 312-943-1028 Illinois U.S.A.
  • 3129431029 | +1 312-943-1029 Illinois U.S.A.
  • 3129431030 | +1 312-943-1030 Illinois U.S.A.
  • 3129431031 | +1 312-943-1031 Illinois U.S.A.
  • 3129431032 | +1 312-943-1032 Illinois U.S.A.
  • 3129431033 | +1 312-943-1033 Illinois U.S.A.
  • 3129431034 | +1 312-943-1034 Illinois U.S.A.
  • 3129431035 | +1 312-943-1035 Illinois U.S.A.
  • 3129431036 | +1 312-943-1036 Illinois U.S.A.
  • 3129431037 | +1 312-943-1037 Illinois U.S.A.
  • 3129431038 | +1 312-943-1038 Illinois U.S.A.
  • 3129431039 | +1 312-943-1039 Illinois U.S.A.
  • 3129431040 | +1 312-943-1040 Illinois U.S.A.
  • 3129431041 | +1 312-943-1041 Illinois U.S.A.
  • 3129431042 | +1 312-943-1042 Illinois U.S.A.
  • 3129431043 | +1 312-943-1043 Illinois U.S.A.
  • 3129431044 | +1 312-943-1044 Illinois U.S.A.
  • 3129431045 | +1 312-943-1045 Illinois U.S.A.
  • 3129431046 | +1 312-943-1046 Illinois U.S.A.
  • 3129431047 | +1 312-943-1047 Illinois U.S.A.
  • 3129431048 | +1 312-943-1048 Illinois U.S.A.
  • 3129431049 | +1 312-943-1049 Illinois U.S.A.
  • 3129431050 | +1 312-943-1050 Illinois U.S.A.
  • 3129431051 | +1 312-943-1051 Illinois U.S.A.
  • 3129431052 | +1 312-943-1052 Illinois U.S.A.
  • 3129431053 | +1 312-943-1053 Illinois U.S.A.
  • 3129431054 | +1 312-943-1054 Illinois U.S.A.
  • 3129431055 | +1 312-943-1055 Illinois U.S.A.
  • 3129431056 | +1 312-943-1056 Illinois U.S.A.
  • 3129431057 | +1 312-943-1057 Illinois U.S.A.
  • 3129431058 | +1 312-943-1058 Illinois U.S.A.
  • 3129431059 | +1 312-943-1059 Illinois U.S.A.
  • 3129431060 | +1 312-943-1060 Illinois U.S.A.
  • 3129431061 | +1 312-943-1061 Illinois U.S.A.
  • 3129431062 | +1 312-943-1062 Illinois U.S.A.
  • 3129431063 | +1 312-943-1063 Illinois U.S.A.
  • 3129431064 | +1 312-943-1064 Illinois U.S.A.
  • 3129431065 | +1 312-943-1065 Illinois U.S.A.
  • 3129431066 | +1 312-943-1066 Illinois U.S.A.
  • 3129431067 | +1 312-943-1067 Illinois U.S.A.
  • 3129431068 | +1 312-943-1068 Illinois U.S.A.
  • 3129431069 | +1 312-943-1069 Illinois U.S.A.
  • 3129431070 | +1 312-943-1070 Illinois U.S.A.
  • 3129431071 | +1 312-943-1071 Illinois U.S.A.
  • 3129431072 | +1 312-943-1072 Illinois U.S.A.
  • 3129431073 | +1 312-943-1073 Illinois U.S.A.
  • 3129431074 | +1 312-943-1074 Illinois U.S.A.
  • 3129431075 | +1 312-943-1075 Illinois U.S.A.
  • 3129431076 | +1 312-943-1076 Illinois U.S.A.
  • 3129431077 | +1 312-943-1077 Illinois U.S.A.
  • 3129431078 | +1 312-943-1078 Illinois U.S.A.
  • 3129431079 | +1 312-943-1079 Illinois U.S.A.
  • 3129431080 | +1 312-943-1080 Illinois U.S.A.
  • 3129431081 | +1 312-943-1081 Illinois U.S.A.
  • 3129431082 | +1 312-943-1082 Illinois U.S.A.
  • 3129431083 | +1 312-943-1083 Illinois U.S.A.
  • 3129431084 | +1 312-943-1084 Illinois U.S.A.
  • 3129431085 | +1 312-943-1085 Illinois U.S.A.
  • 3129431086 | +1 312-943-1086 Illinois U.S.A.
  • 3129431087 | +1 312-943-1087 Illinois U.S.A.
  • 3129431088 | +1 312-943-1088 Illinois U.S.A.
  • 3129431089 | +1 312-943-1089 Illinois U.S.A.
  • 3129431090 | +1 312-943-1090 Illinois U.S.A.
  • 3129431091 | +1 312-943-1091 Illinois U.S.A.
  • 3129431092 | +1 312-943-1092 Illinois U.S.A.
  • 3129431093 | +1 312-943-1093 Illinois U.S.A.
  • 3129431094 | +1 312-943-1094 Illinois U.S.A.
  • 3129431095 | +1 312-943-1095 Illinois U.S.A.
  • 3129431096 | +1 312-943-1096 Illinois U.S.A.
  • 3129431097 | +1 312-943-1097 Illinois U.S.A.
  • 3129431098 | +1 312-943-1098 Illinois U.S.A.
  • 3129431099 | +1 312-943-1099 Illinois U.S.A.