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).

  • 3128501000 | +1 312-850-1000 Illinois U.S.A.
  • 3128501001 | +1 312-850-1001 Illinois U.S.A.
  • 3128501002 | +1 312-850-1002 Illinois U.S.A.
  • 3128501003 | +1 312-850-1003 Illinois U.S.A.
  • 3128501004 | +1 312-850-1004 Illinois U.S.A.
  • 3128501005 | +1 312-850-1005 Illinois U.S.A.
  • 3128501006 | +1 312-850-1006 Illinois U.S.A.
  • 3128501007 | +1 312-850-1007 Illinois U.S.A.
  • 3128501008 | +1 312-850-1008 Illinois U.S.A.
  • 3128501009 | +1 312-850-1009 Illinois U.S.A.
  • 3128501010 | +1 312-850-1010 Illinois U.S.A.
  • 3128501011 | +1 312-850-1011 Illinois U.S.A.
  • 3128501012 | +1 312-850-1012 Illinois U.S.A.
  • 3128501013 | +1 312-850-1013 Illinois U.S.A.
  • 3128501014 | +1 312-850-1014 Illinois U.S.A.
  • 3128501015 | +1 312-850-1015 Illinois U.S.A.
  • 3128501016 | +1 312-850-1016 Illinois U.S.A.
  • 3128501017 | +1 312-850-1017 Illinois U.S.A.
  • 3128501018 | +1 312-850-1018 Illinois U.S.A.
  • 3128501019 | +1 312-850-1019 Illinois U.S.A.
  • 3128501020 | +1 312-850-1020 Illinois U.S.A.
  • 3128501021 | +1 312-850-1021 Illinois U.S.A.
  • 3128501022 | +1 312-850-1022 Illinois U.S.A.
  • 3128501023 | +1 312-850-1023 Illinois U.S.A.
  • 3128501024 | +1 312-850-1024 Illinois U.S.A.
  • 3128501025 | +1 312-850-1025 Illinois U.S.A.
  • 3128501026 | +1 312-850-1026 Illinois U.S.A.
  • 3128501027 | +1 312-850-1027 Illinois U.S.A.
  • 3128501028 | +1 312-850-1028 Illinois U.S.A.
  • 3128501029 | +1 312-850-1029 Illinois U.S.A.
  • 3128501030 | +1 312-850-1030 Illinois U.S.A.
  • 3128501031 | +1 312-850-1031 Illinois U.S.A.
  • 3128501032 | +1 312-850-1032 Illinois U.S.A.
  • 3128501033 | +1 312-850-1033 Illinois U.S.A.
  • 3128501034 | +1 312-850-1034 Illinois U.S.A.
  • 3128501035 | +1 312-850-1035 Illinois U.S.A.
  • 3128501036 | +1 312-850-1036 Illinois U.S.A.
  • 3128501037 | +1 312-850-1037 Illinois U.S.A.
  • 3128501038 | +1 312-850-1038 Illinois U.S.A.
  • 3128501039 | +1 312-850-1039 Illinois U.S.A.
  • 3128501040 | +1 312-850-1040 Illinois U.S.A.
  • 3128501041 | +1 312-850-1041 Illinois U.S.A.
  • 3128501042 | +1 312-850-1042 Illinois U.S.A.
  • 3128501043 | +1 312-850-1043 Illinois U.S.A.
  • 3128501044 | +1 312-850-1044 Illinois U.S.A.
  • 3128501045 | +1 312-850-1045 Illinois U.S.A.
  • 3128501046 | +1 312-850-1046 Illinois U.S.A.
  • 3128501047 | +1 312-850-1047 Illinois U.S.A.
  • 3128501048 | +1 312-850-1048 Illinois U.S.A.
  • 3128501049 | +1 312-850-1049 Illinois U.S.A.
  • 3128501050 | +1 312-850-1050 Illinois U.S.A.
  • 3128501051 | +1 312-850-1051 Illinois U.S.A.
  • 3128501052 | +1 312-850-1052 Illinois U.S.A.
  • 3128501053 | +1 312-850-1053 Illinois U.S.A.
  • 3128501054 | +1 312-850-1054 Illinois U.S.A.
  • 3128501055 | +1 312-850-1055 Illinois U.S.A.
  • 3128501056 | +1 312-850-1056 Illinois U.S.A.
  • 3128501057 | +1 312-850-1057 Illinois U.S.A.
  • 3128501058 | +1 312-850-1058 Illinois U.S.A.
  • 3128501059 | +1 312-850-1059 Illinois U.S.A.
  • 3128501060 | +1 312-850-1060 Illinois U.S.A.
  • 3128501061 | +1 312-850-1061 Illinois U.S.A.
  • 3128501062 | +1 312-850-1062 Illinois U.S.A.
  • 3128501063 | +1 312-850-1063 Illinois U.S.A.
  • 3128501064 | +1 312-850-1064 Illinois U.S.A.
  • 3128501065 | +1 312-850-1065 Illinois U.S.A.
  • 3128501066 | +1 312-850-1066 Illinois U.S.A.
  • 3128501067 | +1 312-850-1067 Illinois U.S.A.
  • 3128501068 | +1 312-850-1068 Illinois U.S.A.
  • 3128501069 | +1 312-850-1069 Illinois U.S.A.
  • 3128501070 | +1 312-850-1070 Illinois U.S.A.
  • 3128501071 | +1 312-850-1071 Illinois U.S.A.
  • 3128501072 | +1 312-850-1072 Illinois U.S.A.
  • 3128501073 | +1 312-850-1073 Illinois U.S.A.
  • 3128501074 | +1 312-850-1074 Illinois U.S.A.
  • 3128501075 | +1 312-850-1075 Illinois U.S.A.
  • 3128501076 | +1 312-850-1076 Illinois U.S.A.
  • 3128501077 | +1 312-850-1077 Illinois U.S.A.
  • 3128501078 | +1 312-850-1078 Illinois U.S.A.
  • 3128501079 | +1 312-850-1079 Illinois U.S.A.
  • 3128501080 | +1 312-850-1080 Illinois U.S.A.
  • 3128501081 | +1 312-850-1081 Illinois U.S.A.
  • 3128501082 | +1 312-850-1082 Illinois U.S.A.
  • 3128501083 | +1 312-850-1083 Illinois U.S.A.
  • 3128501084 | +1 312-850-1084 Illinois U.S.A.
  • 3128501085 | +1 312-850-1085 Illinois U.S.A.
  • 3128501086 | +1 312-850-1086 Illinois U.S.A.
  • 3128501087 | +1 312-850-1087 Illinois U.S.A.
  • 3128501088 | +1 312-850-1088 Illinois U.S.A.
  • 3128501089 | +1 312-850-1089 Illinois U.S.A.
  • 3128501090 | +1 312-850-1090 Illinois U.S.A.
  • 3128501091 | +1 312-850-1091 Illinois U.S.A.
  • 3128501092 | +1 312-850-1092 Illinois U.S.A.
  • 3128501093 | +1 312-850-1093 Illinois U.S.A.
  • 3128501094 | +1 312-850-1094 Illinois U.S.A.
  • 3128501095 | +1 312-850-1095 Illinois U.S.A.
  • 3128501096 | +1 312-850-1096 Illinois U.S.A.
  • 3128501097 | +1 312-850-1097 Illinois U.S.A.
  • 3128501098 | +1 312-850-1098 Illinois U.S.A.
  • 3128501099 | +1 312-850-1099 Illinois U.S.A.