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).

  • 3128423000 | +1 312-842-3000 Illinois U.S.A.
  • 3128423001 | +1 312-842-3001 Illinois U.S.A.
  • 3128423002 | +1 312-842-3002 Illinois U.S.A.
  • 3128423003 | +1 312-842-3003 Illinois U.S.A.
  • 3128423004 | +1 312-842-3004 Illinois U.S.A.
  • 3128423005 | +1 312-842-3005 Illinois U.S.A.
  • 3128423006 | +1 312-842-3006 Illinois U.S.A.
  • 3128423007 | +1 312-842-3007 Illinois U.S.A.
  • 3128423008 | +1 312-842-3008 Illinois U.S.A.
  • 3128423009 | +1 312-842-3009 Illinois U.S.A.
  • 3128423010 | +1 312-842-3010 Illinois U.S.A.
  • 3128423011 | +1 312-842-3011 Illinois U.S.A.
  • 3128423012 | +1 312-842-3012 Illinois U.S.A.
  • 3128423013 | +1 312-842-3013 Illinois U.S.A.
  • 3128423014 | +1 312-842-3014 Illinois U.S.A.
  • 3128423015 | +1 312-842-3015 Illinois U.S.A.
  • 3128423016 | +1 312-842-3016 Illinois U.S.A.
  • 3128423017 | +1 312-842-3017 Illinois U.S.A.
  • 3128423018 | +1 312-842-3018 Illinois U.S.A.
  • 3128423019 | +1 312-842-3019 Illinois U.S.A.
  • 3128423020 | +1 312-842-3020 Illinois U.S.A.
  • 3128423021 | +1 312-842-3021 Illinois U.S.A.
  • 3128423022 | +1 312-842-3022 Illinois U.S.A.
  • 3128423023 | +1 312-842-3023 Illinois U.S.A.
  • 3128423024 | +1 312-842-3024 Illinois U.S.A.
  • 3128423025 | +1 312-842-3025 Illinois U.S.A.
  • 3128423026 | +1 312-842-3026 Illinois U.S.A.
  • 3128423027 | +1 312-842-3027 Illinois U.S.A.
  • 3128423028 | +1 312-842-3028 Illinois U.S.A.
  • 3128423029 | +1 312-842-3029 Illinois U.S.A.
  • 3128423030 | +1 312-842-3030 Illinois U.S.A.
  • 3128423031 | +1 312-842-3031 Illinois U.S.A.
  • 3128423032 | +1 312-842-3032 Illinois U.S.A.
  • 3128423033 | +1 312-842-3033 Illinois U.S.A.
  • 3128423034 | +1 312-842-3034 Illinois U.S.A.
  • 3128423035 | +1 312-842-3035 Illinois U.S.A.
  • 3128423036 | +1 312-842-3036 Illinois U.S.A.
  • 3128423037 | +1 312-842-3037 Illinois U.S.A.
  • 3128423038 | +1 312-842-3038 Illinois U.S.A.
  • 3128423039 | +1 312-842-3039 Illinois U.S.A.
  • 3128423040 | +1 312-842-3040 Illinois U.S.A.
  • 3128423041 | +1 312-842-3041 Illinois U.S.A.
  • 3128423042 | +1 312-842-3042 Illinois U.S.A.
  • 3128423043 | +1 312-842-3043 Illinois U.S.A.
  • 3128423044 | +1 312-842-3044 Illinois U.S.A.
  • 3128423045 | +1 312-842-3045 Illinois U.S.A.
  • 3128423046 | +1 312-842-3046 Illinois U.S.A.
  • 3128423047 | +1 312-842-3047 Illinois U.S.A.
  • 3128423048 | +1 312-842-3048 Illinois U.S.A.
  • 3128423049 | +1 312-842-3049 Illinois U.S.A.
  • 3128423050 | +1 312-842-3050 Illinois U.S.A.
  • 3128423051 | +1 312-842-3051 Illinois U.S.A.
  • 3128423052 | +1 312-842-3052 Illinois U.S.A.
  • 3128423053 | +1 312-842-3053 Illinois U.S.A.
  • 3128423054 | +1 312-842-3054 Illinois U.S.A.
  • 3128423055 | +1 312-842-3055 Illinois U.S.A.
  • 3128423056 | +1 312-842-3056 Illinois U.S.A.
  • 3128423057 | +1 312-842-3057 Illinois U.S.A.
  • 3128423058 | +1 312-842-3058 Illinois U.S.A.
  • 3128423059 | +1 312-842-3059 Illinois U.S.A.
  • 3128423060 | +1 312-842-3060 Illinois U.S.A.
  • 3128423061 | +1 312-842-3061 Illinois U.S.A.
  • 3128423062 | +1 312-842-3062 Illinois U.S.A.
  • 3128423063 | +1 312-842-3063 Illinois U.S.A.
  • 3128423064 | +1 312-842-3064 Illinois U.S.A.
  • 3128423065 | +1 312-842-3065 Illinois U.S.A.
  • 3128423066 | +1 312-842-3066 Illinois U.S.A.
  • 3128423067 | +1 312-842-3067 Illinois U.S.A.
  • 3128423068 | +1 312-842-3068 Illinois U.S.A.
  • 3128423069 | +1 312-842-3069 Illinois U.S.A.
  • 3128423070 | +1 312-842-3070 Illinois U.S.A.
  • 3128423071 | +1 312-842-3071 Illinois U.S.A.
  • 3128423072 | +1 312-842-3072 Illinois U.S.A.
  • 3128423073 | +1 312-842-3073 Illinois U.S.A.
  • 3128423074 | +1 312-842-3074 Illinois U.S.A.
  • 3128423075 | +1 312-842-3075 Illinois U.S.A.
  • 3128423076 | +1 312-842-3076 Illinois U.S.A.
  • 3128423077 | +1 312-842-3077 Illinois U.S.A.
  • 3128423078 | +1 312-842-3078 Illinois U.S.A.
  • 3128423079 | +1 312-842-3079 Illinois U.S.A.
  • 3128423080 | +1 312-842-3080 Illinois U.S.A.
  • 3128423081 | +1 312-842-3081 Illinois U.S.A.
  • 3128423082 | +1 312-842-3082 Illinois U.S.A.
  • 3128423083 | +1 312-842-3083 Illinois U.S.A.
  • 3128423084 | +1 312-842-3084 Illinois U.S.A.
  • 3128423085 | +1 312-842-3085 Illinois U.S.A.
  • 3128423086 | +1 312-842-3086 Illinois U.S.A.
  • 3128423087 | +1 312-842-3087 Illinois U.S.A.
  • 3128423088 | +1 312-842-3088 Illinois U.S.A.
  • 3128423089 | +1 312-842-3089 Illinois U.S.A.
  • 3128423090 | +1 312-842-3090 Illinois U.S.A.
  • 3128423091 | +1 312-842-3091 Illinois U.S.A.
  • 3128423092 | +1 312-842-3092 Illinois U.S.A.
  • 3128423093 | +1 312-842-3093 Illinois U.S.A.
  • 3128423094 | +1 312-842-3094 Illinois U.S.A.
  • 3128423095 | +1 312-842-3095 Illinois U.S.A.
  • 3128423096 | +1 312-842-3096 Illinois U.S.A.
  • 3128423097 | +1 312-842-3097 Illinois U.S.A.
  • 3128423098 | +1 312-842-3098 Illinois U.S.A.
  • 3128423099 | +1 312-842-3099 Illinois U.S.A.