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).

  • 3128509900 | +1 312-850-9900 Illinois U.S.A.
  • 3128509901 | +1 312-850-9901 Illinois U.S.A.
  • 3128509902 | +1 312-850-9902 Illinois U.S.A.
  • 3128509903 | +1 312-850-9903 Illinois U.S.A.
  • 3128509904 | +1 312-850-9904 Illinois U.S.A.
  • 3128509905 | +1 312-850-9905 Illinois U.S.A.
  • 3128509906 | +1 312-850-9906 Illinois U.S.A.
  • 3128509907 | +1 312-850-9907 Illinois U.S.A.
  • 3128509908 | +1 312-850-9908 Illinois U.S.A.
  • 3128509909 | +1 312-850-9909 Illinois U.S.A.
  • 3128509910 | +1 312-850-9910 Illinois U.S.A.
  • 3128509911 | +1 312-850-9911 Illinois U.S.A.
  • 3128509912 | +1 312-850-9912 Illinois U.S.A.
  • 3128509913 | +1 312-850-9913 Illinois U.S.A.
  • 3128509914 | +1 312-850-9914 Illinois U.S.A.
  • 3128509915 | +1 312-850-9915 Illinois U.S.A.
  • 3128509916 | +1 312-850-9916 Illinois U.S.A.
  • 3128509917 | +1 312-850-9917 Illinois U.S.A.
  • 3128509918 | +1 312-850-9918 Illinois U.S.A.
  • 3128509919 | +1 312-850-9919 Illinois U.S.A.
  • 3128509920 | +1 312-850-9920 Illinois U.S.A.
  • 3128509921 | +1 312-850-9921 Illinois U.S.A.
  • 3128509922 | +1 312-850-9922 Illinois U.S.A.
  • 3128509923 | +1 312-850-9923 Illinois U.S.A.
  • 3128509924 | +1 312-850-9924 Illinois U.S.A.
  • 3128509925 | +1 312-850-9925 Illinois U.S.A.
  • 3128509926 | +1 312-850-9926 Illinois U.S.A.
  • 3128509927 | +1 312-850-9927 Illinois U.S.A.
  • 3128509928 | +1 312-850-9928 Illinois U.S.A.
  • 3128509929 | +1 312-850-9929 Illinois U.S.A.
  • 3128509930 | +1 312-850-9930 Illinois U.S.A.
  • 3128509931 | +1 312-850-9931 Illinois U.S.A.
  • 3128509932 | +1 312-850-9932 Illinois U.S.A.
  • 3128509933 | +1 312-850-9933 Illinois U.S.A.
  • 3128509934 | +1 312-850-9934 Illinois U.S.A.
  • 3128509935 | +1 312-850-9935 Illinois U.S.A.
  • 3128509936 | +1 312-850-9936 Illinois U.S.A.
  • 3128509937 | +1 312-850-9937 Illinois U.S.A.
  • 3128509938 | +1 312-850-9938 Illinois U.S.A.
  • 3128509939 | +1 312-850-9939 Illinois U.S.A.
  • 3128509940 | +1 312-850-9940 Illinois U.S.A.
  • 3128509941 | +1 312-850-9941 Illinois U.S.A.
  • 3128509942 | +1 312-850-9942 Illinois U.S.A.
  • 3128509943 | +1 312-850-9943 Illinois U.S.A.
  • 3128509944 | +1 312-850-9944 Illinois U.S.A.
  • 3128509945 | +1 312-850-9945 Illinois U.S.A.
  • 3128509946 | +1 312-850-9946 Illinois U.S.A.
  • 3128509947 | +1 312-850-9947 Illinois U.S.A.
  • 3128509948 | +1 312-850-9948 Illinois U.S.A.
  • 3128509949 | +1 312-850-9949 Illinois U.S.A.
  • 3128509950 | +1 312-850-9950 Illinois U.S.A.
  • 3128509951 | +1 312-850-9951 Illinois U.S.A.
  • 3128509952 | +1 312-850-9952 Illinois U.S.A.
  • 3128509953 | +1 312-850-9953 Illinois U.S.A.
  • 3128509954 | +1 312-850-9954 Illinois U.S.A.
  • 3128509955 | +1 312-850-9955 Illinois U.S.A.
  • 3128509956 | +1 312-850-9956 Illinois U.S.A.
  • 3128509957 | +1 312-850-9957 Illinois U.S.A.
  • 3128509958 | +1 312-850-9958 Illinois U.S.A.
  • 3128509959 | +1 312-850-9959 Illinois U.S.A.
  • 3128509960 | +1 312-850-9960 Illinois U.S.A.
  • 3128509961 | +1 312-850-9961 Illinois U.S.A.
  • 3128509962 | +1 312-850-9962 Illinois U.S.A.
  • 3128509963 | +1 312-850-9963 Illinois U.S.A.
  • 3128509964 | +1 312-850-9964 Illinois U.S.A.
  • 3128509965 | +1 312-850-9965 Illinois U.S.A.
  • 3128509966 | +1 312-850-9966 Illinois U.S.A.
  • 3128509967 | +1 312-850-9967 Illinois U.S.A.
  • 3128509968 | +1 312-850-9968 Illinois U.S.A.
  • 3128509969 | +1 312-850-9969 Illinois U.S.A.
  • 3128509970 | +1 312-850-9970 Illinois U.S.A.
  • 3128509971 | +1 312-850-9971 Illinois U.S.A.
  • 3128509972 | +1 312-850-9972 Illinois U.S.A.
  • 3128509973 | +1 312-850-9973 Illinois U.S.A.
  • 3128509974 | +1 312-850-9974 Illinois U.S.A.
  • 3128509975 | +1 312-850-9975 Illinois U.S.A.
  • 3128509976 | +1 312-850-9976 Illinois U.S.A.
  • 3128509977 | +1 312-850-9977 Illinois U.S.A.
  • 3128509978 | +1 312-850-9978 Illinois U.S.A.
  • 3128509979 | +1 312-850-9979 Illinois U.S.A.
  • 3128509980 | +1 312-850-9980 Illinois U.S.A.
  • 3128509981 | +1 312-850-9981 Illinois U.S.A.
  • 3128509982 | +1 312-850-9982 Illinois U.S.A.
  • 3128509983 | +1 312-850-9983 Illinois U.S.A.
  • 3128509984 | +1 312-850-9984 Illinois U.S.A.
  • 3128509985 | +1 312-850-9985 Illinois U.S.A.
  • 3128509986 | +1 312-850-9986 Illinois U.S.A.
  • 3128509987 | +1 312-850-9987 Illinois U.S.A.
  • 3128509988 | +1 312-850-9988 Illinois U.S.A.
  • 3128509989 | +1 312-850-9989 Illinois U.S.A.
  • 3128509990 | +1 312-850-9990 Illinois U.S.A.
  • 3128509991 | +1 312-850-9991 Illinois U.S.A.
  • 3128509992 | +1 312-850-9992 Illinois U.S.A.
  • 3128509993 | +1 312-850-9993 Illinois U.S.A.
  • 3128509994 | +1 312-850-9994 Illinois U.S.A.
  • 3128509995 | +1 312-850-9995 Illinois U.S.A.
  • 3128509996 | +1 312-850-9996 Illinois U.S.A.
  • 3128509997 | +1 312-850-9997 Illinois U.S.A.
  • 3128509998 | +1 312-850-9998 Illinois U.S.A.
  • 3128509999 | +1 312-850-9999 Illinois U.S.A.