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).

  • 3128391800 | +1 312-839-1800 Illinois U.S.A.
  • 3128391801 | +1 312-839-1801 Illinois U.S.A.
  • 3128391802 | +1 312-839-1802 Illinois U.S.A.
  • 3128391803 | +1 312-839-1803 Illinois U.S.A.
  • 3128391804 | +1 312-839-1804 Illinois U.S.A.
  • 3128391805 | +1 312-839-1805 Illinois U.S.A.
  • 3128391806 | +1 312-839-1806 Illinois U.S.A.
  • 3128391807 | +1 312-839-1807 Illinois U.S.A.
  • 3128391808 | +1 312-839-1808 Illinois U.S.A.
  • 3128391809 | +1 312-839-1809 Illinois U.S.A.
  • 3128391810 | +1 312-839-1810 Illinois U.S.A.
  • 3128391811 | +1 312-839-1811 Illinois U.S.A.
  • 3128391812 | +1 312-839-1812 Illinois U.S.A.
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  • 3128391851 | +1 312-839-1851 Illinois U.S.A.
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  • 3128391853 | +1 312-839-1853 Illinois U.S.A.
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  • 3128391867 | +1 312-839-1867 Illinois U.S.A.
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  • 3128391870 | +1 312-839-1870 Illinois U.S.A.
  • 3128391871 | +1 312-839-1871 Illinois U.S.A.
  • 3128391872 | +1 312-839-1872 Illinois U.S.A.
  • 3128391873 | +1 312-839-1873 Illinois U.S.A.
  • 3128391874 | +1 312-839-1874 Illinois U.S.A.
  • 3128391875 | +1 312-839-1875 Illinois U.S.A.
  • 3128391876 | +1 312-839-1876 Illinois U.S.A.
  • 3128391877 | +1 312-839-1877 Illinois U.S.A.
  • 3128391878 | +1 312-839-1878 Illinois U.S.A.
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  • 3128391894 | +1 312-839-1894 Illinois U.S.A.
  • 3128391895 | +1 312-839-1895 Illinois U.S.A.
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  • 3128391897 | +1 312-839-1897 Illinois U.S.A.
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  • 3128391899 | +1 312-839-1899 Illinois U.S.A.