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).

  • 3123001800 | +1 312-300-1800 Illinois U.S.A.
  • 3123001801 | +1 312-300-1801 Illinois U.S.A.
  • 3123001802 | +1 312-300-1802 Illinois U.S.A.
  • 3123001803 | +1 312-300-1803 Illinois U.S.A.
  • 3123001804 | +1 312-300-1804 Illinois U.S.A.
  • 3123001805 | +1 312-300-1805 Illinois U.S.A.
  • 3123001806 | +1 312-300-1806 Illinois U.S.A.
  • 3123001807 | +1 312-300-1807 Illinois U.S.A.
  • 3123001808 | +1 312-300-1808 Illinois U.S.A.
  • 3123001809 | +1 312-300-1809 Illinois U.S.A.
  • 3123001810 | +1 312-300-1810 Illinois U.S.A.
  • 3123001811 | +1 312-300-1811 Illinois U.S.A.
  • 3123001812 | +1 312-300-1812 Illinois U.S.A.
  • 3123001813 | +1 312-300-1813 Illinois U.S.A.
  • 3123001814 | +1 312-300-1814 Illinois U.S.A.
  • 3123001815 | +1 312-300-1815 Illinois U.S.A.
  • 3123001816 | +1 312-300-1816 Illinois U.S.A.
  • 3123001817 | +1 312-300-1817 Illinois U.S.A.
  • 3123001818 | +1 312-300-1818 Illinois U.S.A.
  • 3123001819 | +1 312-300-1819 Illinois U.S.A.
  • 3123001820 | +1 312-300-1820 Illinois U.S.A.
  • 3123001821 | +1 312-300-1821 Illinois U.S.A.
  • 3123001822 | +1 312-300-1822 Illinois U.S.A.
  • 3123001823 | +1 312-300-1823 Illinois U.S.A.
  • 3123001824 | +1 312-300-1824 Illinois U.S.A.
  • 3123001825 | +1 312-300-1825 Illinois U.S.A.
  • 3123001826 | +1 312-300-1826 Illinois U.S.A.
  • 3123001827 | +1 312-300-1827 Illinois U.S.A.
  • 3123001828 | +1 312-300-1828 Illinois U.S.A.
  • 3123001829 | +1 312-300-1829 Illinois U.S.A.
  • 3123001830 | +1 312-300-1830 Illinois U.S.A.
  • 3123001831 | +1 312-300-1831 Illinois U.S.A.
  • 3123001832 | +1 312-300-1832 Illinois U.S.A.
  • 3123001833 | +1 312-300-1833 Illinois U.S.A.
  • 3123001834 | +1 312-300-1834 Illinois U.S.A.
  • 3123001835 | +1 312-300-1835 Illinois U.S.A.
  • 3123001836 | +1 312-300-1836 Illinois U.S.A.
  • 3123001837 | +1 312-300-1837 Illinois U.S.A.
  • 3123001838 | +1 312-300-1838 Illinois U.S.A.
  • 3123001839 | +1 312-300-1839 Illinois U.S.A.
  • 3123001840 | +1 312-300-1840 Illinois U.S.A.
  • 3123001841 | +1 312-300-1841 Illinois U.S.A.
  • 3123001842 | +1 312-300-1842 Illinois U.S.A.
  • 3123001843 | +1 312-300-1843 Illinois U.S.A.
  • 3123001844 | +1 312-300-1844 Illinois U.S.A.
  • 3123001845 | +1 312-300-1845 Illinois U.S.A.
  • 3123001846 | +1 312-300-1846 Illinois U.S.A.
  • 3123001847 | +1 312-300-1847 Illinois U.S.A.
  • 3123001848 | +1 312-300-1848 Illinois U.S.A.
  • 3123001849 | +1 312-300-1849 Illinois U.S.A.
  • 3123001850 | +1 312-300-1850 Illinois U.S.A.
  • 3123001851 | +1 312-300-1851 Illinois U.S.A.
  • 3123001852 | +1 312-300-1852 Illinois U.S.A.
  • 3123001853 | +1 312-300-1853 Illinois U.S.A.
  • 3123001854 | +1 312-300-1854 Illinois U.S.A.
  • 3123001855 | +1 312-300-1855 Illinois U.S.A.
  • 3123001856 | +1 312-300-1856 Illinois U.S.A.
  • 3123001857 | +1 312-300-1857 Illinois U.S.A.
  • 3123001858 | +1 312-300-1858 Illinois U.S.A.
  • 3123001859 | +1 312-300-1859 Illinois U.S.A.
  • 3123001860 | +1 312-300-1860 Illinois U.S.A.
  • 3123001861 | +1 312-300-1861 Illinois U.S.A.
  • 3123001862 | +1 312-300-1862 Illinois U.S.A.
  • 3123001863 | +1 312-300-1863 Illinois U.S.A.
  • 3123001864 | +1 312-300-1864 Illinois U.S.A.
  • 3123001865 | +1 312-300-1865 Illinois U.S.A.
  • 3123001866 | +1 312-300-1866 Illinois U.S.A.
  • 3123001867 | +1 312-300-1867 Illinois U.S.A.
  • 3123001868 | +1 312-300-1868 Illinois U.S.A.
  • 3123001869 | +1 312-300-1869 Illinois U.S.A.
  • 3123001870 | +1 312-300-1870 Illinois U.S.A.
  • 3123001871 | +1 312-300-1871 Illinois U.S.A.
  • 3123001872 | +1 312-300-1872 Illinois U.S.A.
  • 3123001873 | +1 312-300-1873 Illinois U.S.A.
  • 3123001874 | +1 312-300-1874 Illinois U.S.A.
  • 3123001875 | +1 312-300-1875 Illinois U.S.A.
  • 3123001876 | +1 312-300-1876 Illinois U.S.A.
  • 3123001877 | +1 312-300-1877 Illinois U.S.A.
  • 3123001878 | +1 312-300-1878 Illinois U.S.A.
  • 3123001879 | +1 312-300-1879 Illinois U.S.A.
  • 3123001880 | +1 312-300-1880 Illinois U.S.A.
  • 3123001881 | +1 312-300-1881 Illinois U.S.A.
  • 3123001882 | +1 312-300-1882 Illinois U.S.A.
  • 3123001883 | +1 312-300-1883 Illinois U.S.A.
  • 3123001884 | +1 312-300-1884 Illinois U.S.A.
  • 3123001885 | +1 312-300-1885 Illinois U.S.A.
  • 3123001886 | +1 312-300-1886 Illinois U.S.A.
  • 3123001887 | +1 312-300-1887 Illinois U.S.A.
  • 3123001888 | +1 312-300-1888 Illinois U.S.A.
  • 3123001889 | +1 312-300-1889 Illinois U.S.A.
  • 3123001890 | +1 312-300-1890 Illinois U.S.A.
  • 3123001891 | +1 312-300-1891 Illinois U.S.A.
  • 3123001892 | +1 312-300-1892 Illinois U.S.A.
  • 3123001893 | +1 312-300-1893 Illinois U.S.A.
  • 3123001894 | +1 312-300-1894 Illinois U.S.A.
  • 3123001895 | +1 312-300-1895 Illinois U.S.A.
  • 3123001896 | +1 312-300-1896 Illinois U.S.A.
  • 3123001897 | +1 312-300-1897 Illinois U.S.A.
  • 3123001898 | +1 312-300-1898 Illinois U.S.A.
  • 3123001899 | +1 312-300-1899 Illinois U.S.A.