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).

  • 3123812000 | +1 312-381-2000 Illinois U.S.A.
  • 3123812001 | +1 312-381-2001 Illinois U.S.A.
  • 3123812002 | +1 312-381-2002 Illinois U.S.A.
  • 3123812003 | +1 312-381-2003 Illinois U.S.A.
  • 3123812004 | +1 312-381-2004 Illinois U.S.A.
  • 3123812005 | +1 312-381-2005 Illinois U.S.A.
  • 3123812006 | +1 312-381-2006 Illinois U.S.A.
  • 3123812007 | +1 312-381-2007 Illinois U.S.A.
  • 3123812008 | +1 312-381-2008 Illinois U.S.A.
  • 3123812009 | +1 312-381-2009 Illinois U.S.A.
  • 3123812010 | +1 312-381-2010 Illinois U.S.A.
  • 3123812011 | +1 312-381-2011 Illinois U.S.A.
  • 3123812012 | +1 312-381-2012 Illinois U.S.A.
  • 3123812013 | +1 312-381-2013 Illinois U.S.A.
  • 3123812014 | +1 312-381-2014 Illinois U.S.A.
  • 3123812015 | +1 312-381-2015 Illinois U.S.A.
  • 3123812016 | +1 312-381-2016 Illinois U.S.A.
  • 3123812017 | +1 312-381-2017 Illinois U.S.A.
  • 3123812018 | +1 312-381-2018 Illinois U.S.A.
  • 3123812019 | +1 312-381-2019 Illinois U.S.A.
  • 3123812020 | +1 312-381-2020 Illinois U.S.A.
  • 3123812021 | +1 312-381-2021 Illinois U.S.A.
  • 3123812022 | +1 312-381-2022 Illinois U.S.A.
  • 3123812023 | +1 312-381-2023 Illinois U.S.A.
  • 3123812024 | +1 312-381-2024 Illinois U.S.A.
  • 3123812025 | +1 312-381-2025 Illinois U.S.A.
  • 3123812026 | +1 312-381-2026 Illinois U.S.A.
  • 3123812027 | +1 312-381-2027 Illinois U.S.A.
  • 3123812028 | +1 312-381-2028 Illinois U.S.A.
  • 3123812029 | +1 312-381-2029 Illinois U.S.A.
  • 3123812030 | +1 312-381-2030 Illinois U.S.A.
  • 3123812031 | +1 312-381-2031 Illinois U.S.A.
  • 3123812032 | +1 312-381-2032 Illinois U.S.A.
  • 3123812033 | +1 312-381-2033 Illinois U.S.A.
  • 3123812034 | +1 312-381-2034 Illinois U.S.A.
  • 3123812035 | +1 312-381-2035 Illinois U.S.A.
  • 3123812036 | +1 312-381-2036 Illinois U.S.A.
  • 3123812037 | +1 312-381-2037 Illinois U.S.A.
  • 3123812038 | +1 312-381-2038 Illinois U.S.A.
  • 3123812039 | +1 312-381-2039 Illinois U.S.A.
  • 3123812040 | +1 312-381-2040 Illinois U.S.A.
  • 3123812041 | +1 312-381-2041 Illinois U.S.A.
  • 3123812042 | +1 312-381-2042 Illinois U.S.A.
  • 3123812043 | +1 312-381-2043 Illinois U.S.A.
  • 3123812044 | +1 312-381-2044 Illinois U.S.A.
  • 3123812045 | +1 312-381-2045 Illinois U.S.A.
  • 3123812046 | +1 312-381-2046 Illinois U.S.A.
  • 3123812047 | +1 312-381-2047 Illinois U.S.A.
  • 3123812048 | +1 312-381-2048 Illinois U.S.A.
  • 3123812049 | +1 312-381-2049 Illinois U.S.A.
  • 3123812050 | +1 312-381-2050 Illinois U.S.A.
  • 3123812051 | +1 312-381-2051 Illinois U.S.A.
  • 3123812052 | +1 312-381-2052 Illinois U.S.A.
  • 3123812053 | +1 312-381-2053 Illinois U.S.A.
  • 3123812054 | +1 312-381-2054 Illinois U.S.A.
  • 3123812055 | +1 312-381-2055 Illinois U.S.A.
  • 3123812056 | +1 312-381-2056 Illinois U.S.A.
  • 3123812057 | +1 312-381-2057 Illinois U.S.A.
  • 3123812058 | +1 312-381-2058 Illinois U.S.A.
  • 3123812059 | +1 312-381-2059 Illinois U.S.A.
  • 3123812060 | +1 312-381-2060 Illinois U.S.A.
  • 3123812061 | +1 312-381-2061 Illinois U.S.A.
  • 3123812062 | +1 312-381-2062 Illinois U.S.A.
  • 3123812063 | +1 312-381-2063 Illinois U.S.A.
  • 3123812064 | +1 312-381-2064 Illinois U.S.A.
  • 3123812065 | +1 312-381-2065 Illinois U.S.A.
  • 3123812066 | +1 312-381-2066 Illinois U.S.A.
  • 3123812067 | +1 312-381-2067 Illinois U.S.A.
  • 3123812068 | +1 312-381-2068 Illinois U.S.A.
  • 3123812069 | +1 312-381-2069 Illinois U.S.A.
  • 3123812070 | +1 312-381-2070 Illinois U.S.A.
  • 3123812071 | +1 312-381-2071 Illinois U.S.A.
  • 3123812072 | +1 312-381-2072 Illinois U.S.A.
  • 3123812073 | +1 312-381-2073 Illinois U.S.A.
  • 3123812074 | +1 312-381-2074 Illinois U.S.A.
  • 3123812075 | +1 312-381-2075 Illinois U.S.A.
  • 3123812076 | +1 312-381-2076 Illinois U.S.A.
  • 3123812077 | +1 312-381-2077 Illinois U.S.A.
  • 3123812078 | +1 312-381-2078 Illinois U.S.A.
  • 3123812079 | +1 312-381-2079 Illinois U.S.A.
  • 3123812080 | +1 312-381-2080 Illinois U.S.A.
  • 3123812081 | +1 312-381-2081 Illinois U.S.A.
  • 3123812082 | +1 312-381-2082 Illinois U.S.A.
  • 3123812083 | +1 312-381-2083 Illinois U.S.A.
  • 3123812084 | +1 312-381-2084 Illinois U.S.A.
  • 3123812085 | +1 312-381-2085 Illinois U.S.A.
  • 3123812086 | +1 312-381-2086 Illinois U.S.A.
  • 3123812087 | +1 312-381-2087 Illinois U.S.A.
  • 3123812088 | +1 312-381-2088 Illinois U.S.A.
  • 3123812089 | +1 312-381-2089 Illinois U.S.A.
  • 3123812090 | +1 312-381-2090 Illinois U.S.A.
  • 3123812091 | +1 312-381-2091 Illinois U.S.A.
  • 3123812092 | +1 312-381-2092 Illinois U.S.A.
  • 3123812093 | +1 312-381-2093 Illinois U.S.A.
  • 3123812094 | +1 312-381-2094 Illinois U.S.A.
  • 3123812095 | +1 312-381-2095 Illinois U.S.A.
  • 3123812096 | +1 312-381-2096 Illinois U.S.A.
  • 3123812097 | +1 312-381-2097 Illinois U.S.A.
  • 3123812098 | +1 312-381-2098 Illinois U.S.A.
  • 3123812099 | +1 312-381-2099 Illinois U.S.A.