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).

  • 3125422000 | +1 312-542-2000 Illinois U.S.A.
  • 3125422001 | +1 312-542-2001 Illinois U.S.A.
  • 3125422002 | +1 312-542-2002 Illinois U.S.A.
  • 3125422003 | +1 312-542-2003 Illinois U.S.A.
  • 3125422004 | +1 312-542-2004 Illinois U.S.A.
  • 3125422005 | +1 312-542-2005 Illinois U.S.A.
  • 3125422006 | +1 312-542-2006 Illinois U.S.A.
  • 3125422007 | +1 312-542-2007 Illinois U.S.A.
  • 3125422008 | +1 312-542-2008 Illinois U.S.A.
  • 3125422009 | +1 312-542-2009 Illinois U.S.A.
  • 3125422010 | +1 312-542-2010 Illinois U.S.A.
  • 3125422011 | +1 312-542-2011 Illinois U.S.A.
  • 3125422012 | +1 312-542-2012 Illinois U.S.A.
  • 3125422013 | +1 312-542-2013 Illinois U.S.A.
  • 3125422014 | +1 312-542-2014 Illinois U.S.A.
  • 3125422015 | +1 312-542-2015 Illinois U.S.A.
  • 3125422016 | +1 312-542-2016 Illinois U.S.A.
  • 3125422017 | +1 312-542-2017 Illinois U.S.A.
  • 3125422018 | +1 312-542-2018 Illinois U.S.A.
  • 3125422019 | +1 312-542-2019 Illinois U.S.A.
  • 3125422020 | +1 312-542-2020 Illinois U.S.A.
  • 3125422021 | +1 312-542-2021 Illinois U.S.A.
  • 3125422022 | +1 312-542-2022 Illinois U.S.A.
  • 3125422023 | +1 312-542-2023 Illinois U.S.A.
  • 3125422024 | +1 312-542-2024 Illinois U.S.A.
  • 3125422025 | +1 312-542-2025 Illinois U.S.A.
  • 3125422026 | +1 312-542-2026 Illinois U.S.A.
  • 3125422027 | +1 312-542-2027 Illinois U.S.A.
  • 3125422028 | +1 312-542-2028 Illinois U.S.A.
  • 3125422029 | +1 312-542-2029 Illinois U.S.A.
  • 3125422030 | +1 312-542-2030 Illinois U.S.A.
  • 3125422031 | +1 312-542-2031 Illinois U.S.A.
  • 3125422032 | +1 312-542-2032 Illinois U.S.A.
  • 3125422033 | +1 312-542-2033 Illinois U.S.A.
  • 3125422034 | +1 312-542-2034 Illinois U.S.A.
  • 3125422035 | +1 312-542-2035 Illinois U.S.A.
  • 3125422036 | +1 312-542-2036 Illinois U.S.A.
  • 3125422037 | +1 312-542-2037 Illinois U.S.A.
  • 3125422038 | +1 312-542-2038 Illinois U.S.A.
  • 3125422039 | +1 312-542-2039 Illinois U.S.A.
  • 3125422040 | +1 312-542-2040 Illinois U.S.A.
  • 3125422041 | +1 312-542-2041 Illinois U.S.A.
  • 3125422042 | +1 312-542-2042 Illinois U.S.A.
  • 3125422043 | +1 312-542-2043 Illinois U.S.A.
  • 3125422044 | +1 312-542-2044 Illinois U.S.A.
  • 3125422045 | +1 312-542-2045 Illinois U.S.A.
  • 3125422046 | +1 312-542-2046 Illinois U.S.A.
  • 3125422047 | +1 312-542-2047 Illinois U.S.A.
  • 3125422048 | +1 312-542-2048 Illinois U.S.A.
  • 3125422049 | +1 312-542-2049 Illinois U.S.A.
  • 3125422050 | +1 312-542-2050 Illinois U.S.A.
  • 3125422051 | +1 312-542-2051 Illinois U.S.A.
  • 3125422052 | +1 312-542-2052 Illinois U.S.A.
  • 3125422053 | +1 312-542-2053 Illinois U.S.A.
  • 3125422054 | +1 312-542-2054 Illinois U.S.A.
  • 3125422055 | +1 312-542-2055 Illinois U.S.A.
  • 3125422056 | +1 312-542-2056 Illinois U.S.A.
  • 3125422057 | +1 312-542-2057 Illinois U.S.A.
  • 3125422058 | +1 312-542-2058 Illinois U.S.A.
  • 3125422059 | +1 312-542-2059 Illinois U.S.A.
  • 3125422060 | +1 312-542-2060 Illinois U.S.A.
  • 3125422061 | +1 312-542-2061 Illinois U.S.A.
  • 3125422062 | +1 312-542-2062 Illinois U.S.A.
  • 3125422063 | +1 312-542-2063 Illinois U.S.A.
  • 3125422064 | +1 312-542-2064 Illinois U.S.A.
  • 3125422065 | +1 312-542-2065 Illinois U.S.A.
  • 3125422066 | +1 312-542-2066 Illinois U.S.A.
  • 3125422067 | +1 312-542-2067 Illinois U.S.A.
  • 3125422068 | +1 312-542-2068 Illinois U.S.A.
  • 3125422069 | +1 312-542-2069 Illinois U.S.A.
  • 3125422070 | +1 312-542-2070 Illinois U.S.A.
  • 3125422071 | +1 312-542-2071 Illinois U.S.A.
  • 3125422072 | +1 312-542-2072 Illinois U.S.A.
  • 3125422073 | +1 312-542-2073 Illinois U.S.A.
  • 3125422074 | +1 312-542-2074 Illinois U.S.A.
  • 3125422075 | +1 312-542-2075 Illinois U.S.A.
  • 3125422076 | +1 312-542-2076 Illinois U.S.A.
  • 3125422077 | +1 312-542-2077 Illinois U.S.A.
  • 3125422078 | +1 312-542-2078 Illinois U.S.A.
  • 3125422079 | +1 312-542-2079 Illinois U.S.A.
  • 3125422080 | +1 312-542-2080 Illinois U.S.A.
  • 3125422081 | +1 312-542-2081 Illinois U.S.A.
  • 3125422082 | +1 312-542-2082 Illinois U.S.A.
  • 3125422083 | +1 312-542-2083 Illinois U.S.A.
  • 3125422084 | +1 312-542-2084 Illinois U.S.A.
  • 3125422085 | +1 312-542-2085 Illinois U.S.A.
  • 3125422086 | +1 312-542-2086 Illinois U.S.A.
  • 3125422087 | +1 312-542-2087 Illinois U.S.A.
  • 3125422088 | +1 312-542-2088 Illinois U.S.A.
  • 3125422089 | +1 312-542-2089 Illinois U.S.A.
  • 3125422090 | +1 312-542-2090 Illinois U.S.A.
  • 3125422091 | +1 312-542-2091 Illinois U.S.A.
  • 3125422092 | +1 312-542-2092 Illinois U.S.A.
  • 3125422093 | +1 312-542-2093 Illinois U.S.A.
  • 3125422094 | +1 312-542-2094 Illinois U.S.A.
  • 3125422095 | +1 312-542-2095 Illinois U.S.A.
  • 3125422096 | +1 312-542-2096 Illinois U.S.A.
  • 3125422097 | +1 312-542-2097 Illinois U.S.A.
  • 3125422098 | +1 312-542-2098 Illinois U.S.A.
  • 3125422099 | +1 312-542-2099 Illinois U.S.A.