CitysDirectory

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).

  • 3124212000 | +1 312-421-2000 Illinois U.S.A.
  • 3124212001 | +1 312-421-2001 Illinois U.S.A.
  • 3124212002 | +1 312-421-2002 Illinois U.S.A.
  • 3124212003 | +1 312-421-2003 Illinois U.S.A.
  • 3124212004 | +1 312-421-2004 Illinois U.S.A.
  • 3124212005 | +1 312-421-2005 Illinois U.S.A.
  • 3124212006 | +1 312-421-2006 Illinois U.S.A.
  • 3124212007 | +1 312-421-2007 Illinois U.S.A.
  • 3124212008 | +1 312-421-2008 Illinois U.S.A.
  • 3124212009 | +1 312-421-2009 Illinois U.S.A.
  • 3124212010 | +1 312-421-2010 Illinois U.S.A.
  • 3124212011 | +1 312-421-2011 Illinois U.S.A.
  • 3124212012 | +1 312-421-2012 Illinois U.S.A.
  • 3124212013 | +1 312-421-2013 Illinois U.S.A.
  • 3124212014 | +1 312-421-2014 Illinois U.S.A.
  • 3124212015 | +1 312-421-2015 Illinois U.S.A.
  • 3124212016 | +1 312-421-2016 Illinois U.S.A.
  • 3124212017 | +1 312-421-2017 Illinois U.S.A.
  • 3124212018 | +1 312-421-2018 Illinois U.S.A.
  • 3124212019 | +1 312-421-2019 Illinois U.S.A.
  • 3124212020 | +1 312-421-2020 Illinois U.S.A.
  • 3124212021 | +1 312-421-2021 Illinois U.S.A.
  • 3124212022 | +1 312-421-2022 Illinois U.S.A.
  • 3124212023 | +1 312-421-2023 Illinois U.S.A.
  • 3124212024 | +1 312-421-2024 Illinois U.S.A.
  • 3124212025 | +1 312-421-2025 Illinois U.S.A.
  • 3124212026 | +1 312-421-2026 Illinois U.S.A.
  • 3124212027 | +1 312-421-2027 Illinois U.S.A.
  • 3124212028 | +1 312-421-2028 Illinois U.S.A.
  • 3124212029 | +1 312-421-2029 Illinois U.S.A.
  • 3124212030 | +1 312-421-2030 Illinois U.S.A.
  • 3124212031 | +1 312-421-2031 Illinois U.S.A.
  • 3124212032 | +1 312-421-2032 Illinois U.S.A.
  • 3124212033 | +1 312-421-2033 Illinois U.S.A.
  • 3124212034 | +1 312-421-2034 Illinois U.S.A.
  • 3124212035 | +1 312-421-2035 Illinois U.S.A.
  • 3124212036 | +1 312-421-2036 Illinois U.S.A.
  • 3124212037 | +1 312-421-2037 Illinois U.S.A.
  • 3124212038 | +1 312-421-2038 Illinois U.S.A.
  • 3124212039 | +1 312-421-2039 Illinois U.S.A.
  • 3124212040 | +1 312-421-2040 Illinois U.S.A.
  • 3124212041 | +1 312-421-2041 Illinois U.S.A.
  • 3124212042 | +1 312-421-2042 Illinois U.S.A.
  • 3124212043 | +1 312-421-2043 Illinois U.S.A.
  • 3124212044 | +1 312-421-2044 Illinois U.S.A.
  • 3124212045 | +1 312-421-2045 Illinois U.S.A.
  • 3124212046 | +1 312-421-2046 Illinois U.S.A.
  • 3124212047 | +1 312-421-2047 Illinois U.S.A.
  • 3124212048 | +1 312-421-2048 Illinois U.S.A.
  • 3124212049 | +1 312-421-2049 Illinois U.S.A.
  • 3124212050 | +1 312-421-2050 Illinois U.S.A.
  • 3124212051 | +1 312-421-2051 Illinois U.S.A.
  • 3124212052 | +1 312-421-2052 Illinois U.S.A.
  • 3124212053 | +1 312-421-2053 Illinois U.S.A.
  • 3124212054 | +1 312-421-2054 Illinois U.S.A.
  • 3124212055 | +1 312-421-2055 Illinois U.S.A.
  • 3124212056 | +1 312-421-2056 Illinois U.S.A.
  • 3124212057 | +1 312-421-2057 Illinois U.S.A.
  • 3124212058 | +1 312-421-2058 Illinois U.S.A.
  • 3124212059 | +1 312-421-2059 Illinois U.S.A.
  • 3124212060 | +1 312-421-2060 Illinois U.S.A.
  • 3124212061 | +1 312-421-2061 Illinois U.S.A.
  • 3124212062 | +1 312-421-2062 Illinois U.S.A.
  • 3124212063 | +1 312-421-2063 Illinois U.S.A.
  • 3124212064 | +1 312-421-2064 Illinois U.S.A.
  • 3124212065 | +1 312-421-2065 Illinois U.S.A.
  • 3124212066 | +1 312-421-2066 Illinois U.S.A.
  • 3124212067 | +1 312-421-2067 Illinois U.S.A.
  • 3124212068 | +1 312-421-2068 Illinois U.S.A.
  • 3124212069 | +1 312-421-2069 Illinois U.S.A.
  • 3124212070 | +1 312-421-2070 Illinois U.S.A.
  • 3124212071 | +1 312-421-2071 Illinois U.S.A.
  • 3124212072 | +1 312-421-2072 Illinois U.S.A.
  • 3124212073 | +1 312-421-2073 Illinois U.S.A.
  • 3124212074 | +1 312-421-2074 Illinois U.S.A.
  • 3124212075 | +1 312-421-2075 Illinois U.S.A.
  • 3124212076 | +1 312-421-2076 Illinois U.S.A.
  • 3124212077 | +1 312-421-2077 Illinois U.S.A.
  • 3124212078 | +1 312-421-2078 Illinois U.S.A.
  • 3124212079 | +1 312-421-2079 Illinois U.S.A.
  • 3124212080 | +1 312-421-2080 Illinois U.S.A.
  • 3124212081 | +1 312-421-2081 Illinois U.S.A.
  • 3124212082 | +1 312-421-2082 Illinois U.S.A.
  • 3124212083 | +1 312-421-2083 Illinois U.S.A.
  • 3124212084 | +1 312-421-2084 Illinois U.S.A.
  • 3124212085 | +1 312-421-2085 Illinois U.S.A.
  • 3124212086 | +1 312-421-2086 Illinois U.S.A.
  • 3124212087 | +1 312-421-2087 Illinois U.S.A.
  • 3124212088 | +1 312-421-2088 Illinois U.S.A.
  • 3124212089 | +1 312-421-2089 Illinois U.S.A.
  • 3124212090 | +1 312-421-2090 Illinois U.S.A.
  • 3124212091 | +1 312-421-2091 Illinois U.S.A.
  • 3124212092 | +1 312-421-2092 Illinois U.S.A.
  • 3124212093 | +1 312-421-2093 Illinois U.S.A.
  • 3124212094 | +1 312-421-2094 Illinois U.S.A.
  • 3124212095 | +1 312-421-2095 Illinois U.S.A.
  • 3124212096 | +1 312-421-2096 Illinois U.S.A.
  • 3124212097 | +1 312-421-2097 Illinois U.S.A.
  • 3124212098 | +1 312-421-2098 Illinois U.S.A.
  • 3124212099 | +1 312-421-2099 Illinois U.S.A.

    • Complete Phone Number

    e.g. 111-222-3333

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