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).

  • 3128502000 | +1 312-850-2000 Illinois U.S.A.
  • 3128502001 | +1 312-850-2001 Illinois U.S.A.
  • 3128502002 | +1 312-850-2002 Illinois U.S.A.
  • 3128502003 | +1 312-850-2003 Illinois U.S.A.
  • 3128502004 | +1 312-850-2004 Illinois U.S.A.
  • 3128502005 | +1 312-850-2005 Illinois U.S.A.
  • 3128502006 | +1 312-850-2006 Illinois U.S.A.
  • 3128502007 | +1 312-850-2007 Illinois U.S.A.
  • 3128502008 | +1 312-850-2008 Illinois U.S.A.
  • 3128502009 | +1 312-850-2009 Illinois U.S.A.
  • 3128502010 | +1 312-850-2010 Illinois U.S.A.
  • 3128502011 | +1 312-850-2011 Illinois U.S.A.
  • 3128502012 | +1 312-850-2012 Illinois U.S.A.
  • 3128502013 | +1 312-850-2013 Illinois U.S.A.
  • 3128502014 | +1 312-850-2014 Illinois U.S.A.
  • 3128502015 | +1 312-850-2015 Illinois U.S.A.
  • 3128502016 | +1 312-850-2016 Illinois U.S.A.
  • 3128502017 | +1 312-850-2017 Illinois U.S.A.
  • 3128502018 | +1 312-850-2018 Illinois U.S.A.
  • 3128502019 | +1 312-850-2019 Illinois U.S.A.
  • 3128502020 | +1 312-850-2020 Illinois U.S.A.
  • 3128502021 | +1 312-850-2021 Illinois U.S.A.
  • 3128502022 | +1 312-850-2022 Illinois U.S.A.
  • 3128502023 | +1 312-850-2023 Illinois U.S.A.
  • 3128502024 | +1 312-850-2024 Illinois U.S.A.
  • 3128502025 | +1 312-850-2025 Illinois U.S.A.
  • 3128502026 | +1 312-850-2026 Illinois U.S.A.
  • 3128502027 | +1 312-850-2027 Illinois U.S.A.
  • 3128502028 | +1 312-850-2028 Illinois U.S.A.
  • 3128502029 | +1 312-850-2029 Illinois U.S.A.
  • 3128502030 | +1 312-850-2030 Illinois U.S.A.
  • 3128502031 | +1 312-850-2031 Illinois U.S.A.
  • 3128502032 | +1 312-850-2032 Illinois U.S.A.
  • 3128502033 | +1 312-850-2033 Illinois U.S.A.
  • 3128502034 | +1 312-850-2034 Illinois U.S.A.
  • 3128502035 | +1 312-850-2035 Illinois U.S.A.
  • 3128502036 | +1 312-850-2036 Illinois U.S.A.
  • 3128502037 | +1 312-850-2037 Illinois U.S.A.
  • 3128502038 | +1 312-850-2038 Illinois U.S.A.
  • 3128502039 | +1 312-850-2039 Illinois U.S.A.
  • 3128502040 | +1 312-850-2040 Illinois U.S.A.
  • 3128502041 | +1 312-850-2041 Illinois U.S.A.
  • 3128502042 | +1 312-850-2042 Illinois U.S.A.
  • 3128502043 | +1 312-850-2043 Illinois U.S.A.
  • 3128502044 | +1 312-850-2044 Illinois U.S.A.
  • 3128502045 | +1 312-850-2045 Illinois U.S.A.
  • 3128502046 | +1 312-850-2046 Illinois U.S.A.
  • 3128502047 | +1 312-850-2047 Illinois U.S.A.
  • 3128502048 | +1 312-850-2048 Illinois U.S.A.
  • 3128502049 | +1 312-850-2049 Illinois U.S.A.
  • 3128502050 | +1 312-850-2050 Illinois U.S.A.
  • 3128502051 | +1 312-850-2051 Illinois U.S.A.
  • 3128502052 | +1 312-850-2052 Illinois U.S.A.
  • 3128502053 | +1 312-850-2053 Illinois U.S.A.
  • 3128502054 | +1 312-850-2054 Illinois U.S.A.
  • 3128502055 | +1 312-850-2055 Illinois U.S.A.
  • 3128502056 | +1 312-850-2056 Illinois U.S.A.
  • 3128502057 | +1 312-850-2057 Illinois U.S.A.
  • 3128502058 | +1 312-850-2058 Illinois U.S.A.
  • 3128502059 | +1 312-850-2059 Illinois U.S.A.
  • 3128502060 | +1 312-850-2060 Illinois U.S.A.
  • 3128502061 | +1 312-850-2061 Illinois U.S.A.
  • 3128502062 | +1 312-850-2062 Illinois U.S.A.
  • 3128502063 | +1 312-850-2063 Illinois U.S.A.
  • 3128502064 | +1 312-850-2064 Illinois U.S.A.
  • 3128502065 | +1 312-850-2065 Illinois U.S.A.
  • 3128502066 | +1 312-850-2066 Illinois U.S.A.
  • 3128502067 | +1 312-850-2067 Illinois U.S.A.
  • 3128502068 | +1 312-850-2068 Illinois U.S.A.
  • 3128502069 | +1 312-850-2069 Illinois U.S.A.
  • 3128502070 | +1 312-850-2070 Illinois U.S.A.
  • 3128502071 | +1 312-850-2071 Illinois U.S.A.
  • 3128502072 | +1 312-850-2072 Illinois U.S.A.
  • 3128502073 | +1 312-850-2073 Illinois U.S.A.
  • 3128502074 | +1 312-850-2074 Illinois U.S.A.
  • 3128502075 | +1 312-850-2075 Illinois U.S.A.
  • 3128502076 | +1 312-850-2076 Illinois U.S.A.
  • 3128502077 | +1 312-850-2077 Illinois U.S.A.
  • 3128502078 | +1 312-850-2078 Illinois U.S.A.
  • 3128502079 | +1 312-850-2079 Illinois U.S.A.
  • 3128502080 | +1 312-850-2080 Illinois U.S.A.
  • 3128502081 | +1 312-850-2081 Illinois U.S.A.
  • 3128502082 | +1 312-850-2082 Illinois U.S.A.
  • 3128502083 | +1 312-850-2083 Illinois U.S.A.
  • 3128502084 | +1 312-850-2084 Illinois U.S.A.
  • 3128502085 | +1 312-850-2085 Illinois U.S.A.
  • 3128502086 | +1 312-850-2086 Illinois U.S.A.
  • 3128502087 | +1 312-850-2087 Illinois U.S.A.
  • 3128502088 | +1 312-850-2088 Illinois U.S.A.
  • 3128502089 | +1 312-850-2089 Illinois U.S.A.
  • 3128502090 | +1 312-850-2090 Illinois U.S.A.
  • 3128502091 | +1 312-850-2091 Illinois U.S.A.
  • 3128502092 | +1 312-850-2092 Illinois U.S.A.
  • 3128502093 | +1 312-850-2093 Illinois U.S.A.
  • 3128502094 | +1 312-850-2094 Illinois U.S.A.
  • 3128502095 | +1 312-850-2095 Illinois U.S.A.
  • 3128502096 | +1 312-850-2096 Illinois U.S.A.
  • 3128502097 | +1 312-850-2097 Illinois U.S.A.
  • 3128502098 | +1 312-850-2098 Illinois U.S.A.
  • 3128502099 | +1 312-850-2099 Illinois U.S.A.