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).

  • 3127390100 | +1 312-739-0100 Illinois U.S.A.
  • 3127390101 | +1 312-739-0101 Illinois U.S.A.
  • 3127390102 | +1 312-739-0102 Illinois U.S.A.
  • 3127390103 | +1 312-739-0103 Illinois U.S.A.
  • 3127390104 | +1 312-739-0104 Illinois U.S.A.
  • 3127390105 | +1 312-739-0105 Illinois U.S.A.
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  • 3127390107 | +1 312-739-0107 Illinois U.S.A.
  • 3127390108 | +1 312-739-0108 Illinois U.S.A.
  • 3127390109 | +1 312-739-0109 Illinois U.S.A.
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  • 3127390111 | +1 312-739-0111 Illinois U.S.A.
  • 3127390112 | +1 312-739-0112 Illinois U.S.A.
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  • 3127390114 | +1 312-739-0114 Illinois U.S.A.
  • 3127390115 | +1 312-739-0115 Illinois U.S.A.
  • 3127390116 | +1 312-739-0116 Illinois U.S.A.
  • 3127390117 | +1 312-739-0117 Illinois U.S.A.
  • 3127390118 | +1 312-739-0118 Illinois U.S.A.
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  • 3127390120 | +1 312-739-0120 Illinois U.S.A.
  • 3127390121 | +1 312-739-0121 Illinois U.S.A.
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  • 3127390123 | +1 312-739-0123 Illinois U.S.A.
  • 3127390124 | +1 312-739-0124 Illinois U.S.A.
  • 3127390125 | +1 312-739-0125 Illinois U.S.A.
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  • 3127390166 | +1 312-739-0166 Illinois U.S.A.
  • 3127390167 | +1 312-739-0167 Illinois U.S.A.
  • 3127390168 | +1 312-739-0168 Illinois U.S.A.
  • 3127390169 | +1 312-739-0169 Illinois U.S.A.
  • 3127390170 | +1 312-739-0170 Illinois U.S.A.
  • 3127390171 | +1 312-739-0171 Illinois U.S.A.
  • 3127390172 | +1 312-739-0172 Illinois U.S.A.
  • 3127390173 | +1 312-739-0173 Illinois U.S.A.
  • 3127390174 | +1 312-739-0174 Illinois U.S.A.
  • 3127390175 | +1 312-739-0175 Illinois U.S.A.
  • 3127390176 | +1 312-739-0176 Illinois U.S.A.
  • 3127390177 | +1 312-739-0177 Illinois U.S.A.
  • 3127390178 | +1 312-739-0178 Illinois U.S.A.
  • 3127390179 | +1 312-739-0179 Illinois U.S.A.
  • 3127390180 | +1 312-739-0180 Illinois U.S.A.
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  • 3127390194 | +1 312-739-0194 Illinois U.S.A.
  • 3127390195 | +1 312-739-0195 Illinois U.S.A.
  • 3127390196 | +1 312-739-0196 Illinois U.S.A.
  • 3127390197 | +1 312-739-0197 Illinois U.S.A.
  • 3127390198 | +1 312-739-0198 Illinois U.S.A.
  • 3127390199 | +1 312-739-0199 Illinois U.S.A.