City of Chicago


815 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).

  • 8155728100 | +1 815-572-8100 Illinois U.S.A.
  • 8155728101 | +1 815-572-8101 Illinois U.S.A.
  • 8155728102 | +1 815-572-8102 Illinois U.S.A.
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  • 8155728110 | +1 815-572-8110 Illinois U.S.A.
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  • 8155728168 | +1 815-572-8168 Illinois U.S.A.
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  • 8155728174 | +1 815-572-8174 Illinois U.S.A.
  • 8155728175 | +1 815-572-8175 Illinois U.S.A.
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  • 8155728194 | +1 815-572-8194 Illinois U.S.A.
  • 8155728195 | +1 815-572-8195 Illinois U.S.A.
  • 8155728196 | +1 815-572-8196 Illinois U.S.A.
  • 8155728197 | +1 815-572-8197 Illinois U.S.A.
  • 8155728198 | +1 815-572-8198 Illinois U.S.A.
  • 8155728199 | +1 815-572-8199 Illinois U.S.A.