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).

  • 8155721200 | +1 815-572-1200 Illinois U.S.A.
  • 8155721201 | +1 815-572-1201 Illinois U.S.A.
  • 8155721202 | +1 815-572-1202 Illinois U.S.A.
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  • 8155721234 | +1 815-572-1234 Illinois U.S.A.
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  • 8155721274 | +1 815-572-1274 Illinois U.S.A.
  • 8155721275 | +1 815-572-1275 Illinois U.S.A.
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  • 8155721278 | +1 815-572-1278 Illinois U.S.A.
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  • 8155721294 | +1 815-572-1294 Illinois U.S.A.
  • 8155721295 | +1 815-572-1295 Illinois U.S.A.
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  • 8155721297 | +1 815-572-1297 Illinois U.S.A.
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  • 8155721299 | +1 815-572-1299 Illinois U.S.A.