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).

  • 3127241400 | +1 312-724-1400 Illinois U.S.A.
  • 3127241401 | +1 312-724-1401 Illinois U.S.A.
  • 3127241402 | +1 312-724-1402 Illinois U.S.A.
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  • 3127241411 | +1 312-724-1411 Illinois U.S.A.
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  • 3127241424 | +1 312-724-1424 Illinois U.S.A.
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  • 3127241431 | +1 312-724-1431 Illinois U.S.A.
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  • 3127241448 | +1 312-724-1448 Illinois U.S.A.
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  • 3127241451 | +1 312-724-1451 Illinois U.S.A.
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  • 3127241455 | +1 312-724-1455 Illinois U.S.A.
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  • 3127241467 | +1 312-724-1467 Illinois U.S.A.
  • 3127241468 | +1 312-724-1468 Illinois U.S.A.
  • 3127241469 | +1 312-724-1469 Illinois U.S.A.
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  • 3127241471 | +1 312-724-1471 Illinois U.S.A.
  • 3127241472 | +1 312-724-1472 Illinois U.S.A.
  • 3127241473 | +1 312-724-1473 Illinois U.S.A.
  • 3127241474 | +1 312-724-1474 Illinois U.S.A.
  • 3127241475 | +1 312-724-1475 Illinois U.S.A.
  • 3127241476 | +1 312-724-1476 Illinois U.S.A.
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  • 3127241478 | +1 312-724-1478 Illinois U.S.A.
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  • 3127241494 | +1 312-724-1494 Illinois U.S.A.
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  • 3127241497 | +1 312-724-1497 Illinois U.S.A.
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  • 3127241499 | +1 312-724-1499 Illinois U.S.A.