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).

  • 3124721500 | +1 312-472-1500 Illinois U.S.A.
  • 3124721501 | +1 312-472-1501 Illinois U.S.A.
  • 3124721502 | +1 312-472-1502 Illinois U.S.A.
  • 3124721503 | +1 312-472-1503 Illinois U.S.A.
  • 3124721504 | +1 312-472-1504 Illinois U.S.A.
  • 3124721505 | +1 312-472-1505 Illinois U.S.A.
  • 3124721506 | +1 312-472-1506 Illinois U.S.A.
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  • 3124721508 | +1 312-472-1508 Illinois U.S.A.
  • 3124721509 | +1 312-472-1509 Illinois U.S.A.
  • 3124721510 | +1 312-472-1510 Illinois U.S.A.
  • 3124721511 | +1 312-472-1511 Illinois U.S.A.
  • 3124721512 | +1 312-472-1512 Illinois U.S.A.
  • 3124721513 | +1 312-472-1513 Illinois U.S.A.
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  • 3124721515 | +1 312-472-1515 Illinois U.S.A.
  • 3124721516 | +1 312-472-1516 Illinois U.S.A.
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  • 3124721518 | +1 312-472-1518 Illinois U.S.A.
  • 3124721519 | +1 312-472-1519 Illinois U.S.A.
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  • 3124721540 | +1 312-472-1540 Illinois U.S.A.
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  • 3124721557 | +1 312-472-1557 Illinois U.S.A.
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  • 3124721560 | +1 312-472-1560 Illinois U.S.A.
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  • 3124721570 | +1 312-472-1570 Illinois U.S.A.
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  • 3124721573 | +1 312-472-1573 Illinois U.S.A.
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  • 3124721578 | +1 312-472-1578 Illinois U.S.A.
  • 3124721579 | +1 312-472-1579 Illinois U.S.A.
  • 3124721580 | +1 312-472-1580 Illinois U.S.A.
  • 3124721581 | +1 312-472-1581 Illinois U.S.A.
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  • 3124721586 | +1 312-472-1586 Illinois U.S.A.
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  • 3124721598 | +1 312-472-1598 Illinois U.S.A.
  • 3124721599 | +1 312-472-1599 Illinois U.S.A.