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).

  • 3127821600 | +1 312-782-1600 Illinois U.S.A.
  • 3127821601 | +1 312-782-1601 Illinois U.S.A.
  • 3127821602 | +1 312-782-1602 Illinois U.S.A.
  • 3127821603 | +1 312-782-1603 Illinois U.S.A.
  • 3127821604 | +1 312-782-1604 Illinois U.S.A.
  • 3127821605 | +1 312-782-1605 Illinois U.S.A.
  • 3127821606 | +1 312-782-1606 Illinois U.S.A.
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  • 3127821608 | +1 312-782-1608 Illinois U.S.A.
  • 3127821609 | +1 312-782-1609 Illinois U.S.A.
  • 3127821610 | +1 312-782-1610 Illinois U.S.A.
  • 3127821611 | +1 312-782-1611 Illinois U.S.A.
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  • 3127821613 | +1 312-782-1613 Illinois U.S.A.
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  • 3127821616 | +1 312-782-1616 Illinois U.S.A.
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  • 3127821618 | +1 312-782-1618 Illinois U.S.A.
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  • 3127821620 | +1 312-782-1620 Illinois U.S.A.
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  • 3127821635 | +1 312-782-1635 Illinois U.S.A.
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  • 3127821663 | +1 312-782-1663 Illinois U.S.A.
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  • 3127821670 | +1 312-782-1670 Illinois U.S.A.
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  • 3127821678 | +1 312-782-1678 Illinois U.S.A.
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  • 3127821680 | +1 312-782-1680 Illinois U.S.A.
  • 3127821681 | +1 312-782-1681 Illinois U.S.A.
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