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).

  • 3129431500 | +1 312-943-1500 Illinois U.S.A.
  • 3129431501 | +1 312-943-1501 Illinois U.S.A.
  • 3129431502 | +1 312-943-1502 Illinois U.S.A.
  • 3129431503 | +1 312-943-1503 Illinois U.S.A.
  • 3129431504 | +1 312-943-1504 Illinois U.S.A.
  • 3129431505 | +1 312-943-1505 Illinois U.S.A.
  • 3129431506 | +1 312-943-1506 Illinois U.S.A.
  • 3129431507 | +1 312-943-1507 Illinois U.S.A.
  • 3129431508 | +1 312-943-1508 Illinois U.S.A.
  • 3129431509 | +1 312-943-1509 Illinois U.S.A.
  • 3129431510 | +1 312-943-1510 Illinois U.S.A.
  • 3129431511 | +1 312-943-1511 Illinois U.S.A.
  • 3129431512 | +1 312-943-1512 Illinois U.S.A.
  • 3129431513 | +1 312-943-1513 Illinois U.S.A.
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  • 3129431518 | +1 312-943-1518 Illinois U.S.A.
  • 3129431519 | +1 312-943-1519 Illinois U.S.A.
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  • 3129431523 | +1 312-943-1523 Illinois U.S.A.
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  • 3129431531 | +1 312-943-1531 Illinois U.S.A.
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  • 3129431543 | +1 312-943-1543 Illinois U.S.A.
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  • 3129431545 | +1 312-943-1545 Illinois U.S.A.
  • 3129431546 | +1 312-943-1546 Illinois U.S.A.
  • 3129431547 | +1 312-943-1547 Illinois U.S.A.
  • 3129431548 | +1 312-943-1548 Illinois U.S.A.
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  • 3129431551 | +1 312-943-1551 Illinois U.S.A.
  • 3129431552 | +1 312-943-1552 Illinois U.S.A.
  • 3129431553 | +1 312-943-1553 Illinois U.S.A.
  • 3129431554 | +1 312-943-1554 Illinois U.S.A.
  • 3129431555 | +1 312-943-1555 Illinois U.S.A.
  • 3129431556 | +1 312-943-1556 Illinois U.S.A.
  • 3129431557 | +1 312-943-1557 Illinois U.S.A.
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  • 3129431564 | +1 312-943-1564 Illinois U.S.A.
  • 3129431565 | +1 312-943-1565 Illinois U.S.A.
  • 3129431566 | +1 312-943-1566 Illinois U.S.A.
  • 3129431567 | +1 312-943-1567 Illinois U.S.A.
  • 3129431568 | +1 312-943-1568 Illinois U.S.A.
  • 3129431569 | +1 312-943-1569 Illinois U.S.A.
  • 3129431570 | +1 312-943-1570 Illinois U.S.A.
  • 3129431571 | +1 312-943-1571 Illinois U.S.A.
  • 3129431572 | +1 312-943-1572 Illinois U.S.A.
  • 3129431573 | +1 312-943-1573 Illinois U.S.A.
  • 3129431574 | +1 312-943-1574 Illinois U.S.A.
  • 3129431575 | +1 312-943-1575 Illinois U.S.A.
  • 3129431576 | +1 312-943-1576 Illinois U.S.A.
  • 3129431577 | +1 312-943-1577 Illinois U.S.A.
  • 3129431578 | +1 312-943-1578 Illinois U.S.A.
  • 3129431579 | +1 312-943-1579 Illinois U.S.A.
  • 3129431580 | +1 312-943-1580 Illinois U.S.A.
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  • 3129431592 | +1 312-943-1592 Illinois U.S.A.
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  • 3129431594 | +1 312-943-1594 Illinois U.S.A.
  • 3129431595 | +1 312-943-1595 Illinois U.S.A.
  • 3129431596 | +1 312-943-1596 Illinois U.S.A.
  • 3129431597 | +1 312-943-1597 Illinois U.S.A.
  • 3129431598 | +1 312-943-1598 Illinois U.S.A.
  • 3129431599 | +1 312-943-1599 Illinois U.S.A.