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).

  • 3127371400 | +1 312-737-1400 Illinois U.S.A.
  • 3127371401 | +1 312-737-1401 Illinois U.S.A.
  • 3127371402 | +1 312-737-1402 Illinois U.S.A.
  • 3127371403 | +1 312-737-1403 Illinois U.S.A.
  • 3127371404 | +1 312-737-1404 Illinois U.S.A.
  • 3127371405 | +1 312-737-1405 Illinois U.S.A.
  • 3127371406 | +1 312-737-1406 Illinois U.S.A.
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  • 3127371408 | +1 312-737-1408 Illinois U.S.A.
  • 3127371409 | +1 312-737-1409 Illinois U.S.A.
  • 3127371410 | +1 312-737-1410 Illinois U.S.A.
  • 3127371411 | +1 312-737-1411 Illinois U.S.A.
  • 3127371412 | +1 312-737-1412 Illinois U.S.A.
  • 3127371413 | +1 312-737-1413 Illinois U.S.A.
  • 3127371414 | +1 312-737-1414 Illinois U.S.A.
  • 3127371415 | +1 312-737-1415 Illinois U.S.A.
  • 3127371416 | +1 312-737-1416 Illinois U.S.A.
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  • 3127371418 | +1 312-737-1418 Illinois U.S.A.
  • 3127371419 | +1 312-737-1419 Illinois U.S.A.
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  • 3127371425 | +1 312-737-1425 Illinois U.S.A.
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  • 3127371440 | +1 312-737-1440 Illinois U.S.A.
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  • 3127371446 | +1 312-737-1446 Illinois U.S.A.
  • 3127371447 | +1 312-737-1447 Illinois U.S.A.
  • 3127371448 | +1 312-737-1448 Illinois U.S.A.
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  • 3127371450 | +1 312-737-1450 Illinois U.S.A.
  • 3127371451 | +1 312-737-1451 Illinois U.S.A.
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  • 3127371453 | +1 312-737-1453 Illinois U.S.A.
  • 3127371454 | +1 312-737-1454 Illinois U.S.A.
  • 3127371455 | +1 312-737-1455 Illinois U.S.A.
  • 3127371456 | +1 312-737-1456 Illinois U.S.A.
  • 3127371457 | +1 312-737-1457 Illinois U.S.A.
  • 3127371458 | +1 312-737-1458 Illinois U.S.A.
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  • 3127371460 | +1 312-737-1460 Illinois U.S.A.
  • 3127371461 | +1 312-737-1461 Illinois U.S.A.
  • 3127371462 | +1 312-737-1462 Illinois U.S.A.
  • 3127371463 | +1 312-737-1463 Illinois U.S.A.
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  • 3127371466 | +1 312-737-1466 Illinois U.S.A.
  • 3127371467 | +1 312-737-1467 Illinois U.S.A.
  • 3127371468 | +1 312-737-1468 Illinois U.S.A.
  • 3127371469 | +1 312-737-1469 Illinois U.S.A.
  • 3127371470 | +1 312-737-1470 Illinois U.S.A.
  • 3127371471 | +1 312-737-1471 Illinois U.S.A.
  • 3127371472 | +1 312-737-1472 Illinois U.S.A.
  • 3127371473 | +1 312-737-1473 Illinois U.S.A.
  • 3127371474 | +1 312-737-1474 Illinois U.S.A.
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  • 3127371476 | +1 312-737-1476 Illinois U.S.A.
  • 3127371477 | +1 312-737-1477 Illinois U.S.A.
  • 3127371478 | +1 312-737-1478 Illinois U.S.A.
  • 3127371479 | +1 312-737-1479 Illinois U.S.A.
  • 3127371480 | +1 312-737-1480 Illinois U.S.A.
  • 3127371481 | +1 312-737-1481 Illinois U.S.A.
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  • 3127371496 | +1 312-737-1496 Illinois U.S.A.
  • 3127371497 | +1 312-737-1497 Illinois U.S.A.
  • 3127371498 | +1 312-737-1498 Illinois U.S.A.
  • 3127371499 | +1 312-737-1499 Illinois U.S.A.