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).

  • 3123371400 | +1 312-337-1400 Illinois U.S.A.
  • 3123371401 | +1 312-337-1401 Illinois U.S.A.
  • 3123371402 | +1 312-337-1402 Illinois U.S.A.
  • 3123371403 | +1 312-337-1403 Illinois U.S.A.
  • 3123371404 | +1 312-337-1404 Illinois U.S.A.
  • 3123371405 | +1 312-337-1405 Illinois U.S.A.
  • 3123371406 | +1 312-337-1406 Illinois U.S.A.
  • 3123371407 | +1 312-337-1407 Illinois U.S.A.
  • 3123371408 | +1 312-337-1408 Illinois U.S.A.
  • 3123371409 | +1 312-337-1409 Illinois U.S.A.
  • 3123371410 | +1 312-337-1410 Illinois U.S.A.
  • 3123371411 | +1 312-337-1411 Illinois U.S.A.
  • 3123371412 | +1 312-337-1412 Illinois U.S.A.
  • 3123371413 | +1 312-337-1413 Illinois U.S.A.
  • 3123371414 | +1 312-337-1414 Illinois U.S.A.
  • 3123371415 | +1 312-337-1415 Illinois U.S.A.
  • 3123371416 | +1 312-337-1416 Illinois U.S.A.
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  • 3123371418 | +1 312-337-1418 Illinois U.S.A.
  • 3123371419 | +1 312-337-1419 Illinois U.S.A.
  • 3123371420 | +1 312-337-1420 Illinois U.S.A.
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  • 3123371422 | +1 312-337-1422 Illinois U.S.A.
  • 3123371423 | +1 312-337-1423 Illinois U.S.A.
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  • 3123371425 | +1 312-337-1425 Illinois U.S.A.
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  • 3123371428 | +1 312-337-1428 Illinois U.S.A.
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  • 3123371430 | +1 312-337-1430 Illinois U.S.A.
  • 3123371431 | +1 312-337-1431 Illinois U.S.A.
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  • 3123371433 | +1 312-337-1433 Illinois U.S.A.
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  • 3123371435 | +1 312-337-1435 Illinois U.S.A.
  • 3123371436 | +1 312-337-1436 Illinois U.S.A.
  • 3123371437 | +1 312-337-1437 Illinois U.S.A.
  • 3123371438 | +1 312-337-1438 Illinois U.S.A.
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  • 3123371440 | +1 312-337-1440 Illinois U.S.A.
  • 3123371441 | +1 312-337-1441 Illinois U.S.A.
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  • 3123371448 | +1 312-337-1448 Illinois U.S.A.
  • 3123371449 | +1 312-337-1449 Illinois U.S.A.
  • 3123371450 | +1 312-337-1450 Illinois U.S.A.
  • 3123371451 | +1 312-337-1451 Illinois U.S.A.
  • 3123371452 | +1 312-337-1452 Illinois U.S.A.
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  • 3123371455 | +1 312-337-1455 Illinois U.S.A.
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  • 3123371457 | +1 312-337-1457 Illinois U.S.A.
  • 3123371458 | +1 312-337-1458 Illinois U.S.A.
  • 3123371459 | +1 312-337-1459 Illinois U.S.A.
  • 3123371460 | +1 312-337-1460 Illinois U.S.A.
  • 3123371461 | +1 312-337-1461 Illinois U.S.A.
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  • 3123371463 | +1 312-337-1463 Illinois U.S.A.
  • 3123371464 | +1 312-337-1464 Illinois U.S.A.
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  • 3123371469 | +1 312-337-1469 Illinois U.S.A.
  • 3123371470 | +1 312-337-1470 Illinois U.S.A.
  • 3123371471 | +1 312-337-1471 Illinois U.S.A.
  • 3123371472 | +1 312-337-1472 Illinois U.S.A.
  • 3123371473 | +1 312-337-1473 Illinois U.S.A.
  • 3123371474 | +1 312-337-1474 Illinois U.S.A.
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  • 3123371476 | +1 312-337-1476 Illinois U.S.A.
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  • 3123371478 | +1 312-337-1478 Illinois U.S.A.
  • 3123371479 | +1 312-337-1479 Illinois U.S.A.
  • 3123371480 | +1 312-337-1480 Illinois U.S.A.
  • 3123371481 | +1 312-337-1481 Illinois U.S.A.
  • 3123371482 | +1 312-337-1482 Illinois U.S.A.
  • 3123371483 | +1 312-337-1483 Illinois U.S.A.
  • 3123371484 | +1 312-337-1484 Illinois U.S.A.
  • 3123371485 | +1 312-337-1485 Illinois U.S.A.
  • 3123371486 | +1 312-337-1486 Illinois U.S.A.
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