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).

  • 3129472400 | +1 312-947-2400 Illinois U.S.A.
  • 3129472401 | +1 312-947-2401 Illinois U.S.A.
  • 3129472402 | +1 312-947-2402 Illinois U.S.A.
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  • 3129472424 | +1 312-947-2424 Illinois U.S.A.
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  • 3129472431 | +1 312-947-2431 Illinois U.S.A.
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  • 3129472446 | +1 312-947-2446 Illinois U.S.A.
  • 3129472447 | +1 312-947-2447 Illinois U.S.A.
  • 3129472448 | +1 312-947-2448 Illinois U.S.A.
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  • 3129472451 | +1 312-947-2451 Illinois U.S.A.
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  • 3129472467 | +1 312-947-2467 Illinois U.S.A.
  • 3129472468 | +1 312-947-2468 Illinois U.S.A.
  • 3129472469 | +1 312-947-2469 Illinois U.S.A.
  • 3129472470 | +1 312-947-2470 Illinois U.S.A.
  • 3129472471 | +1 312-947-2471 Illinois U.S.A.
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  • 3129472473 | +1 312-947-2473 Illinois U.S.A.
  • 3129472474 | +1 312-947-2474 Illinois U.S.A.
  • 3129472475 | +1 312-947-2475 Illinois U.S.A.
  • 3129472476 | +1 312-947-2476 Illinois U.S.A.
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  • 3129472478 | +1 312-947-2478 Illinois U.S.A.
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  • 3129472494 | +1 312-947-2494 Illinois U.S.A.
  • 3129472495 | +1 312-947-2495 Illinois U.S.A.
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  • 3129472497 | +1 312-947-2497 Illinois U.S.A.
  • 3129472498 | +1 312-947-2498 Illinois U.S.A.
  • 3129472499 | +1 312-947-2499 Illinois U.S.A.