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).

  • 3128452300 | +1 312-845-2300 Illinois U.S.A.
  • 3128452301 | +1 312-845-2301 Illinois U.S.A.
  • 3128452302 | +1 312-845-2302 Illinois U.S.A.
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  • 3128452308 | +1 312-845-2308 Illinois U.S.A.
  • 3128452309 | +1 312-845-2309 Illinois U.S.A.
  • 3128452310 | +1 312-845-2310 Illinois U.S.A.
  • 3128452311 | +1 312-845-2311 Illinois U.S.A.
  • 3128452312 | +1 312-845-2312 Illinois U.S.A.
  • 3128452313 | +1 312-845-2313 Illinois U.S.A.
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  • 3128452318 | +1 312-845-2318 Illinois U.S.A.
  • 3128452319 | +1 312-845-2319 Illinois U.S.A.
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  • 3128452321 | +1 312-845-2321 Illinois U.S.A.
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  • 3128452323 | +1 312-845-2323 Illinois U.S.A.
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  • 3128452325 | +1 312-845-2325 Illinois U.S.A.
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  • 3128452331 | +1 312-845-2331 Illinois U.S.A.
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  • 3128452345 | +1 312-845-2345 Illinois U.S.A.
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  • 3128452348 | +1 312-845-2348 Illinois U.S.A.
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  • 3128452351 | +1 312-845-2351 Illinois U.S.A.
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  • 3128452355 | +1 312-845-2355 Illinois U.S.A.
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  • 3128452367 | +1 312-845-2367 Illinois U.S.A.
  • 3128452368 | +1 312-845-2368 Illinois U.S.A.
  • 3128452369 | +1 312-845-2369 Illinois U.S.A.
  • 3128452370 | +1 312-845-2370 Illinois U.S.A.
  • 3128452371 | +1 312-845-2371 Illinois U.S.A.
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  • 3128452373 | +1 312-845-2373 Illinois U.S.A.
  • 3128452374 | +1 312-845-2374 Illinois U.S.A.
  • 3128452375 | +1 312-845-2375 Illinois U.S.A.
  • 3128452376 | +1 312-845-2376 Illinois U.S.A.
  • 3128452377 | +1 312-845-2377 Illinois U.S.A.
  • 3128452378 | +1 312-845-2378 Illinois U.S.A.
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  • 3128452394 | +1 312-845-2394 Illinois U.S.A.
  • 3128452395 | +1 312-845-2395 Illinois U.S.A.
  • 3128452396 | +1 312-845-2396 Illinois U.S.A.
  • 3128452397 | +1 312-845-2397 Illinois U.S.A.
  • 3128452398 | +1 312-845-2398 Illinois U.S.A.
  • 3128452399 | +1 312-845-2399 Illinois U.S.A.