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).

  • 3128391300 | +1 312-839-1300 Illinois U.S.A.
  • 3128391301 | +1 312-839-1301 Illinois U.S.A.
  • 3128391302 | +1 312-839-1302 Illinois U.S.A.
  • 3128391303 | +1 312-839-1303 Illinois U.S.A.
  • 3128391304 | +1 312-839-1304 Illinois U.S.A.
  • 3128391305 | +1 312-839-1305 Illinois U.S.A.
  • 3128391306 | +1 312-839-1306 Illinois U.S.A.
  • 3128391307 | +1 312-839-1307 Illinois U.S.A.
  • 3128391308 | +1 312-839-1308 Illinois U.S.A.
  • 3128391309 | +1 312-839-1309 Illinois U.S.A.
  • 3128391310 | +1 312-839-1310 Illinois U.S.A.
  • 3128391311 | +1 312-839-1311 Illinois U.S.A.
  • 3128391312 | +1 312-839-1312 Illinois U.S.A.
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  • 3128391331 | +1 312-839-1331 Illinois U.S.A.
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  • 3128391367 | +1 312-839-1367 Illinois U.S.A.
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  • 3128391369 | +1 312-839-1369 Illinois U.S.A.
  • 3128391370 | +1 312-839-1370 Illinois U.S.A.
  • 3128391371 | +1 312-839-1371 Illinois U.S.A.
  • 3128391372 | +1 312-839-1372 Illinois U.S.A.
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  • 3128391374 | +1 312-839-1374 Illinois U.S.A.
  • 3128391375 | +1 312-839-1375 Illinois U.S.A.
  • 3128391376 | +1 312-839-1376 Illinois U.S.A.
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  • 3128391378 | +1 312-839-1378 Illinois U.S.A.
  • 3128391379 | +1 312-839-1379 Illinois U.S.A.
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  • 3128391394 | +1 312-839-1394 Illinois U.S.A.
  • 3128391395 | +1 312-839-1395 Illinois U.S.A.
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  • 3128391397 | +1 312-839-1397 Illinois U.S.A.
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  • 3128391399 | +1 312-839-1399 Illinois U.S.A.