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).

  • 3129921300 | +1 312-992-1300 Illinois U.S.A.
  • 3129921301 | +1 312-992-1301 Illinois U.S.A.
  • 3129921302 | +1 312-992-1302 Illinois U.S.A.
  • 3129921303 | +1 312-992-1303 Illinois U.S.A.
  • 3129921304 | +1 312-992-1304 Illinois U.S.A.
  • 3129921305 | +1 312-992-1305 Illinois U.S.A.
  • 3129921306 | +1 312-992-1306 Illinois U.S.A.
  • 3129921307 | +1 312-992-1307 Illinois U.S.A.
  • 3129921308 | +1 312-992-1308 Illinois U.S.A.
  • 3129921309 | +1 312-992-1309 Illinois U.S.A.
  • 3129921310 | +1 312-992-1310 Illinois U.S.A.
  • 3129921311 | +1 312-992-1311 Illinois U.S.A.
  • 3129921312 | +1 312-992-1312 Illinois U.S.A.
  • 3129921313 | +1 312-992-1313 Illinois U.S.A.
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  • 3129921315 | +1 312-992-1315 Illinois U.S.A.
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  • 3129921318 | +1 312-992-1318 Illinois U.S.A.
  • 3129921319 | +1 312-992-1319 Illinois U.S.A.
  • 3129921320 | +1 312-992-1320 Illinois U.S.A.
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  • 3129921335 | +1 312-992-1335 Illinois U.S.A.
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  • 3129921352 | +1 312-992-1352 Illinois U.S.A.
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  • 3129921356 | +1 312-992-1356 Illinois U.S.A.
  • 3129921357 | +1 312-992-1357 Illinois U.S.A.
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  • 3129921359 | +1 312-992-1359 Illinois U.S.A.
  • 3129921360 | +1 312-992-1360 Illinois U.S.A.
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  • 3129921369 | +1 312-992-1369 Illinois U.S.A.
  • 3129921370 | +1 312-992-1370 Illinois U.S.A.
  • 3129921371 | +1 312-992-1371 Illinois U.S.A.
  • 3129921372 | +1 312-992-1372 Illinois U.S.A.
  • 3129921373 | +1 312-992-1373 Illinois U.S.A.
  • 3129921374 | +1 312-992-1374 Illinois U.S.A.
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  • 3129921376 | +1 312-992-1376 Illinois U.S.A.
  • 3129921377 | +1 312-992-1377 Illinois U.S.A.
  • 3129921378 | +1 312-992-1378 Illinois U.S.A.
  • 3129921379 | +1 312-992-1379 Illinois U.S.A.
  • 3129921380 | +1 312-992-1380 Illinois U.S.A.
  • 3129921381 | +1 312-992-1381 Illinois U.S.A.
  • 3129921382 | +1 312-992-1382 Illinois U.S.A.
  • 3129921383 | +1 312-992-1383 Illinois U.S.A.
  • 3129921384 | +1 312-992-1384 Illinois U.S.A.
  • 3129921385 | +1 312-992-1385 Illinois U.S.A.
  • 3129921386 | +1 312-992-1386 Illinois U.S.A.
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  • 3129921395 | +1 312-992-1395 Illinois U.S.A.
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  • 3129921398 | +1 312-992-1398 Illinois U.S.A.
  • 3129921399 | +1 312-992-1399 Illinois U.S.A.