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).

  • 3126421200 | +1 312-642-1200 Illinois U.S.A.
  • 3126421201 | +1 312-642-1201 Illinois U.S.A.
  • 3126421202 | +1 312-642-1202 Illinois U.S.A.
  • 3126421203 | +1 312-642-1203 Illinois U.S.A.
  • 3126421204 | +1 312-642-1204 Illinois U.S.A.
  • 3126421205 | +1 312-642-1205 Illinois U.S.A.
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  • 3126421208 | +1 312-642-1208 Illinois U.S.A.
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  • 3126421210 | +1 312-642-1210 Illinois U.S.A.
  • 3126421211 | +1 312-642-1211 Illinois U.S.A.
  • 3126421212 | +1 312-642-1212 Illinois U.S.A.
  • 3126421213 | +1 312-642-1213 Illinois U.S.A.
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  • 3126421218 | +1 312-642-1218 Illinois U.S.A.
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  • 3126421234 | +1 312-642-1234 Illinois U.S.A.
  • 3126421235 | +1 312-642-1235 Illinois U.S.A.
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  • 3126421240 | +1 312-642-1240 Illinois U.S.A.
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  • 3126421260 | +1 312-642-1260 Illinois U.S.A.
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  • 3126421270 | +1 312-642-1270 Illinois U.S.A.
  • 3126421271 | +1 312-642-1271 Illinois U.S.A.
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  • 3126421273 | +1 312-642-1273 Illinois U.S.A.
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  • 3126421278 | +1 312-642-1278 Illinois U.S.A.
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  • 3126421280 | +1 312-642-1280 Illinois U.S.A.
  • 3126421281 | +1 312-642-1281 Illinois U.S.A.
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  • 3126421283 | +1 312-642-1283 Illinois U.S.A.
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  • 3126421299 | +1 312-642-1299 Illinois U.S.A.