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).

  • 3128391200 | +1 312-839-1200 Illinois U.S.A.
  • 3128391201 | +1 312-839-1201 Illinois U.S.A.
  • 3128391202 | +1 312-839-1202 Illinois U.S.A.
  • 3128391203 | +1 312-839-1203 Illinois U.S.A.
  • 3128391204 | +1 312-839-1204 Illinois U.S.A.
  • 3128391205 | +1 312-839-1205 Illinois U.S.A.
  • 3128391206 | +1 312-839-1206 Illinois U.S.A.
  • 3128391207 | +1 312-839-1207 Illinois U.S.A.
  • 3128391208 | +1 312-839-1208 Illinois U.S.A.
  • 3128391209 | +1 312-839-1209 Illinois U.S.A.
  • 3128391210 | +1 312-839-1210 Illinois U.S.A.
  • 3128391211 | +1 312-839-1211 Illinois U.S.A.
  • 3128391212 | +1 312-839-1212 Illinois U.S.A.
  • 3128391213 | +1 312-839-1213 Illinois U.S.A.
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  • 3128391218 | +1 312-839-1218 Illinois U.S.A.
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  • 3128391223 | +1 312-839-1223 Illinois U.S.A.
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  • 3128391231 | +1 312-839-1231 Illinois U.S.A.
  • 3128391232 | +1 312-839-1232 Illinois U.S.A.
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  • 3128391234 | +1 312-839-1234 Illinois U.S.A.
  • 3128391235 | +1 312-839-1235 Illinois U.S.A.
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  • 3128391251 | +1 312-839-1251 Illinois U.S.A.
  • 3128391252 | +1 312-839-1252 Illinois U.S.A.
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  • 3128391266 | +1 312-839-1266 Illinois U.S.A.
  • 3128391267 | +1 312-839-1267 Illinois U.S.A.
  • 3128391268 | +1 312-839-1268 Illinois U.S.A.
  • 3128391269 | +1 312-839-1269 Illinois U.S.A.
  • 3128391270 | +1 312-839-1270 Illinois U.S.A.
  • 3128391271 | +1 312-839-1271 Illinois U.S.A.
  • 3128391272 | +1 312-839-1272 Illinois U.S.A.
  • 3128391273 | +1 312-839-1273 Illinois U.S.A.
  • 3128391274 | +1 312-839-1274 Illinois U.S.A.
  • 3128391275 | +1 312-839-1275 Illinois U.S.A.
  • 3128391276 | +1 312-839-1276 Illinois U.S.A.
  • 3128391277 | +1 312-839-1277 Illinois U.S.A.
  • 3128391278 | +1 312-839-1278 Illinois U.S.A.
  • 3128391279 | +1 312-839-1279 Illinois U.S.A.
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  • 3128391294 | +1 312-839-1294 Illinois U.S.A.
  • 3128391295 | +1 312-839-1295 Illinois U.S.A.
  • 3128391296 | +1 312-839-1296 Illinois U.S.A.
  • 3128391297 | +1 312-839-1297 Illinois U.S.A.
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  • 3128391299 | +1 312-839-1299 Illinois U.S.A.