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).

  • 3125037300 | +1 312-503-7300 Illinois U.S.A.
  • 3125037301 | +1 312-503-7301 Illinois U.S.A.
  • 3125037302 | +1 312-503-7302 Illinois U.S.A.
  • 3125037303 | +1 312-503-7303 Illinois U.S.A.
  • 3125037304 | +1 312-503-7304 Illinois U.S.A.
  • 3125037305 | +1 312-503-7305 Illinois U.S.A.
  • 3125037306 | +1 312-503-7306 Illinois U.S.A.
  • 3125037307 | +1 312-503-7307 Illinois U.S.A.
  • 3125037308 | +1 312-503-7308 Illinois U.S.A.
  • 3125037309 | +1 312-503-7309 Illinois U.S.A.
  • 3125037310 | +1 312-503-7310 Illinois U.S.A.
  • 3125037311 | +1 312-503-7311 Illinois U.S.A.
  • 3125037312 | +1 312-503-7312 Illinois U.S.A.
  • 3125037313 | +1 312-503-7313 Illinois U.S.A.
  • 3125037314 | +1 312-503-7314 Illinois U.S.A.
  • 3125037315 | +1 312-503-7315 Illinois U.S.A.
  • 3125037316 | +1 312-503-7316 Illinois U.S.A.
  • 3125037317 | +1 312-503-7317 Illinois U.S.A.
  • 3125037318 | +1 312-503-7318 Illinois U.S.A.
  • 3125037319 | +1 312-503-7319 Illinois U.S.A.
  • 3125037320 | +1 312-503-7320 Illinois U.S.A.
  • 3125037321 | +1 312-503-7321 Illinois U.S.A.
  • 3125037322 | +1 312-503-7322 Illinois U.S.A.
  • 3125037323 | +1 312-503-7323 Illinois U.S.A.
  • 3125037324 | +1 312-503-7324 Illinois U.S.A.
  • 3125037325 | +1 312-503-7325 Illinois U.S.A.
  • 3125037326 | +1 312-503-7326 Illinois U.S.A.
  • 3125037327 | +1 312-503-7327 Illinois U.S.A.
  • 3125037328 | +1 312-503-7328 Illinois U.S.A.
  • 3125037329 | +1 312-503-7329 Illinois U.S.A.
  • 3125037330 | +1 312-503-7330 Illinois U.S.A.
  • 3125037331 | +1 312-503-7331 Illinois U.S.A.
  • 3125037332 | +1 312-503-7332 Illinois U.S.A.
  • 3125037333 | +1 312-503-7333 Illinois U.S.A.
  • 3125037334 | +1 312-503-7334 Illinois U.S.A.
  • 3125037335 | +1 312-503-7335 Illinois U.S.A.
  • 3125037336 | +1 312-503-7336 Illinois U.S.A.
  • 3125037337 | +1 312-503-7337 Illinois U.S.A.
  • 3125037338 | +1 312-503-7338 Illinois U.S.A.
  • 3125037339 | +1 312-503-7339 Illinois U.S.A.
  • 3125037340 | +1 312-503-7340 Illinois U.S.A.
  • 3125037341 | +1 312-503-7341 Illinois U.S.A.
  • 3125037342 | +1 312-503-7342 Illinois U.S.A.
  • 3125037343 | +1 312-503-7343 Illinois U.S.A.
  • 3125037344 | +1 312-503-7344 Illinois U.S.A.
  • 3125037345 | +1 312-503-7345 Illinois U.S.A.
  • 3125037346 | +1 312-503-7346 Illinois U.S.A.
  • 3125037347 | +1 312-503-7347 Illinois U.S.A.
  • 3125037348 | +1 312-503-7348 Illinois U.S.A.
  • 3125037349 | +1 312-503-7349 Illinois U.S.A.
  • 3125037350 | +1 312-503-7350 Illinois U.S.A.
  • 3125037351 | +1 312-503-7351 Illinois U.S.A.
  • 3125037352 | +1 312-503-7352 Illinois U.S.A.
  • 3125037353 | +1 312-503-7353 Illinois U.S.A.
  • 3125037354 | +1 312-503-7354 Illinois U.S.A.
  • 3125037355 | +1 312-503-7355 Illinois U.S.A.
  • 3125037356 | +1 312-503-7356 Illinois U.S.A.
  • 3125037357 | +1 312-503-7357 Illinois U.S.A.
  • 3125037358 | +1 312-503-7358 Illinois U.S.A.
  • 3125037359 | +1 312-503-7359 Illinois U.S.A.
  • 3125037360 | +1 312-503-7360 Illinois U.S.A.
  • 3125037361 | +1 312-503-7361 Illinois U.S.A.
  • 3125037362 | +1 312-503-7362 Illinois U.S.A.
  • 3125037363 | +1 312-503-7363 Illinois U.S.A.
  • 3125037364 | +1 312-503-7364 Illinois U.S.A.
  • 3125037365 | +1 312-503-7365 Illinois U.S.A.
  • 3125037366 | +1 312-503-7366 Illinois U.S.A.
  • 3125037367 | +1 312-503-7367 Illinois U.S.A.
  • 3125037368 | +1 312-503-7368 Illinois U.S.A.
  • 3125037369 | +1 312-503-7369 Illinois U.S.A.
  • 3125037370 | +1 312-503-7370 Illinois U.S.A.
  • 3125037371 | +1 312-503-7371 Illinois U.S.A.
  • 3125037372 | +1 312-503-7372 Illinois U.S.A.
  • 3125037373 | +1 312-503-7373 Illinois U.S.A.
  • 3125037374 | +1 312-503-7374 Illinois U.S.A.
  • 3125037375 | +1 312-503-7375 Illinois U.S.A.
  • 3125037376 | +1 312-503-7376 Illinois U.S.A.
  • 3125037377 | +1 312-503-7377 Illinois U.S.A.
  • 3125037378 | +1 312-503-7378 Illinois U.S.A.
  • 3125037379 | +1 312-503-7379 Illinois U.S.A.
  • 3125037380 | +1 312-503-7380 Illinois U.S.A.
  • 3125037381 | +1 312-503-7381 Illinois U.S.A.
  • 3125037382 | +1 312-503-7382 Illinois U.S.A.
  • 3125037383 | +1 312-503-7383 Illinois U.S.A.
  • 3125037384 | +1 312-503-7384 Illinois U.S.A.
  • 3125037385 | +1 312-503-7385 Illinois U.S.A.
  • 3125037386 | +1 312-503-7386 Illinois U.S.A.
  • 3125037387 | +1 312-503-7387 Illinois U.S.A.
  • 3125037388 | +1 312-503-7388 Illinois U.S.A.
  • 3125037389 | +1 312-503-7389 Illinois U.S.A.
  • 3125037390 | +1 312-503-7390 Illinois U.S.A.
  • 3125037391 | +1 312-503-7391 Illinois U.S.A.
  • 3125037392 | +1 312-503-7392 Illinois U.S.A.
  • 3125037393 | +1 312-503-7393 Illinois U.S.A.
  • 3125037394 | +1 312-503-7394 Illinois U.S.A.
  • 3125037395 | +1 312-503-7395 Illinois U.S.A.
  • 3125037396 | +1 312-503-7396 Illinois U.S.A.
  • 3125037397 | +1 312-503-7397 Illinois U.S.A.
  • 3125037398 | +1 312-503-7398 Illinois U.S.A.
  • 3125037399 | +1 312-503-7399 Illinois U.S.A.