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).

  • 3127990300 | +1 312-799-0300 Illinois U.S.A.
  • 3127990301 | +1 312-799-0301 Illinois U.S.A.
  • 3127990302 | +1 312-799-0302 Illinois U.S.A.
  • 3127990303 | +1 312-799-0303 Illinois U.S.A.
  • 3127990304 | +1 312-799-0304 Illinois U.S.A.
  • 3127990305 | +1 312-799-0305 Illinois U.S.A.
  • 3127990306 | +1 312-799-0306 Illinois U.S.A.
  • 3127990307 | +1 312-799-0307 Illinois U.S.A.
  • 3127990308 | +1 312-799-0308 Illinois U.S.A.
  • 3127990309 | +1 312-799-0309 Illinois U.S.A.
  • 3127990310 | +1 312-799-0310 Illinois U.S.A.
  • 3127990311 | +1 312-799-0311 Illinois U.S.A.
  • 3127990312 | +1 312-799-0312 Illinois U.S.A.
  • 3127990313 | +1 312-799-0313 Illinois U.S.A.
  • 3127990314 | +1 312-799-0314 Illinois U.S.A.
  • 3127990315 | +1 312-799-0315 Illinois U.S.A.
  • 3127990316 | +1 312-799-0316 Illinois U.S.A.
  • 3127990317 | +1 312-799-0317 Illinois U.S.A.
  • 3127990318 | +1 312-799-0318 Illinois U.S.A.
  • 3127990319 | +1 312-799-0319 Illinois U.S.A.
  • 3127990320 | +1 312-799-0320 Illinois U.S.A.
  • 3127990321 | +1 312-799-0321 Illinois U.S.A.
  • 3127990322 | +1 312-799-0322 Illinois U.S.A.
  • 3127990323 | +1 312-799-0323 Illinois U.S.A.
  • 3127990324 | +1 312-799-0324 Illinois U.S.A.
  • 3127990325 | +1 312-799-0325 Illinois U.S.A.
  • 3127990326 | +1 312-799-0326 Illinois U.S.A.
  • 3127990327 | +1 312-799-0327 Illinois U.S.A.
  • 3127990328 | +1 312-799-0328 Illinois U.S.A.
  • 3127990329 | +1 312-799-0329 Illinois U.S.A.
  • 3127990330 | +1 312-799-0330 Illinois U.S.A.
  • 3127990331 | +1 312-799-0331 Illinois U.S.A.
  • 3127990332 | +1 312-799-0332 Illinois U.S.A.
  • 3127990333 | +1 312-799-0333 Illinois U.S.A.
  • 3127990334 | +1 312-799-0334 Illinois U.S.A.
  • 3127990335 | +1 312-799-0335 Illinois U.S.A.
  • 3127990336 | +1 312-799-0336 Illinois U.S.A.
  • 3127990337 | +1 312-799-0337 Illinois U.S.A.
  • 3127990338 | +1 312-799-0338 Illinois U.S.A.
  • 3127990339 | +1 312-799-0339 Illinois U.S.A.
  • 3127990340 | +1 312-799-0340 Illinois U.S.A.
  • 3127990341 | +1 312-799-0341 Illinois U.S.A.
  • 3127990342 | +1 312-799-0342 Illinois U.S.A.
  • 3127990343 | +1 312-799-0343 Illinois U.S.A.
  • 3127990344 | +1 312-799-0344 Illinois U.S.A.
  • 3127990345 | +1 312-799-0345 Illinois U.S.A.
  • 3127990346 | +1 312-799-0346 Illinois U.S.A.
  • 3127990347 | +1 312-799-0347 Illinois U.S.A.
  • 3127990348 | +1 312-799-0348 Illinois U.S.A.
  • 3127990349 | +1 312-799-0349 Illinois U.S.A.
  • 3127990350 | +1 312-799-0350 Illinois U.S.A.
  • 3127990351 | +1 312-799-0351 Illinois U.S.A.
  • 3127990352 | +1 312-799-0352 Illinois U.S.A.
  • 3127990353 | +1 312-799-0353 Illinois U.S.A.
  • 3127990354 | +1 312-799-0354 Illinois U.S.A.
  • 3127990355 | +1 312-799-0355 Illinois U.S.A.
  • 3127990356 | +1 312-799-0356 Illinois U.S.A.
  • 3127990357 | +1 312-799-0357 Illinois U.S.A.
  • 3127990358 | +1 312-799-0358 Illinois U.S.A.
  • 3127990359 | +1 312-799-0359 Illinois U.S.A.
  • 3127990360 | +1 312-799-0360 Illinois U.S.A.
  • 3127990361 | +1 312-799-0361 Illinois U.S.A.
  • 3127990362 | +1 312-799-0362 Illinois U.S.A.
  • 3127990363 | +1 312-799-0363 Illinois U.S.A.
  • 3127990364 | +1 312-799-0364 Illinois U.S.A.
  • 3127990365 | +1 312-799-0365 Illinois U.S.A.
  • 3127990366 | +1 312-799-0366 Illinois U.S.A.
  • 3127990367 | +1 312-799-0367 Illinois U.S.A.
  • 3127990368 | +1 312-799-0368 Illinois U.S.A.
  • 3127990369 | +1 312-799-0369 Illinois U.S.A.
  • 3127990370 | +1 312-799-0370 Illinois U.S.A.
  • 3127990371 | +1 312-799-0371 Illinois U.S.A.
  • 3127990372 | +1 312-799-0372 Illinois U.S.A.
  • 3127990373 | +1 312-799-0373 Illinois U.S.A.
  • 3127990374 | +1 312-799-0374 Illinois U.S.A.
  • 3127990375 | +1 312-799-0375 Illinois U.S.A.
  • 3127990376 | +1 312-799-0376 Illinois U.S.A.
  • 3127990377 | +1 312-799-0377 Illinois U.S.A.
  • 3127990378 | +1 312-799-0378 Illinois U.S.A.
  • 3127990379 | +1 312-799-0379 Illinois U.S.A.
  • 3127990380 | +1 312-799-0380 Illinois U.S.A.
  • 3127990381 | +1 312-799-0381 Illinois U.S.A.
  • 3127990382 | +1 312-799-0382 Illinois U.S.A.
  • 3127990383 | +1 312-799-0383 Illinois U.S.A.
  • 3127990384 | +1 312-799-0384 Illinois U.S.A.
  • 3127990385 | +1 312-799-0385 Illinois U.S.A.
  • 3127990386 | +1 312-799-0386 Illinois U.S.A.
  • 3127990387 | +1 312-799-0387 Illinois U.S.A.
  • 3127990388 | +1 312-799-0388 Illinois U.S.A.
  • 3127990389 | +1 312-799-0389 Illinois U.S.A.
  • 3127990390 | +1 312-799-0390 Illinois U.S.A.
  • 3127990391 | +1 312-799-0391 Illinois U.S.A.
  • 3127990392 | +1 312-799-0392 Illinois U.S.A.
  • 3127990393 | +1 312-799-0393 Illinois U.S.A.
  • 3127990394 | +1 312-799-0394 Illinois U.S.A.
  • 3127990395 | +1 312-799-0395 Illinois U.S.A.
  • 3127990396 | +1 312-799-0396 Illinois U.S.A.
  • 3127990397 | +1 312-799-0397 Illinois U.S.A.
  • 3127990398 | +1 312-799-0398 Illinois U.S.A.
  • 3127990399 | +1 312-799-0399 Illinois U.S.A.