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).

  • 3128508300 | +1 312-850-8300 Illinois U.S.A.
  • 3128508301 | +1 312-850-8301 Illinois U.S.A.
  • 3128508302 | +1 312-850-8302 Illinois U.S.A.
  • 3128508303 | +1 312-850-8303 Illinois U.S.A.
  • 3128508304 | +1 312-850-8304 Illinois U.S.A.
  • 3128508305 | +1 312-850-8305 Illinois U.S.A.
  • 3128508306 | +1 312-850-8306 Illinois U.S.A.
  • 3128508307 | +1 312-850-8307 Illinois U.S.A.
  • 3128508308 | +1 312-850-8308 Illinois U.S.A.
  • 3128508309 | +1 312-850-8309 Illinois U.S.A.
  • 3128508310 | +1 312-850-8310 Illinois U.S.A.
  • 3128508311 | +1 312-850-8311 Illinois U.S.A.
  • 3128508312 | +1 312-850-8312 Illinois U.S.A.
  • 3128508313 | +1 312-850-8313 Illinois U.S.A.
  • 3128508314 | +1 312-850-8314 Illinois U.S.A.
  • 3128508315 | +1 312-850-8315 Illinois U.S.A.
  • 3128508316 | +1 312-850-8316 Illinois U.S.A.
  • 3128508317 | +1 312-850-8317 Illinois U.S.A.
  • 3128508318 | +1 312-850-8318 Illinois U.S.A.
  • 3128508319 | +1 312-850-8319 Illinois U.S.A.
  • 3128508320 | +1 312-850-8320 Illinois U.S.A.
  • 3128508321 | +1 312-850-8321 Illinois U.S.A.
  • 3128508322 | +1 312-850-8322 Illinois U.S.A.
  • 3128508323 | +1 312-850-8323 Illinois U.S.A.
  • 3128508324 | +1 312-850-8324 Illinois U.S.A.
  • 3128508325 | +1 312-850-8325 Illinois U.S.A.
  • 3128508326 | +1 312-850-8326 Illinois U.S.A.
  • 3128508327 | +1 312-850-8327 Illinois U.S.A.
  • 3128508328 | +1 312-850-8328 Illinois U.S.A.
  • 3128508329 | +1 312-850-8329 Illinois U.S.A.
  • 3128508330 | +1 312-850-8330 Illinois U.S.A.
  • 3128508331 | +1 312-850-8331 Illinois U.S.A.
  • 3128508332 | +1 312-850-8332 Illinois U.S.A.
  • 3128508333 | +1 312-850-8333 Illinois U.S.A.
  • 3128508334 | +1 312-850-8334 Illinois U.S.A.
  • 3128508335 | +1 312-850-8335 Illinois U.S.A.
  • 3128508336 | +1 312-850-8336 Illinois U.S.A.
  • 3128508337 | +1 312-850-8337 Illinois U.S.A.
  • 3128508338 | +1 312-850-8338 Illinois U.S.A.
  • 3128508339 | +1 312-850-8339 Illinois U.S.A.
  • 3128508340 | +1 312-850-8340 Illinois U.S.A.
  • 3128508341 | +1 312-850-8341 Illinois U.S.A.
  • 3128508342 | +1 312-850-8342 Illinois U.S.A.
  • 3128508343 | +1 312-850-8343 Illinois U.S.A.
  • 3128508344 | +1 312-850-8344 Illinois U.S.A.
  • 3128508345 | +1 312-850-8345 Illinois U.S.A.
  • 3128508346 | +1 312-850-8346 Illinois U.S.A.
  • 3128508347 | +1 312-850-8347 Illinois U.S.A.
  • 3128508348 | +1 312-850-8348 Illinois U.S.A.
  • 3128508349 | +1 312-850-8349 Illinois U.S.A.
  • 3128508350 | +1 312-850-8350 Illinois U.S.A.
  • 3128508351 | +1 312-850-8351 Illinois U.S.A.
  • 3128508352 | +1 312-850-8352 Illinois U.S.A.
  • 3128508353 | +1 312-850-8353 Illinois U.S.A.
  • 3128508354 | +1 312-850-8354 Illinois U.S.A.
  • 3128508355 | +1 312-850-8355 Illinois U.S.A.
  • 3128508356 | +1 312-850-8356 Illinois U.S.A.
  • 3128508357 | +1 312-850-8357 Illinois U.S.A.
  • 3128508358 | +1 312-850-8358 Illinois U.S.A.
  • 3128508359 | +1 312-850-8359 Illinois U.S.A.
  • 3128508360 | +1 312-850-8360 Illinois U.S.A.
  • 3128508361 | +1 312-850-8361 Illinois U.S.A.
  • 3128508362 | +1 312-850-8362 Illinois U.S.A.
  • 3128508363 | +1 312-850-8363 Illinois U.S.A.
  • 3128508364 | +1 312-850-8364 Illinois U.S.A.
  • 3128508365 | +1 312-850-8365 Illinois U.S.A.
  • 3128508366 | +1 312-850-8366 Illinois U.S.A.
  • 3128508367 | +1 312-850-8367 Illinois U.S.A.
  • 3128508368 | +1 312-850-8368 Illinois U.S.A.
  • 3128508369 | +1 312-850-8369 Illinois U.S.A.
  • 3128508370 | +1 312-850-8370 Illinois U.S.A.
  • 3128508371 | +1 312-850-8371 Illinois U.S.A.
  • 3128508372 | +1 312-850-8372 Illinois U.S.A.
  • 3128508373 | +1 312-850-8373 Illinois U.S.A.
  • 3128508374 | +1 312-850-8374 Illinois U.S.A.
  • 3128508375 | +1 312-850-8375 Illinois U.S.A.
  • 3128508376 | +1 312-850-8376 Illinois U.S.A.
  • 3128508377 | +1 312-850-8377 Illinois U.S.A.
  • 3128508378 | +1 312-850-8378 Illinois U.S.A.
  • 3128508379 | +1 312-850-8379 Illinois U.S.A.
  • 3128508380 | +1 312-850-8380 Illinois U.S.A.
  • 3128508381 | +1 312-850-8381 Illinois U.S.A.
  • 3128508382 | +1 312-850-8382 Illinois U.S.A.
  • 3128508383 | +1 312-850-8383 Illinois U.S.A.
  • 3128508384 | +1 312-850-8384 Illinois U.S.A.
  • 3128508385 | +1 312-850-8385 Illinois U.S.A.
  • 3128508386 | +1 312-850-8386 Illinois U.S.A.
  • 3128508387 | +1 312-850-8387 Illinois U.S.A.
  • 3128508388 | +1 312-850-8388 Illinois U.S.A.
  • 3128508389 | +1 312-850-8389 Illinois U.S.A.
  • 3128508390 | +1 312-850-8390 Illinois U.S.A.
  • 3128508391 | +1 312-850-8391 Illinois U.S.A.
  • 3128508392 | +1 312-850-8392 Illinois U.S.A.
  • 3128508393 | +1 312-850-8393 Illinois U.S.A.
  • 3128508394 | +1 312-850-8394 Illinois U.S.A.
  • 3128508395 | +1 312-850-8395 Illinois U.S.A.
  • 3128508396 | +1 312-850-8396 Illinois U.S.A.
  • 3128508397 | +1 312-850-8397 Illinois U.S.A.
  • 3128508398 | +1 312-850-8398 Illinois U.S.A.
  • 3128508399 | +1 312-850-8399 Illinois U.S.A.