Area code 312 prefixes in Illinois

Exchange Location
312-201 Oakland
312-203 Naperville
312-204 Ann Arbor
312-205 Fresno
312-206 Philadelphia
312-207 Buffalo
312-208 Tallahassee
312-209 Grand Island
312-212 Otsego
312-213 Jacksonville
312-214 Baltimore
312-215 Des Moines
312-216 Duluth
312-217 Melrose
312-218 Vista
312-219 Jonesboro
312-221 Sacramento
312-222 Sacramento
312-223 Mesa
312-224 Huntington
312-225 Sioux City
312-226 Colorado Springs
312-227 Tippecanoe
312-228 Cleveland
312-229 St. George
312-230 Plainfield
312-231 Atlanta
312-232 Ann Arbor
312-233 San Bernardino
312-234 Worcester
312-235 Worcester
312-236 Spring Valley
312-237 Martinsville
312-238 Augusta
312-239 Houston
312-240 Herndon
312-241 Vista
312-242 Fort Worth
312-243 Hartford
312-244 Oak Park
312-245 Toledo
312-246 Lynn
312-247 Topeka
312-248 Fort Lauderdale
312-249 Oklahoma City
312-250 Eugene
312-251 Muskegon
312-252 Mesa
312-253 Little Rock
312-254 Modesto
312-255 Hartford
312-256 Detroit
312-257 Des Moines
312-258 Champaign
312-259 Chicago
312-260 Boston
312-261 Omaha
312-262 Greensboro
312-263 Compton
312-264 San Diego
312-265 Seattle
312-266 Vancouver
312-267 Toms River
312-268 Greenville
312-269 San Diego
312-271 Baton Rouge
312-272 Greenville
312-273 Greenville
312-275 Ogden
312-276 Greenville
312-277 Columbia
312-279 Buffalo
312-280 Conroe
312-281 Wilmington
312-282 Green Bay
312-283 Savannah
312-284 Detroit
312-285 Reading
312-286 Alexandria
312-287 St. George
312-288 Knoxville
312-289 Hutchinson
312-290 New Haven
312-291 El Paso
312-292 Dayton
312-293 Van Nuys
312-295 Fayetteville
312-296 Lexington
312-297 Raleigh
312-298 Tupelo
312-299 Albany
312-300 London
312-301 Fresno
312-302 Gainesville
312-303 Chicago
312-304 Providence
312-305 Savannah
312-306 Greensburg
312-307 Exton
312-308 Des Moines
312-309 Little Rock
312-310 Ogden
312-313 Lowell
312-314 Rochester
312-315 Dallas
312-316 Binghamton
312-317 Sioux City
312-318 Des Plaines
312-320 Provo
312-321 Houston
312-322 Billings
312-323 Portland
312-324 Fayetteville
312-325 Alexandria
312-326 Melbourne
312-327 Raleigh
312-328 Flint
312-329 Gaithersburg
312-330 Lynbrook
312-332 Los Angeles
312-333 Anchorage
312-334 Ada
312-335 Ann Arbor
312-336 Marquette
312-337 Green Bay
312-339 San Diego
312-340 Burlington
312-341 Reno
312-342 Montgomery
312-343 Ann Arbor
312-344 Lubbock
312-345 Cheyenne
312-346 Akron
312-347 Santa Barbara
312-348 Saint Petersburg
312-349 Eau Claire
312-350 Ontario
312-351 Kirkland
312-352 Jonesboro
312-353 Sacramento
312-354 San Jose
312-355 Roanoke
312-356 Toledo
312-357 Burlington
312-358 Toledo
312-359 Waukegan
312-360 Lynchburg
312-361 Atlanta
312-362 Racine
312-363 West Palm Beach
312-364 Mesa
312-365 Akron
312-367 Lubbock
312-368 Flint
312-369 Chicago
312-370 Topeka
312-371 Yonkers
312-372 Santa Rosa
312-373 Orlando
312-374 Fayetteville
312-375 San Francisco
312-376 Roanoke
312-377 Jonesboro
312-378 Newark
312-379 Akron
312-380 Boston
312-381 Columbia
312-382 Lynbrook
312-384 Hutchinson
312-385 Greenville
312-386 San Bernardino
312-387 Baton Rouge
312-388 Charlotte
312-389 Jackson
312-390 Exton
312-391 Virginia Beach
312-393 Tupelo
312-394 Daytona Beach
312-395 Sacramento
312-396 Spring Valley
312-397 Jersey City
312-398 Ozark
312-399 West Palm Beach
312-400 Doylestown
312-401 Cleveland
312-402 Miami
312-403 Miami
312-404 Cincinnati
312-405 Lancaster
312-406 Mason City
312-407 Knoxville
312-408 Sioux Falls
312-409 Alexandria
312-410 Pittsburgh
312-412 Los Angeles
312-413 Vancouver
312-415 Eugene
312-416 Spring Valley
312-417 Grand Island
312-418 Syracuse
312-419 Greenville
312-420 New Haven
312-421 Omaha
312-422 Cape Coral
312-423 Fayetteville
312-424 Albany
312-425 New Orleans
312-426 London
312-427 Des Moines
312-428 Providence
312-429 Sioux Falls
312-430 Tacoma
312-431 Fayetteville
312-432 Wabash
312-433 Toledo
312-434 Nashville
312-435 Tampa
312-436 Green Bay
312-437 Albany
312-440 Van Nuys
312-441 Nashville
312-442 Pittsburgh
312-443 Augusta
312-444 Mason City
312-445 St. George
312-446 Denver
312-447 Peoria
312-448 Grand Rapids
312-449 Ann Arbor
312-450 Salineville
312-451 Manchester
312-452 Jersey City
312-453 Topeka
312-454 Syracuse
312-455 Greensboro
312-456 Greensburg
312-457 Duluth
312-458 Mesa
312-459 Erie
312-460 Green Bay
312-461 Virginia Beach
312-462 West Palm Beach
312-463 Jackson
312-464 Jackson
312-465 Lynbrook
312-466 Buffalo
312-467 Racine
312-468 Boise
312-469 Plainfield
312-470 Dallas
312-471 Zanesville
312-472 Vancouver
312-473 Bakersfield
312-474 Muskegon
312-475 Melrose
312-476 Detroit
312-478 Toledo
312-479 Knoxville
312-480 Boston
312-482 Lafayette
312-483 Long Beach
312-484 Los Angeles
312-485 Roanoke
312-486 Columbus
312-487 Akron
312-488 Spokane
312-489 Greensburg
312-490 Whippany
312-491 Columbia
312-492 Chico
312-493 Albany
312-494 Jackson
312-495 Montgomery
312-496 Alexandria
312-497 Houston
312-498 Baltimore
312-499 Jackson
312-501 Wabash
312-502 Saint Petersburg
312-503 Ontario
312-504 Jersey City
312-505 Lafayette
312-506 Lexington
312-507 Tacoma
312-508 Lancaster
312-509 London
312-510 Washington
312-512 Oklahoma City
312-513 Denver
312-514 Virginia Beach
312-515 Fort Lauderdale
312-516 Erie
312-517 Kirkland
312-518 Denver
312-519 Springfield
312-520 Hartford
312-521 San Jose
312-522 Naperville
312-523 Yonkers
312-524 Albany
312-525 Albany
312-526 Grand Rapids
312-527 Huntsville
312-528 Albany
312-529 Shreveport
312-530 Manchester
312-531 Boston
312-532 Lombard
312-533 Hartford
312-534 Columbia
312-536 Vista
312-537 Wichita
312-540 Belleville
312-541 Cincinnati
312-542 Alexandria
312-543 Chattanooga
312-544 Jackson
312-545 Binghamton
312-546 Davy
312-547 Houston
312-548 Dayton
312-549 Tippecanoe
312-550 Oak Park
312-551 Santa Barbara
312-552 Jacksonville
312-553 Akron
312-554 San Diego
312-556 Santa Ana
312-557 Jersey City
312-558 Phoenix
312-559 Chicago
312-560 Alexandria
312-561 Charlotte
312-562 Reno
312-563 Wichita
312-564 Denver
312-565 Ogden
312-566 Albany
312-567 Memphis
312-568 Binghamton
312-569 Topeka
312-570 Chico
312-571 Denver
312-572 Toledo
312-573 Grand Junction
312-574 Worcester
312-575 Denver
312-576 Jacksonville
312-577 Baltimore
312-578 Sacramento
312-580 Houston
312-582 Greensboro
312-583 Phoenix
312-585 Louisville
312-587 Kirkland
312-588 Chico
312-590 Detroit
312-591 Virginia Beach
312-592 Dallas
312-593 Philadelphia
312-594 El Paso
312-595 Moorestown
312-596 Peoria
312-600 Alexandria
312-601 Columbus
312-602 Chattanooga
312-603 Asheville
312-604 Martinsville
312-605 Gulfport
312-606 Pittsburgh
312-607 Orlando
312-608 Lawton
312-609 Huntsville
312-610 Los Angeles
312-612 Sedalia
312-613 Racine
312-614 San Jose
312-615 Syracuse
312-616 Chattanooga
312-617 Lubbock
312-618 Ann Arbor
312-619 Atlantic City
312-620 Santa Rosa
312-622 Houston
312-623 Spokane
312-624 Lexington
312-625 Tacoma
312-626 Walnut Creek
312-627 Houston
312-628 Oak Park
312-629 Tulsa
312-630 Fayetteville
312-631 Clarksville
312-632 Rockville
312-633 Duluth
312-634 Columbia
312-635 San Diego
312-636 Quincy
312-637 San Bernardino
312-638 Des Plaines
312-640 Nashville
312-641 Nashville
312-642 Greenville
312-643 New Orleans
312-644 Alhambra
312-645 Rochester
312-646 Oak Park
312-647 West Palm Beach
312-648 Newark
312-649 Dallas
312-650 Charleston
312-651 Plainfield
312-652 Green Bay
312-653 Reno
312-654 Kansas City
312-655 Burlington
312-657 Greensboro
312-658 Greensburg
312-659 Waukegan
312-660 Tyler
312-661 Duluth
312-662 Tulsa
312-663 Plainfield
312-664 Jonesboro
312-665 Madison
312-666 Billings
312-667 Philadelphia
312-669 Laredo
312-670 Philadelphia
312-671 Grand Rapids
312-672 Macon
312-673 Bowling Green
312-674 Portland
312-675 Pittsburgh
312-676 Birmingham
312-677 Sarasota
312-678 Pittsburgh
312-679 Baltimore
312-680 Greenville
312-681 Cleveland
312-682 Toms River
312-683 San Antonio
312-685 Tupelo
312-688 Omaha
312-689 El Toro
312-690 Charleston
312-691 Chicago
312-692 Provo
312-693 Reading
312-694 Greenville
312-695 Seattle
312-696 London
312-697 Lubbock
312-698 Eugene
312-699 Albany
312-701 Jackson
312-702 Greensboro
312-703 Charlotte
312-704 Reading
312-705 Columbia
312-706 Roseville
312-707 Greenville
312-709 Scranton
312-710 Lowell
312-712 Knoxville
312-714 Boston
312-715 Topeka
312-716 San Antonio
312-717 Franklin
312-718 Atlanta
312-719 Akron
312-720 Lynbrook
312-721 Orlando
312-722 Shreveport
312-724 Virginia Beach
312-725 Louisville
312-726 Ogden
312-727 Oak Park
312-729 Tippecanoe
312-730 Flint
312-731 Sarasota
312-732 Louisville
312-733 Miami
312-734 Chicago
312-735 Otsego
312-737 Peoria
312-738 Syracuse
312-739 Greensboro
312-740 Lancaster
312-742 Miami
312-743 Sacramento
312-744 Grand Junction
312-745 Mobile
312-746 Chico
312-747 Erie
312-748 San Bernardino
312-749 Cape Coral
312-750 Dallas
312-751 Plainfield
312-752 Los Angeles
312-753 Nashville
312-754 Erie
312-755 Gainesville
312-756 Little Rock
312-757 Walnut Creek
312-758 Wichita
312-759 Sedalia
312-760 Huntsville
312-762 Muskegon
312-763 Buffalo
312-765 Atlanta
312-767 Virginia Beach
312-768 St. George
312-769 Columbia
312-771 Springfield
312-772 Toledo
312-774 Spring Valley
312-777 El Toro
312-778 Philadelphia
312-780 Laredo
312-781 Charlotte
312-782 Oakland
312-784 Richmond
312-785 Memphis
312-786 Greenville
312-787 Birmingham
312-788 Wichita Falls
312-789 Fresno
312-790 Jacksonville
312-791 Knoxville
312-792 Greenville
312-793 Detroit
312-794 Indianapolis
312-795 Gary
312-798 Chattanooga
312-799 Los Angeles
312-801 Greenville
312-802 Chicago
312-803 Atlanta
312-804 Vancouver
312-805 Topeka
312-806 Jonesboro
312-807 Tulsa
312-808 Doylestown
312-809 Jackson
312-810 Augusta
312-812 Fort Worth
312-814 New Haven
312-816 Roanoke
312-817 Billings
312-818 Gainesville
312-819 Eau Claire
312-820 Honolulu
312-821 Toms River
312-822 Baltimore
312-823 Cedar Rapids
312-827 Van Nuys
312-828 Shreveport
312-829 Fort Worth
312-830 Vista
312-831 Honolulu
312-832 Miami
312-833 Chicago
312-834 Phoenix
312-835 Dallas
312-836 Muncie
312-837 New Haven
312-839 New Orleans
312-840 Greenville
312-841 Pikesville
312-842 Fort Lauderdale
312-843 Toledo
312-844 Los Angeles
312-845 Macon
312-846 Albany
312-848 Eau Claire
312-849 Walnut Creek
312-850 Fort Worth
312-851 Jersey City
312-852 Chicago
312-853 Cincinnati
312-854 Atlanta
312-855 Van Nuys
312-856 Memphis
312-857 Akron
312-859 Greenville
312-860 Saint Cloud
312-861 Gaithersburg
312-862 Fresno
312-863 Columbus
312-864 Gaithersburg
312-865 Pikesville
312-866 Manchester
312-867 Columbia
312-869 Ann Arbor
312-870 Kirkland
312-871 Colorado Springs
312-873 Lancaster
312-874 Alhambra
312-875 Compton
312-876 Jackson
312-877 Charleston
312-878 Marquette
312-879 Dayton
312-880 Portland
312-881 Baton Rouge
312-882 Ontario
312-883 Burlington
312-884 Kansas City
312-885 Newark
312-886 Syracuse
312-887 Eugene
312-888 New Orleans
312-889 New Haven
312-890 Newark
312-891 Van Nuys
312-893 Spring Valley
312-894 Lubbock
312-895 Billings
312-896 Royal Oak
312-897 San Francisco
312-898 Melbourne
312-899 Sioux Falls
312-901 Appling
312-902 Wilmington
312-903 Nashville
312-904 Charleston
312-905 Lowell
312-906 Tulsa
312-907 Huntsville
312-908 Chattanooga
312-909 Fort Worth
312-910 San Diego
312-912 Grand Island
312-913 Huntington
312-914 Dallas
312-915 Exton
312-916 Grand Island
312-917 Springfield
312-918 Toms River
312-919 Dallas
312-920 Denver
312-921 Wabash
312-922 Greenville
312-923 Tyler
312-924 Burlington
312-925 Alexandria
312-926 Muncie
312-927 Honolulu
312-928 West Palm Beach
312-929 Greenville
312-930 Hartford
312-931 Augusta
312-932 Dayton
312-933 Atlantic City
312-934 Rochester
312-935 Gainesville
312-936 Wichita Falls
312-937 Charleston
312-938 Saint Petersburg
312-939 Oak Park
312-940 Lansing
312-941 Flint
312-942 Lexington
312-943 Rochester
312-944 Fresno
312-945 Des Moines
312-946 Charleston
312-947 Champaign
312-948 Huntington
312-949 Lansing
312-951 Philadelphia
312-952 Toledo
312-953 San Francisco
312-954 Atlanta
312-955 Alexandria
312-956 Manchester
312-957 Tyler
312-960 Detroit
312-961 San Diego
312-962 Roanoke
312-963 Clarksville
312-964 Richmond
312-965 Huntington Beach
312-966 Charlotte
312-967 Miami
312-968 Jonesboro
312-969 Bowling Green
312-970 Phoenix
312-972 Ada
312-973 Chicago
312-974 Tyler
312-975 Binghamton
312-977 West Palm Beach
312-978 Lexington
312-979 Quincy
312-980 New Orleans
312-981 Manchester
312-982 San Diego
312-983 Wilmington
312-984 Philadelphia
312-985 Hackensack
312-986 Saginaw
312-987 Kirkland
312-988 Portland
312-989 Orlando
312-990 Shreveport
312-991 Washington
312-992 Fargo
312-993 Daytona Beach
312-994 Dayton
312-995 Erie
312-996 Akron
312-997 Atlanta
312-998 Toledo
312-999 New Orleans