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773 area code

Area code 773 is in Illinois (IL), USA serving the city of Chicago.

Area code 773 has been in service since October 12, 1996 and is the older Numbering Plan Area in overlay complex 773/872 (overlaying area codes cover the same geographic area).

Chicago's business center, also known as the Loop, uses these overlaying area codes: 312/872, with the latter covering the entire city.

07:57:55 PM is the current time in area code 773 (Central Time).

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Map of area code 773

More Illinois area codes

NPANXX1 Area served2 Date3
773-201 Chicago Zone 01
773-202 Chicago Zone 03
773-203 Chicago Zone 01
773-204 Chicago Zone 01
773-205 Chicago Zone 03
773-206 Chicago Zone 01
773-207 Chicago Zone 10 8/7/2019
773-208 Chicago Zone 01
773-209 Chicago Zone 03
773-210 Chicago Zone 01
773-212 Chicago Zone 03
773-213 Chicago Zone 01
773-214 Chicago Zone 01
773-215 Chicago Zone 01
773-216 Chicago Zone 01
773-217 Chicago Zone 09 5/19/2009
773-218 Chicago Zone 01
773-219 Chicago Zone 07
773-220 Chicago Zone 03
773-221 Chicago Zone 09
773-222 Chicago Zone 01
773-223 Chicago Zone 06
773-224 Chicago Zone 07
773-225 Chicago Zone 03 3/15/2006
773-226 Chicago Zone 10 11/27/2007
773-227 Chicago Zone 04
773-228 Chicago Zone 01
773-229 Chicago Zone 08
773-230 Chicago Zone 03
773-231 Chicago Zone 07 9/8/2011
773-232 Chicago Zone 10 2/5/2020
773-233 Chicago Zone 10
773-234 Chicago Zone 06 6/26/2009
773-235 Chicago Zone 04
773-236 Chicago Zone 07 6/26/2009
773-237 Chicago Zone 05
773-238 Chicago Zone 10
773-239 Chicago Zone 10
773-240 Chicago Zone 10 10/16/2007
773-241 Chicago Zone 07
773-242 Chicago Zone 06
773-243 Chicago Zone 03
773-244 Chicago Zone 04
773-245 Chicago Zone 08 6/16/2010
773-246 Chicago Zone 04
773-247 Chicago Zone 06
773-248 Chicago Zone 04
773-249 Chicago Zone 11
773-250 Chicago Zone 02
773-251 Chicago Zone 03
773-252 Chicago Zone 04
773-253 Chicago Zone 10
773-254 Chicago Zone 06
773-255 Chicago Zone 03
773-256 Chicago Zone 07
773-257 Chicago Zone 06
773-258 Chicago Zone 01
773-259 Chicago Zone 01
773-260 Chicago Zone 10
773-261 Chicago Zone 05
773-262 Chicago Zone 02
773-263 Chicago Zone 03
773-264 Chicago Zone 10
773-265 Chicago Zone 06
773-266 Chicago Zone 01
773-267 Chicago Zone 02
773-268 Chicago Zone 07
773-269 Chicago Zone 04
773-270 Chicago Zone 04 6/4/2009
773-271 Chicago Zone 02
773-272 Chicago Zone 03
773-273 Chicago Zone 02
773-274 Chicago Zone 02
773-275 Chicago Zone 02
773-276 Chicago Zone 04
773-277 Chicago Zone 06
773-278 Chicago Zone 04
773-279 Chicago Zone 02
773-280 Chicago Zone 06
773-281 Chicago Zone 04
773-282 Chicago Zone 03
773-283 Chicago Zone 03
773-284 Chicago Zone 08
773-285 Chicago Zone 07
773-286 Chicago Zone 03
773-287 Chicago Zone 05
773-288 Chicago Zone 07
773-289 Chicago Zone 04
773-290 Chicago Zone 02
773-291 Chicago Zone 10
773-292 Chicago Zone 04
773-293 Chicago Zone 02
773-294 Chicago Zone 03
773-295 Chicago Zone 05
773-296 Chicago Zone 04
773-297 Chicago Zone 03
773-298 Chicago Zone 10
773-299 Chicago Zone 06
773-301 Chicago Zone 03
773-302 Chicago Zone 02 2/26/2009
773-303 Chicago Zone 02
773-304 Chicago Zone 03
773-305 Chicago Zone 04
773-306 Chicago Zone 08
773-307 Chicago Zone 01
773-308 Chicago Zone 03
773-309 Chicago Zone 05
773-310 Chicago Zone 10 3/22/2004
773-312 Chicago Zone 02
773-313 Chicago Zone 02
773-314 Chicago Zone 03
773-315 Chicago Zone 01
773-316 Chicago Zone 01
773-317 Chicago Zone 01
773-318 Chicago Zone 03 9/7/2004
773-319 Chicago Zone 10
773-320 Chicago Zone 01
773-321 Chicago Zone 06
773-322 Chicago Zone 07
773-323 Chicago Zone 02 4/16/2001
773-324 Chicago Zone 07
773-325 Chicago Zone 04
773-326 Chicago Zone 07
773-327 Chicago Zone 04
773-328 Chicago Zone 04
773-329 Chicago Zone 03
773-330 Chicago Zone 01
773-331 Chicago Zone 03
773-332 Chicago Zone 03
773-333 Chicago Zone 02 4/16/2001
773-334 Chicago Zone 02
773-335 Chicago Zone 01
773-336 Chicago Zone 09
773-337 Chicago Zone 11
773-338 Chicago Zone 02
773-339 Chicago Zone 01
773-340 Chicago Zone 08
773-341 Chicago Zone 10
773-342 Chicago Zone 04
773-343 Chicago Zone 01
773-344 Chicago Zone 10
773-345 Chicago Zone 05
773-346 Chicago Zone 06
773-347 Chicago Zone 07
773-348 Chicago Zone 04
773-349 Chicago Zone 08
773-350 Chicago Zone 01
773-351 Chicago Zone 01
773-352 Chicago Zone 03 7/1/2021
773-353 Chicago Zone 03
773-354 Chicago Zone 01
773-355 Chicago Zone 03 4/12/2001
773-356 Chicago Zone 09
773-357 Chicago Zone 11
773-358 Chicago Zone 07
773-359 Chicago Zone 09
773-360 Chicago Zone 04
773-361 Chicago Zone 07
773-362 Chicago Zone 08
773-363 Chicago Zone 07
773-364 Chicago Zone 09 4/12/2001
773-365 Chicago Zone 04
773-366 Chicago Zone 10 9/24/2004
773-367 Chicago Zone 03 2/13/2009
773-368 Chicago Zone 03
773-369 Chicago Zone 01
773-370 Chicago Zone 01
773-371 Chicago Zone 07
773-372 Chicago Zone 03 7/7/2008
773-373 Chicago Zone 07
773-374 Chicago Zone 09
773-375 Chicago Zone 09
773-376 Chicago Zone 06
773-377 Chicago Zone 11
773-378 Chicago Zone 05
773-379 Chicago Zone 05
773-380 Chicago Zone 03
773-381 Chicago Zone 02
773-382 Chicago Zone 09 4/12/2001
773-383 Chicago Zone 03
773-384 Chicago Zone 04
773-385 Chicago Zone 05
773-386 Chicago Zone 01
773-387 Chicago Zone 10 6/9/2004
773-388 Chicago Zone 04
773-389 Chicago Zone 09
773-390 Chicago Zone 01
773-391 Chicago Zone 01
773-392 Chicago Zone 01
773-393 Chicago Zone 01
773-394 Chicago Zone 04
773-395 Chicago Zone 04
773-396 Chicago Zone 10 4/12/2001
773-397 Chicago Zone 03 3/10/2009
773-398 Chicago Zone 03
773-399 Chicago Zone 03
773-400 Chicago Zone 02 4/16/2001
773-401 Chicago Zone 01
773-402 Chicago Zone 01
773-403 Chicago Zone 03
773-404 Chicago Zone 04
773-405 Chicago Zone 01
773-406 Chicago Zone 07
773-407 Chicago Zone 03
773-408 Chicago Zone 06 2/13/2009
773-409 Chicago Zone 02
773-410 Chicago Zone 02
773-412 Chicago Zone 03
773-413 Chicago Zone 05
773-414 Chicago Zone 03 9/7/2004
773-415 Chicago Zone 01
773-416 Chicago Zone 01
773-417 Chicago Zone 05
773-418 Chicago Zone 03
773-419 Chicago Zone 01
773-420 Chicago Zone 07
773-421 Chicago Zone 01
773-422 Chicago Zone 01
773-423 Chicago Zone 02
773-424 Chicago Zone 08
773-425 Chicago Zone 03
773-426 Chicago Zone 03 1/4/2002
773-427 Chicago Zone 03
773-428 Chicago Zone 01
773-429 Chicago Zone 10
773-430 Chicago Zone 03
773-431 Chicago Zone 03 11/5/2008
773-432 Chicago Zone 08
773-433 Chicago Zone 02
773-434 Chicago Zone 08
773-435 Chicago Zone 04
773-436 Chicago Zone 08
773-437 Chicago Zone 09
773-438 Chicago Zone 01
773-439 Chicago Zone 03
773-440 Chicago Zone 10
773-441 Chicago Zone 03 8/21/2008
773-442 Chicago Zone 02
773-443 Chicago Zone 01
773-444 Chicago Zone 03
773-445 Chicago Zone 10
773-446 Chicago Zone 06
773-447 Chicago Zone 01
773-448 Chicago Zone 01
773-449 Chicago Zone 09
773-450 Chicago Zone 01
773-451 Chicago Zone 07
773-452 Chicago Zone 01
773-453 Chicago Zone 11
773-454 Chicago Zone 03
773-455 Chicago Zone 11
773-456 Chicago Zone 03
773-457 Chicago Zone 07
773-458 Chicago Zone 03
773-459 Chicago Zone 01
773-460 Chicago Zone 01
773-461 Chicago Zone 01
773-462 Chicago Zone 11
773-463 Chicago Zone 02
773-464 Chicago Zone 01
773-465 Chicago Zone 02
773-466 Chicago Zone 05
773-467 Chicago Zone 03
773-468 Chicago Zone 10
773-469 Chicago Zone 01
773-470 Chicago Zone 08
773-471 Chicago Zone 08
773-472 Chicago Zone 04
773-473 Chicago Zone 05
773-474 Chicago Zone 10 4/12/2001
773-475 Chicago Zone 06
773-476 Chicago Zone 08
773-477 Chicago Zone 04
773-478 Chicago Zone 02
773-479 Chicago Zone 05
773-480 Chicago Zone 01
773-481 Chicago Zone 03
773-482 Chicago Zone 11 4/12/2001
773-483 Chicago Zone 07
773-484 Chicago Zone 07
773-485 Chicago Zone 01
773-486 Chicago Zone 04
773-487 Chicago Zone 07
773-488 Chicago Zone 07
773-489 Chicago Zone 04
773-490 Chicago Zone 03
773-491 Chicago Zone 03
773-492 Chicago Zone 08 8/23/2011
773-493 Chicago Zone 07
773-494 Chicago Zone 03 10/13/2004
773-495 Chicago Zone 01
773-496 Chicago Zone 07 4/12/2001
773-497 Chicago Zone 01
773-498 Chicago Zone 08
773-499 Chicago Zone 03 9/28/2004
773-501 Chicago Zone 03 2/12/2001
773-502 Chicago Zone 01
773-503 Chicago Zone 10 11/17/2004
773-504 Chicago Zone 01
773-505 Chicago Zone 01
773-506 Chicago Zone 02
773-507 Chicago Zone 03 2/14/2001
773-508 Chicago Zone 02
773-509 Chicago Zone 02
773-510 Chicago Zone 03 4/4/2002
773-512 Chicago Zone 03 10/13/2004
773-513 Chicago Zone 01
773-514 Chicago Zone 02 4/16/2001
773-515 Chicago Zone 01
773-516 Chicago Zone 02
773-517 Chicago Zone 01
773-518 Chicago Zone 01
773-519 Chicago Zone 01
773-520 Chicago Zone 01
773-521 Chicago Zone 06
773-522 Chicago Zone 06
773-523 Chicago Zone 06
773-524 Chicago Zone 04
773-525 Chicago Zone 04
773-526 Chicago Zone 08 4/12/2001
773-527 Chicago Zone 03
773-528 Chicago Zone 04
773-529 Chicago Zone 04
773-530 Chicago Zone 09 12/30/2004
773-531 Chicago Zone 03
773-532 Chicago Zone 01
773-533 Chicago Zone 06
773-534 Chicago Zone 06
773-535 Chicago Zone 06
773-536 Chicago Zone 07
773-537 Chicago Zone 04 5/24/2004
773-538 Chicago Zone 07
773-539 Chicago Zone 02
773-540 Chicago Zone 03 12/28/2004
773-541 Chicago Zone 02
773-542 Chicago Zone 06
773-543 Chicago Zone 04 10/26/2007
773-544 Chicago Zone 01
773-545 Chicago Zone 03
773-546 Chicago Zone 10
773-547 Chicago Zone 01
773-548 Chicago Zone 07
773-549 Chicago Zone 04
773-550 Chicago Zone 01
773-551 Chicago Zone 03
773-552 Chicago Zone 01
773-553 Chicago Zone 06
773-554 Chicago Zone 03 7/1/2009
773-556 Chicago Zone 03
773-557 Chicago Zone 03
773-558 Chicago Zone 03 1/15/2007
773-559 Chicago Zone 03 1/10/2005
773-560 Chicago Zone 01
773-561 Chicago Zone 02
773-562 Chicago Zone 03
773-563 Chicago Zone 10 10/19/2005
773-564 Chicago Zone 02
773-565 Chicago Zone 06 5/21/2004
773-566 Chicago Zone 01
773-567 Chicago Zone 03 4/22/2005
773-568 Chicago Zone 10
773-569 Chicago Zone 03
773-570 Chicago Zone 11
773-571 Chicago Zone 07 2/20/2007
773-572 Chicago Zone 04
773-573 Chicago Zone 07
773-574 Chicago Zone 10 3/21/2006
773-575 Chicago Zone 03
773-576 Chicago Zone 01
773-577 Chicago Zone 03 4/12/2001
773-578 Chicago Zone 01
773-579 Chicago Zone 06
773-580 Chicago Zone 03
773-581 Chicago Zone 08
773-582 Chicago Zone 08
773-583 Chicago Zone 02
773-584 Chicago Zone 06
773-585 Chicago Zone 08
773-586 Chicago Zone 08
773-587 Chicago Zone 03 1/8/2007
773-588 Chicago Zone 02
773-589 Chicago Zone 05
773-590 Chicago Zone 01
773-591 Chicago Zone 01
773-592 Chicago Zone 03
773-593 Chicago Zone 01
773-594 Chicago Zone 03
773-595 Chicago Zone 07 10/30/2006
773-596 Chicago Zone 02 4/12/2001
773-597 Chicago Zone 07 1/21/2005
773-598 Chicago Zone 04
773-599 Chicago Zone 08
773-600 Chicago Zone 10 7/20/2004
773-601 Chicago Zone 11
773-602 Chicago Zone 07
773-603 Chicago Zone 10 6/30/2005
773-604 Chicago Zone 02
773-605 Chicago Zone 02 4/5/2006
773-606 Chicago Zone 03 7/14/2005
773-607 Chicago Zone 01
773-608 Chicago Zone 01
773-609 Chicago Zone 10
773-610 Chicago Zone 03 10/17/2001
773-612 Chicago Zone 01
773-613 Chicago Zone 01
773-614 Chicago Zone 10 11/8/2006
773-615 Chicago Zone 10 11/30/2001
773-616 Chicago Zone 01
773-617 Chicago Zone 01
773-618 Chicago Zone 01
773-619 Chicago Zone 03 3/9/2001
773-620 Chicago Zone 03
773-621 Chicago Zone 03 10/10/2005
773-622 Chicago Zone 05
773-623 Chicago Zone 01
773-624 Chicago Zone 07
773-625 Chicago Zone 05
773-626 Chicago Zone 05
773-627 Chicago Zone 08 4/12/2001
773-628 Chicago Zone 03
773-629 Chicago Zone 10 11/8/2006
773-630 Chicago Zone 03 3/10/2009
773-631 Chicago Zone 03
773-632 Chicago Zone 03
773-633 Chicago Zone 07
773-634 Chicago Zone 04
773-635 Chicago Zone 06
773-636 Chicago Zone 01
773-637 Chicago Zone 05
773-638 Chicago Zone 06
773-639 Chicago Zone 03 10/17/2007
773-640 Chicago Zone 06 4/12/2001
773-641 Chicago Zone 03 9/13/2005
773-642 Chicago Zone 03 3/15/2007
773-643 Chicago Zone 07
773-644 Chicago Zone 02 1/5/2011
773-645 Chicago Zone 04
773-646 Chicago Zone 09
773-647 Chicago Zone 03 10/17/2007
773-648 Chicago Zone 06 4/12/2001
773-649 Chicago Zone 02 4/12/2001
773-650 Chicago Zone 06
773-651 Chicago Zone 07
773-652 Chicago Zone 01
773-653 Chicago Zone 03
773-654 Chicago Zone 02 4/12/2001
773-655 Chicago Zone 03 3/27/2002
773-656 Chicago Zone 10 6/30/2005
773-657 Chicago Zone 03 3/5/2007
773-658 Chicago Zone 05
773-659 Chicago Zone 01
773-660 Chicago Zone 10
773-661 Chicago Zone 04 4/12/2001
773-662 Chicago Zone 01
773-663 Chicago Zone 03
773-664 Chicago Zone 05 4/12/2001
773-665 Chicago Zone 04
773-666 Chicago Zone 04 5/20/2011
773-667 Chicago Zone 07
773-668 Chicago Zone 05 4/27/2006
773-669 Chicago Zone 05 6/8/2009
773-670 Chicago Zone 03
773-671 Chicago Zone 01
773-672 Chicago Zone 10 2/29/2008
773-673 Chicago Zone 05 4/12/2001
773-674 Chicago Zone 06 5/15/2008
773-675 Chicago Zone 07 7/7/2008
773-676 Chicago Zone 05
773-677 Chicago Zone 03 3/7/2002
773-678 Chicago Zone 03 2/21/2005
773-679 Chicago Zone 10 7/26/2006
773-680 Chicago Zone 03 2/2/2001
773-681 Chicago Zone 02
773-682 Chicago Zone 03 10/17/2005
773-683 Chicago Zone 03 1/23/2008
773-684 Chicago Zone 07
773-685 Chicago Zone 03
773-686 Chicago Zone 11
773-687 Chicago Zone 04
773-688 Chicago Zone 05 7/27/2004
773-689 Chicago Zone 01
773-690 Chicago Zone 07 11/5/2008
773-691 Chicago Zone 08 7/10/2007
773-692 Chicago Zone 04 1/31/2019
773-693 Chicago Zone 03
773-694 Chicago Zone 11
773-695 Chicago Zone 03
773-696 Chicago Zone 06
773-697 Chicago Zone 04 4/12/2001
773-698 Chicago Zone 04 6/13/2007
773-699 Chicago Zone 03 4/19/2005
773-701 Chicago Zone 10 9/30/2005
773-702 Chicago Zone 07
773-703 Chicago Zone 10 9/2/2008
773-704 Chicago Zone 03 1/23/2002
773-705 Chicago Zone 10 6/28/2006
773-706 Chicago Zone 03 7/18/2005
773-707 Chicago Zone 10 11/5/2008
773-708 Chicago Zone 10 11/5/2008
773-709 Chicago Zone 03 11/5/2008
773-710 Chicago Zone 03 4/16/2001
773-712 Chicago Zone 03 11/5/2008
773-713 Chicago Zone 02
773-714 Chicago Zone 03
773-715 Chicago Zone 06 10/16/2002
773-716 Chicago Zone 01
773-717 Chicago Zone 07 9/16/2008
773-718 Chicago Zone 01
773-719 Chicago Zone 01
773-720 Chicago Zone 01
773-721 Chicago Zone 09
773-722 Chicago Zone 06
773-723 Chicago Zone 07
773-724 Chicago Zone 03 10/17/2005
773-725 Chicago Zone 03
773-726 Chicago Zone 07 4/12/2001
773-727 Chicago Zone 10 10/16/2002
773-728 Chicago Zone 02
773-729 Chicago Zone 07 4/12/2001
773-730 Chicago Zone 02
773-731 Chicago Zone 09
773-732 Chicago Zone 03
773-733 Chicago Zone 06 4/12/2001
773-734 Chicago Zone 09
773-735 Chicago Zone 08
773-736 Chicago Zone 03
773-737 Chicago Zone 08
773-738 Chicago Zone 03 8/29/2007
773-739 Chicago Zone 02
773-740 Chicago Zone 02 4/16/2001
773-741 Chicago Zone 11
773-742 Chicago Zone 03 11/5/2001
773-743 Chicago Zone 02
773-744 Chicago Zone 06 8/30/2001
773-745 Chicago Zone 05
773-746 Chicago Zone 03
773-747 Chicago Zone 04 1/7/2008
773-748 Chicago Zone 10
773-749 Chicago Zone 03 6/19/2007
773-750 Chicago Zone 03 9/13/2001
773-751 Chicago Zone 02
773-752 Chicago Zone 07
773-753 Chicago Zone 07
773-754 Chicago Zone 02 10/24/2006
773-755 Chicago Zone 04
773-756 Chicago Zone 03
773-757 Chicago Zone 08 6/28/2001
773-758 Chicago Zone 01
773-759 Chicago Zone 03 5/21/2002
773-760 Chicago Zone 01
773-761 Chicago Zone 02
773-762 Chicago Zone 06
773-763 Chicago Zone 03
773-764 Chicago Zone 02
773-765 Chicago Zone 02
773-766 Chicago Zone 03 9/15/2008
773-767 Chicago Zone 08
773-768 Chicago Zone 09
773-769 Chicago Zone 02
773-770 Chicago Zone 04
773-771 Chicago Zone 01
773-772 Chicago Zone 04
773-774 Chicago Zone 03
773-775 Chicago Zone 03
773-776 Chicago Zone 08
773-777 Chicago Zone 03
773-778 Chicago Zone 08
773-779 Chicago Zone 10
773-780 Chicago Zone 08
773-781 Chicago Zone 01 4/23/2001
773-782 Chicago Zone 04
773-783 Chicago Zone 07
773-784 Chicago Zone 02
773-785 Chicago Zone 10
773-786 Chicago Zone 05
773-787 Chicago Zone 10
773-788 Chicago Zone 08
773-789 Chicago Zone 08 7/12/2007
773-790 Chicago Zone 03
773-791 Chicago Zone 03 5/25/2001
773-792 Chicago Zone 03
773-793 Chicago Zone 03
773-794 Chicago Zone 03
773-795 Chicago Zone 07
773-796 Chicago Zone 02 11/1/2010
773-797 Chicago Zone 05
773-798 Chicago Zone 07 8/21/2008
773-799 Chicago Zone 04
773-800 Chicago Zone 02 6/25/2009
773-801 Chicago Zone 06 5/19/2006
773-802 Chicago Zone 01
773-803 Chicago Zone 03 3/15/2007
773-804 Chicago Zone 05
773-805 Chicago Zone 01
773-806 Chicago Zone 01
773-807 Chicago Zone 02 8/15/2002
773-808 Chicago Zone 07
773-809 Chicago Zone 03 9/8/2008
773-810 Chicago Zone 01
773-812 Chicago Zone 03 3/23/2009
773-813 Chicago Zone 01
773-814 Chicago Zone 03 7/22/2002
773-815 Chicago Zone 03 3/31/2009
773-816 Chicago Zone 10 3/28/2005
773-817 Chicago Zone 03 10/16/2002
773-818 Chicago Zone 01
773-819 Chicago Zone 07
773-820 Chicago Zone 01
773-821 Chicago Zone 10
773-822 Chicago Zone 06
773-823 Chicago Zone 06
773-824 Chicago Zone 03
773-825 Chicago Zone 11
773-826 Chicago Zone 06
773-827 Chicago Zone 06
773-828 Chicago Zone 02
773-829 Chicago Zone 04
773-830 Chicago Zone 05
773-831 Chicago Zone 11
773-832 Chicago Zone 04
773-833 Chicago Zone 01
773-834 Chicago Zone 07
773-835 Chicago Zone 01
773-836 Chicago Zone 05
773-837 Chicago Zone 04 8/8/2001
773-838 Chicago Zone 08
773-839 Chicago Zone 04 11/23/2015
773-840 Chicago Zone 10 6/23/2006
773-841 Chicago Zone 01
773-842 Chicago Zone 01
773-843 Chicago Zone 06
773-844 Chicago Zone 03 5/25/2001
773-845 Chicago Zone 01 4/23/2001
773-846 Chicago Zone 07
773-847 Chicago Zone 06
773-848 Chicago Zone 01
773-849 Chicago Zone 03 2/20/2007
773-850 Chicago Zone 03 8/21/2008
773-851 Chicago Zone 07 3/9/2001
773-852 Chicago Zone 01
773-853 Chicago Zone 03 10/3/2006
773-854 Chicago Zone 05
773-855 Chicago Zone 07
773-856 Chicago Zone 02
773-857 Chicago Zone 04
773-858 Chicago Zone 02 7/6/2001
773-859 Chicago Zone 01
773-860 Chicago Zone 01
773-861 Chicago Zone 04 2/23/2007
773-862 Chicago Zone 04
773-863 Chicago Zone 08
773-864 Chicago Zone 03
773-865 Chicago Zone 02 8/30/2001
773-866 Chicago Zone 02
773-867 Chicago Zone 03
773-868 Chicago Zone 04
773-869 Chicago Zone 06
773-870 Chicago Zone 03 8/6/2002
773-871 Chicago Zone 04
773-873 Chicago Zone 07
773-874 Chicago Zone 07
773-875 Chicago Zone 08 9/6/2001
773-876 Chicago Zone 03 3/20/2006
773-877 Chicago Zone 03 7/21/2006
773-878 Chicago Zone 02
773-879 Chicago Zone 01
773-880 Chicago Zone 04
773-881 Chicago Zone 10
773-882 Chicago Zone 01
773-883 Chicago Zone 04
773-884 Chicago Zone 08
773-885 Chicago Zone 03 3/8/2005
773-886 Chicago Zone 07 10/31/2007
773-887 Chicago Zone 05
773-888 Chicago Zone 04 6/25/2009
773-889 Chicago Zone 05
773-890 Chicago Zone 06
773-891 Chicago Zone 07 10/18/2006
773-892 Chicago Zone 07
773-893 Chicago Zone 06
773-894 Chicago Zone 11
773-895 Chicago Zone 01 8/30/2001
773-896 Chicago Zone 07
773-897 Chicago Zone 02 3/28/2008
773-898 Chicago Zone 01
773-899 Chicago Zone 03 3/15/2006
773-900 Chicago Zone 03 8/19/2019
773-901 Chicago Zone 10 5/15/2009
773-902 Chicago Zone 09
773-903 Chicago Zone 02 4/16/2001
773-904 Chicago Zone 04 5/12/2008
773-905 Chicago Zone 10
773-906 Chicago Zone 11
773-907 Chicago Zone 02
773-908 Chicago Zone 01
773-909 Chicago Zone 01
773-910 Chicago Zone 01
773-912 Chicago Zone 08
773-913 Chicago Zone 09
773-914 Chicago Zone 01
773-915 Chicago Zone 07
773-916 Chicago Zone 06 8/31/2010
773-917 Chicago Zone 11
773-918 Chicago Zone 08
773-919 Chicago Zone 01
773-920 Chicago Zone 06
773-921 Chicago Zone 05
773-922 Chicago Zone 05
773-923 Chicago Zone 03 5/1/2020
773-924 Chicago Zone 07
773-925 Chicago Zone 08
773-926 Chicago Zone 07
773-927 Chicago Zone 06
773-928 Chicago Zone 10
773-929 Chicago Zone 04
773-930 Chicago Zone 03 1/8/2007
773-931 Chicago Zone 10 5/23/2001
773-932 Chicago Zone 03
773-933 Chicago Zone 09
773-934 Chicago Zone 03 8/21/2002
773-935 Chicago Zone 04
773-936 Chicago Zone 07 8/30/2001
773-937 Chicago Zone 08
773-938 Chicago Zone 04
773-939 Chicago Zone 08 2/21/2007
773-940 Chicago Zone 06 11/17/2008
773-941 Chicago Zone 10 11/27/2007
773-942 Chicago Zone 02
773-943 Chicago Zone 02 9/3/2010
773-944 Chicago Zone 02
773-945 Chicago Zone 05 6/25/2008
773-946 Chicago Zone 10 5/22/2007
773-947 Chicago Zone 07
773-948 Chicago Zone 08
773-949 Chicago Zone 03 2/24/2011
773-951 Chicago Zone 03 10/16/2006
773-952 Chicago Zone 07 6/14/2007
773-953 Chicago Zone 03 8/29/2007
773-954 Chicago Zone 10 9/30/2005
773-955 Chicago Zone 07
773-956 Chicago Zone 06 9/4/2008
773-957 Chicago Zone 03
773-960 Chicago Zone 03
773-961 Chicago Zone 02
773-962 Chicago Zone 07
773-963 Chicago Zone 03 7/17/2007
773-964 Chicago Zone 10 8/21/2007
773-965 Chicago Zone 01
773-966 Chicago Zone 07 4/27/2006
773-967 Chicago Zone 09
773-968 Chicago Zone 03 2/12/2001
773-969 Chicago Zone 04 1/7/2008
773-970 Chicago Zone 10 5/15/2009
773-971 Chicago Zone 10 7/11/2007
773-972 Chicago Zone 01
773-973 Chicago Zone 02
773-974 Chicago Zone 11
773-975 Chicago Zone 04
773-977 Chicago Zone 02
773-978 Chicago Zone 09
773-979 Chicago Zone 10 6/8/2006
773-980 Chicago Zone 10 5/15/2008
773-981 Chicago Zone 10
773-982 Chicago Zone 10 2/29/2008
773-983 Chicago Zone 10 3/28/2002
773-984 Chicago Zone 03 3/15/2007
773-985 Chicago Zone 11
773-986 Chicago Zone 08 10/16/2007
773-987 Chicago Zone 10 3/28/2005
773-988 Chicago Zone 01
773-989 Chicago Zone 02
773-990 Chicago Zone 03 3/20/2006
773-991 Chicago Zone 03
773-992 Chicago Zone 03
773-993 Chicago Zone 03 2/18/2011
773-994 Chicago Zone 07
773-995 Chicago Zone 10
773-996 Chicago Zone 08 10/16/2007
773-997 Chicago Zone 02 10/28/2008
773-998 Chicago Zone 10 5/15/2009
773-999 Chicago Zone 05 5/15/2009
  1. The NPA is the Numbering Plan Area (area code) and NXX is the central office code.
  2. For 'Area served' we list the rate center. In the North American Numbering Plan a rate center is a geographic area used to determine local calling boundaries for billing purposes. Its name is generally a locality, often not the only one served by an NPA-NXX combination.
  3. The assignment date. If no date is shown the exchange code was assigned before 2001.

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List of cities in area code 773

City4 County Time5
Chicago Cook C
  1. Listed in the table above are most, often not all places served by area code 773. When two or more places with the same name are located in the same state we list the largest one only. Cities with population over 50,000 are displayed in bold text.
  2. C stands for Central Time (currently 07:57:55 PM).

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