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773 Area Code

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

In service since October 12, 1996, area code 773 is the parent Numbering Plan Area in overlay complex 773/872 (overlaying NPAs cover the same area).

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

The current time for places served by area code 773 is 01:59:25 PM (Central Time Zone).

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773 phone number location

NPANXX Area served1 Date2
773-200 Chicago Zone 02 05/18/2023
773-201 Chicago Zone 01 N/A
773-202 Chicago Zone 03 N/A
773-203 Chicago Zone 01 N/A
773-204 Chicago Zone 01 N/A
773-205 Chicago Zone 03 N/A
773-206 Chicago Zone 01 N/A
773-207 Chicago Zone 10 8/7/2019
773-208 Chicago Zone 01 N/A
773-209 Chicago Zone 03 N/A
773-210 Chicago Zone 01 N/A
773-212 Chicago Zone 03 N/A
773-213 Chicago Zone 01 N/A
773-214 Chicago Zone 01 N/A
773-215 Chicago Zone 01 N/A
773-216 Chicago Zone 01 N/A
773-217 Chicago Zone 09 5/19/2009
773-218 Chicago Zone 01 N/A
773-219 Chicago Zone 07 N/A
773-220 Chicago Zone 03 N/A
773-221 Chicago Zone 09 N/A
773-222 Chicago Zone 01 N/A
773-223 Chicago Zone 06 N/A
773-224 Chicago Zone 07 N/A
773-225 Chicago Zone 03 3/15/2006
773-226 Chicago Zone 10 11/27/2007
773-227 Chicago Zone 04 N/A
773-228 Chicago Zone 01 N/A
773-229 Chicago Zone 08 N/A
773-230 Chicago Zone 03 N/A
773-231 Chicago Zone 07 9/8/2011
773-232 Chicago Zone 10 2/5/2020
773-233 Chicago Zone 10 N/A
773-234 Chicago Zone 06 6/26/2009
773-235 Chicago Zone 04 N/A
773-236 Chicago Zone 07 6/26/2009
773-237 Chicago Zone 05 N/A
773-238 Chicago Zone 10 N/A
773-239 Chicago Zone 10 N/A
773-240 Chicago Zone 10 10/16/2007
773-241 Chicago Zone 07 N/A
773-242 Chicago Zone 06 N/A
773-243 Chicago Zone 03 N/A
773-244 Chicago Zone 04 N/A
773-245 Chicago Zone 08 6/16/2010
773-246 Chicago Zone 04 N/A
773-247 Chicago Zone 06 N/A
773-248 Chicago Zone 04 N/A
773-249 Chicago Zone 11 N/A
773-250 Chicago Zone 02 N/A
773-251 Chicago Zone 03 N/A
773-252 Chicago Zone 04 N/A
773-253 Chicago Zone 10 N/A
773-254 Chicago Zone 06 N/A
773-255 Chicago Zone 03 N/A
773-256 Chicago Zone 07 N/A
773-257 Chicago Zone 06 N/A
773-258 Chicago Zone 01 N/A
773-259 Chicago Zone 01 N/A
773-260 Chicago Zone 10 N/A
773-261 Chicago Zone 05 N/A
773-262 Chicago Zone 02 N/A
773-263 Chicago Zone 03 N/A
773-264 Chicago Zone 10 N/A
773-265 Chicago Zone 06 N/A
773-266 Chicago Zone 01 N/A
773-267 Chicago Zone 02 N/A
773-268 Chicago Zone 07 N/A
773-269 Chicago Zone 04 N/A
773-270 Chicago Zone 04 6/4/2009
773-271 Chicago Zone 02 N/A
773-272 Chicago Zone 03 N/A
773-273 Chicago Zone 02 N/A
773-274 Chicago Zone 02 N/A
773-275 Chicago Zone 02 N/A
773-276 Chicago Zone 04 N/A
773-277 Chicago Zone 06 N/A
773-278 Chicago Zone 04 N/A
773-279 Chicago Zone 02 N/A
773-280 Chicago Zone 06 N/A
773-281 Chicago Zone 04 N/A
773-282 Chicago Zone 03 N/A
773-283 Chicago Zone 03 N/A
773-284 Chicago Zone 08 N/A
773-285 Chicago Zone 07 N/A
773-286 Chicago Zone 03 N/A
773-287 Chicago Zone 05 N/A
773-288 Chicago Zone 07 N/A
773-289 Chicago Zone 04 N/A
773-290 Chicago Zone 02 N/A
773-291 Chicago Zone 10 N/A
773-292 Chicago Zone 04 N/A
773-293 Chicago Zone 02 N/A
773-294 Chicago Zone 03 N/A
773-295 Chicago Zone 05 N/A
773-296 Chicago Zone 04 N/A
773-297 Chicago Zone 03 N/A
773-298 Chicago Zone 10 N/A
773-299 Chicago Zone 06 N/A

NPANXX Area served1 Date2
773-300 Chicago Zone 05 06/15/2023
773-301 Chicago Zone 03 N/A
773-302 Chicago Zone 02 2/26/2009
773-303 Chicago Zone 02 N/A
773-304 Chicago Zone 03 N/A
773-305 Chicago Zone 04 N/A
773-306 Chicago Zone 08 N/A
773-307 Chicago Zone 01 N/A
773-308 Chicago Zone 03 N/A
773-309 Chicago Zone 05 N/A
773-310 Chicago Zone 10 3/22/2004
773-312 Chicago Zone 02 N/A
773-313 Chicago Zone 02 N/A
773-314 Chicago Zone 03 N/A
773-315 Chicago Zone 01 N/A
773-316 Chicago Zone 01 N/A
773-317 Chicago Zone 01 N/A
773-318 Chicago Zone 03 9/7/2004
773-319 Chicago Zone 10 N/A
773-320 Chicago Zone 01 N/A
773-321 Chicago Zone 06 N/A
773-322 Chicago Zone 07 N/A
773-323 Chicago Zone 02 4/16/2001
773-324 Chicago Zone 07 N/A
773-325 Chicago Zone 04 N/A
773-326 Chicago Zone 07 N/A
773-327 Chicago Zone 04 N/A
773-328 Chicago Zone 04 N/A
773-329 Chicago Zone 03 N/A
773-330 Chicago Zone 01 N/A
773-331 Chicago Zone 03 N/A
773-332 Chicago Zone 03 N/A
773-333 Chicago Zone 02 4/16/2001
773-334 Chicago Zone 02 N/A
773-335 Chicago Zone 01 N/A
773-336 Chicago Zone 09 N/A
773-337 Chicago Zone 11 N/A
773-338 Chicago Zone 02 N/A
773-339 Chicago Zone 01 N/A
773-340 Chicago Zone 08 N/A
773-341 Chicago Zone 10 N/A
773-342 Chicago Zone 04 N/A
773-343 Chicago Zone 01 N/A
773-344 Chicago Zone 10 N/A
773-345 Chicago Zone 05 N/A
773-346 Chicago Zone 06 N/A
773-347 Chicago Zone 07 N/A
773-348 Chicago Zone 04 N/A
773-349 Chicago Zone 08 N/A
773-350 Chicago Zone 01 N/A
773-351 Chicago Zone 01 N/A
773-352 Chicago Zone 03 7/1/2021
773-353 Chicago Zone 03 N/A
773-354 Chicago Zone 01 N/A
773-355 Chicago Zone 03 4/12/2001
773-356 Chicago Zone 09 N/A
773-357 Chicago Zone 11 N/A
773-358 Chicago Zone 07 N/A
773-359 Chicago Zone 09 N/A
773-360 Chicago Zone 04 N/A
773-361 Chicago Zone 07 N/A
773-362 Chicago Zone 08 N/A
773-363 Chicago Zone 07 N/A
773-364 Chicago Zone 09 4/12/2001
773-365 Chicago Zone 04 N/A
773-366 Chicago Zone 10 9/24/2004
773-367 Chicago Zone 03 2/13/2009
773-368 Chicago Zone 03 N/A
773-369 Chicago Zone 01 N/A
773-370 Chicago Zone 01 N/A
773-371 Chicago Zone 07 N/A
773-372 Chicago Zone 03 7/7/2008
773-373 Chicago Zone 07 N/A
773-374 Chicago Zone 09 N/A
773-375 Chicago Zone 09 N/A
773-376 Chicago Zone 06 N/A
773-377 Chicago Zone 11 N/A
773-378 Chicago Zone 05 N/A
773-379 Chicago Zone 05 N/A
773-380 Chicago Zone 03 N/A
773-381 Chicago Zone 02 N/A
773-382 Chicago Zone 09 4/12/2001
773-383 Chicago Zone 03 N/A
773-384 Chicago Zone 04 N/A
773-385 Chicago Zone 05 N/A
773-386 Chicago Zone 01 N/A
773-387 Chicago Zone 10 6/9/2004
773-388 Chicago Zone 04 N/A
773-389 Chicago Zone 09 N/A
773-390 Chicago Zone 01 N/A
773-391 Chicago Zone 01 N/A
773-392 Chicago Zone 01 N/A
773-393 Chicago Zone 01 N/A
773-394 Chicago Zone 04 N/A
773-395 Chicago Zone 04 N/A
773-396 Chicago Zone 10 4/12/2001
773-397 Chicago Zone 03 3/10/2009
773-398 Chicago Zone 03 N/A
773-399 Chicago Zone 03 N/A

NPANXX Area served1 Date2
773-400 Chicago Zone 02 4/16/2001
773-401 Chicago Zone 01 N/A
773-402 Chicago Zone 01 N/A
773-403 Chicago Zone 03 N/A
773-404 Chicago Zone 04 N/A
773-405 Chicago Zone 01 N/A
773-406 Chicago Zone 07 N/A
773-407 Chicago Zone 03 N/A
773-408 Chicago Zone 06 2/13/2009
773-409 Chicago Zone 02 N/A
773-410 Chicago Zone 02 N/A
773-412 Chicago Zone 03 N/A
773-413 Chicago Zone 05 N/A
773-414 Chicago Zone 03 9/7/2004
773-415 Chicago Zone 01 N/A
773-416 Chicago Zone 01 N/A
773-417 Chicago Zone 05 N/A
773-418 Chicago Zone 03 N/A
773-419 Chicago Zone 01 N/A
773-420 Chicago Zone 07 N/A
773-421 Chicago Zone 01 N/A
773-422 Chicago Zone 01 N/A
773-423 Chicago Zone 02 N/A
773-424 Chicago Zone 08 N/A
773-425 Chicago Zone 03 N/A
773-426 Chicago Zone 03 1/4/2002
773-427 Chicago Zone 03 N/A
773-428 Chicago Zone 01 N/A
773-429 Chicago Zone 10 N/A
773-430 Chicago Zone 03 N/A
773-431 Chicago Zone 03 11/5/2008
773-432 Chicago Zone 08 N/A
773-433 Chicago Zone 02 N/A
773-434 Chicago Zone 08 N/A
773-435 Chicago Zone 04 N/A
773-436 Chicago Zone 08 N/A
773-437 Chicago Zone 09 N/A
773-438 Chicago Zone 01 N/A
773-439 Chicago Zone 03 N/A
773-440 Chicago Zone 10 N/A
773-441 Chicago Zone 03 8/21/2008
773-442 Chicago Zone 02 N/A
773-443 Chicago Zone 01 N/A
773-444 Chicago Zone 03 N/A
773-445 Chicago Zone 10 N/A
773-446 Chicago Zone 06 N/A
773-447 Chicago Zone 01 N/A
773-448 Chicago Zone 01 N/A
773-449 Chicago Zone 09 N/A
773-450 Chicago Zone 01 N/A
773-451 Chicago Zone 07 N/A
773-452 Chicago Zone 01 N/A
773-453 Chicago Zone 11 N/A
773-454 Chicago Zone 03 N/A
773-455 Chicago Zone 11 N/A
773-456 Chicago Zone 03 N/A
773-457 Chicago Zone 07 N/A
773-458 Chicago Zone 03 N/A
773-459 Chicago Zone 01 N/A
773-460 Chicago Zone 01 N/A
773-461 Chicago Zone 01 N/A
773-462 Chicago Zone 11 N/A
773-463 Chicago Zone 02 N/A
773-464 Chicago Zone 01 N/A
773-465 Chicago Zone 02 N/A
773-466 Chicago Zone 05 N/A
773-467 Chicago Zone 03 N/A
773-468 Chicago Zone 10 N/A
773-469 Chicago Zone 01 N/A
773-470 Chicago Zone 08 N/A
773-471 Chicago Zone 08 N/A
773-472 Chicago Zone 04 N/A
773-473 Chicago Zone 05 N/A
773-474 Chicago Zone 10 4/12/2001
773-475 Chicago Zone 06 N/A
773-476 Chicago Zone 08 N/A
773-477 Chicago Zone 04 N/A
773-478 Chicago Zone 02 N/A
773-479 Chicago Zone 05 N/A
773-480 Chicago Zone 01 N/A
773-481 Chicago Zone 03 N/A
773-482 Chicago Zone 11 4/12/2001
773-483 Chicago Zone 07 N/A
773-484 Chicago Zone 07 N/A
773-485 Chicago Zone 01 N/A
773-486 Chicago Zone 04 N/A
773-487 Chicago Zone 07 N/A
773-488 Chicago Zone 07 N/A
773-489 Chicago Zone 04 N/A
773-490 Chicago Zone 03 N/A
773-491 Chicago Zone 03 N/A
773-492 Chicago Zone 08 8/23/2011
773-493 Chicago Zone 07 N/A
773-494 Chicago Zone 03 10/13/2004
773-495 Chicago Zone 01 N/A
773-496 Chicago Zone 07 4/12/2001
773-497 Chicago Zone 01 N/A
773-498 Chicago Zone 08 N/A
773-499 Chicago Zone 03 9/28/2004

NPANXX Area served1 Date2
773-500 Chicago Zone 10 06/15/2023
773-501 Chicago Zone 03 2/12/2001
773-502 Chicago Zone 01 N/A
773-503 Chicago Zone 10 11/17/2004
773-504 Chicago Zone 01 N/A
773-505 Chicago Zone 01 N/A
773-506 Chicago Zone 02 N/A
773-507 Chicago Zone 03 2/14/2001
773-508 Chicago Zone 02 N/A
773-509 Chicago Zone 02 N/A
773-510 Chicago Zone 03 4/4/2002
773-512 Chicago Zone 03 10/13/2004
773-513 Chicago Zone 01 N/A
773-514 Chicago Zone 02 4/16/2001
773-515 Chicago Zone 01 N/A
773-516 Chicago Zone 02 N/A
773-517 Chicago Zone 01 N/A
773-518 Chicago Zone 01 N/A
773-519 Chicago Zone 01 N/A
773-520 Chicago Zone 01 N/A
773-521 Chicago Zone 06 N/A
773-522 Chicago Zone 06 N/A
773-523 Chicago Zone 06 N/A
773-524 Chicago Zone 04 N/A
773-525 Chicago Zone 04 N/A
773-526 Chicago Zone 08 4/12/2001
773-527 Chicago Zone 03 N/A
773-528 Chicago Zone 04 N/A
773-529 Chicago Zone 04 N/A
773-530 Chicago Zone 09 12/30/2004
773-531 Chicago Zone 03 N/A
773-532 Chicago Zone 01 N/A
773-533 Chicago Zone 06 N/A
773-534 Chicago Zone 06 N/A
773-535 Chicago Zone 06 N/A
773-536 Chicago Zone 07 N/A
773-537 Chicago Zone 04 5/24/2004
773-538 Chicago Zone 07 N/A
773-539 Chicago Zone 02 N/A
773-540 Chicago Zone 03 12/28/2004
773-541 Chicago Zone 02 N/A
773-542 Chicago Zone 06 N/A
773-543 Chicago Zone 04 10/26/2007
773-544 Chicago Zone 01 N/A
773-545 Chicago Zone 03 N/A
773-546 Chicago Zone 10 N/A
773-547 Chicago Zone 01 N/A
773-548 Chicago Zone 07 N/A
773-549 Chicago Zone 04 N/A
773-550 Chicago Zone 01 N/A
773-551 Chicago Zone 03 N/A
773-552 Chicago Zone 01 N/A
773-553 Chicago Zone 06 N/A
773-554 Chicago Zone 03 7/1/2009
773-556 Chicago Zone 03 N/A
773-557 Chicago Zone 03 N/A
773-558 Chicago Zone 03 1/15/2007
773-559 Chicago Zone 03 1/10/2005
773-560 Chicago Zone 01 N/A
773-561 Chicago Zone 02 N/A
773-562 Chicago Zone 03 N/A
773-563 Chicago Zone 10 10/19/2005
773-564 Chicago Zone 02 N/A
773-565 Chicago Zone 06 5/21/2004
773-566 Chicago Zone 01 N/A
773-567 Chicago Zone 03 4/22/2005
773-568 Chicago Zone 10 N/A
773-569 Chicago Zone 03 N/A
773-570 Chicago Zone 11 N/A
773-571 Chicago Zone 07 2/20/2007
773-572 Chicago Zone 04 N/A
773-573 Chicago Zone 07 N/A
773-574 Chicago Zone 10 3/21/2006
773-575 Chicago Zone 03 N/A
773-576 Chicago Zone 01 N/A
773-577 Chicago Zone 03 4/12/2001
773-578 Chicago Zone 01 N/A
773-579 Chicago Zone 06 N/A
773-580 Chicago Zone 03 N/A
773-581 Chicago Zone 08 N/A
773-582 Chicago Zone 08 N/A
773-583 Chicago Zone 02 N/A
773-584 Chicago Zone 06 N/A
773-585 Chicago Zone 08 N/A
773-586 Chicago Zone 08 N/A
773-587 Chicago Zone 03 1/8/2007
773-588 Chicago Zone 02 N/A
773-589 Chicago Zone 05 N/A
773-590 Chicago Zone 01 N/A
773-591 Chicago Zone 01 N/A
773-592 Chicago Zone 03 N/A
773-593 Chicago Zone 01 N/A
773-594 Chicago Zone 03 N/A
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 N/A
773-599 Chicago Zone 08 N/A

NPANXX Area served1 Date2
773-600 Chicago Zone 10 7/20/2004
773-601 Chicago Zone 11 N/A
773-602 Chicago Zone 07 N/A
773-603 Chicago Zone 10 6/30/2005
773-604 Chicago Zone 02 N/A
773-605 Chicago Zone 02 4/5/2006
773-606 Chicago Zone 03 7/14/2005
773-607 Chicago Zone 01 N/A
773-608 Chicago Zone 01 N/A
773-609 Chicago Zone 10 N/A
773-610 Chicago Zone 03 10/17/2001
773-612 Chicago Zone 01 N/A
773-613 Chicago Zone 01 N/A
773-614 Chicago Zone 10 11/8/2006
773-615 Chicago Zone 10 11/30/2001
773-616 Chicago Zone 01 N/A
773-617 Chicago Zone 01 N/A
773-618 Chicago Zone 01 N/A
773-619 Chicago Zone 03 3/9/2001
773-620 Chicago Zone 03 N/A
773-621 Chicago Zone 03 10/10/2005
773-622 Chicago Zone 05 N/A
773-623 Chicago Zone 01 N/A
773-624 Chicago Zone 07 N/A
773-625 Chicago Zone 05 N/A
773-626 Chicago Zone 05 N/A
773-627 Chicago Zone 08 4/12/2001
773-628 Chicago Zone 03 N/A
773-629 Chicago Zone 10 11/8/2006
773-630 Chicago Zone 03 3/10/2009
773-631 Chicago Zone 03 N/A
773-632 Chicago Zone 03 N/A
773-633 Chicago Zone 07 N/A
773-634 Chicago Zone 04 N/A
773-635 Chicago Zone 06 N/A
773-636 Chicago Zone 01 N/A
773-637 Chicago Zone 05 N/A
773-638 Chicago Zone 06 N/A
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 N/A
773-644 Chicago Zone 02 1/5/2011
773-645 Chicago Zone 04 N/A
773-646 Chicago Zone 09 N/A
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 N/A
773-651 Chicago Zone 07 N/A
773-652 Chicago Zone 01 N/A
773-653 Chicago Zone 03 N/A
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 N/A
773-659 Chicago Zone 01 N/A
773-660 Chicago Zone 10 N/A
773-661 Chicago Zone 04 4/12/2001
773-662 Chicago Zone 01 N/A
773-663 Chicago Zone 03 N/A
773-664 Chicago Zone 05 4/12/2001
773-665 Chicago Zone 04 N/A
773-666 Chicago Zone 04 5/20/2011
773-667 Chicago Zone 07 N/A
773-668 Chicago Zone 05 4/27/2006
773-669 Chicago Zone 05 6/8/2009
773-670 Chicago Zone 03 N/A
773-671 Chicago Zone 01 N/A
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 N/A
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 N/A
773-682 Chicago Zone 03 10/17/2005
773-683 Chicago Zone 03 1/23/2008
773-684 Chicago Zone 07 N/A
773-685 Chicago Zone 03 N/A
773-686 Chicago Zone 11 N/A
773-687 Chicago Zone 04 N/A
773-688 Chicago Zone 05 7/27/2004
773-689 Chicago Zone 01 N/A
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 N/A
773-694 Chicago Zone 11 N/A
773-695 Chicago Zone 03 N/A
773-696 Chicago Zone 06 N/A
773-697 Chicago Zone 04 4/12/2001
773-698 Chicago Zone 04 6/13/2007
773-699 Chicago Zone 03 4/19/2005
NPANXX Area served1 Date2
773-701 Chicago Zone 10 9/30/2005
773-702 Chicago Zone 07 N/A
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 N/A
773-714 Chicago Zone 03 N/A
773-715 Chicago Zone 06 10/16/2002
773-716 Chicago Zone 01 N/A
773-717 Chicago Zone 07 9/16/2008
773-718 Chicago Zone 01 N/A
773-719 Chicago Zone 01 N/A
773-720 Chicago Zone 01 N/A
773-721 Chicago Zone 09 N/A
773-722 Chicago Zone 06 N/A
773-723 Chicago Zone 07 N/A
773-724 Chicago Zone 03 10/17/2005
773-725 Chicago Zone 03 N/A
773-726 Chicago Zone 07 4/12/2001
773-727 Chicago Zone 10 10/16/2002
773-728 Chicago Zone 02 N/A
773-729 Chicago Zone 07 4/12/2001
773-730 Chicago Zone 02 N/A
773-731 Chicago Zone 09 N/A
773-732 Chicago Zone 03 N/A
773-733 Chicago Zone 06 4/12/2001
773-734 Chicago Zone 09 N/A
773-735 Chicago Zone 08 N/A
773-736 Chicago Zone 03 N/A
773-737 Chicago Zone 08 N/A
773-738 Chicago Zone 03 8/29/2007
773-739 Chicago Zone 02 N/A
773-740 Chicago Zone 02 4/16/2001
773-741 Chicago Zone 11 N/A
773-742 Chicago Zone 03 11/5/2001
773-743 Chicago Zone 02 N/A
773-744 Chicago Zone 06 8/30/2001
773-745 Chicago Zone 05 N/A
773-746 Chicago Zone 03 N/A
773-747 Chicago Zone 04 1/7/2008
773-748 Chicago Zone 10 N/A
773-749 Chicago Zone 03 6/19/2007
773-750 Chicago Zone 03 9/13/2001
773-751 Chicago Zone 02 N/A
773-752 Chicago Zone 07 N/A
773-753 Chicago Zone 07 N/A
773-754 Chicago Zone 02 10/24/2006
773-755 Chicago Zone 04 N/A
773-756 Chicago Zone 03 N/A
773-757 Chicago Zone 08 6/28/2001
773-758 Chicago Zone 01 N/A
773-759 Chicago Zone 03 5/21/2002
773-760 Chicago Zone 01 N/A
773-761 Chicago Zone 02 N/A
773-762 Chicago Zone 06 N/A
773-763 Chicago Zone 03 N/A
773-764 Chicago Zone 02 N/A
773-765 Chicago Zone 02 N/A
773-766 Chicago Zone 03 9/15/2008
773-767 Chicago Zone 08 N/A
773-768 Chicago Zone 09 N/A
773-769 Chicago Zone 02 N/A
773-770 Chicago Zone 04 N/A
773-771 Chicago Zone 01 N/A
773-772 Chicago Zone 04 N/A
773-773 Chicago Zone 09 05/18/2023
773-774 Chicago Zone 03 N/A
773-775 Chicago Zone 03 N/A
773-776 Chicago Zone 08 N/A
773-777 Chicago Zone 03 N/A
773-778 Chicago Zone 08 N/A
773-779 Chicago Zone 10 N/A
773-780 Chicago Zone 08 N/A
773-781 Chicago Zone 01 4/23/2001
773-782 Chicago Zone 04 N/A
773-783 Chicago Zone 07 N/A
773-784 Chicago Zone 02 N/A
773-785 Chicago Zone 10 N/A
773-786 Chicago Zone 05 N/A
773-787 Chicago Zone 10 N/A
773-788 Chicago Zone 08 N/A
773-789 Chicago Zone 08 7/12/2007
773-790 Chicago Zone 03 N/A
773-791 Chicago Zone 03 5/25/2001
773-792 Chicago Zone 03 N/A
773-793 Chicago Zone 03 N/A
773-794 Chicago Zone 03 N/A
773-795 Chicago Zone 07 N/A
773-796 Chicago Zone 02 11/1/2010
773-797 Chicago Zone 05 N/A
773-798 Chicago Zone 07 8/21/2008
773-799 Chicago Zone 04 N/A
NPANXX Area served1 Date2
773-800 Chicago Zone 02 6/25/2009
773-801 Chicago Zone 06 5/19/2006
773-802 Chicago Zone 01 N/A
773-803 Chicago Zone 03 3/15/2007
773-804 Chicago Zone 05 N/A
773-805 Chicago Zone 01 N/A
773-806 Chicago Zone 01 N/A
773-807 Chicago Zone 02 8/15/2002
773-808 Chicago Zone 07 N/A
773-809 Chicago Zone 03 9/8/2008
773-810 Chicago Zone 01 N/A
773-812 Chicago Zone 03 3/23/2009
773-813 Chicago Zone 01 N/A
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 N/A
773-819 Chicago Zone 07 N/A
773-820 Chicago Zone 01 N/A
773-821 Chicago Zone 10 N/A
773-822 Chicago Zone 06 N/A
773-823 Chicago Zone 06 N/A
773-824 Chicago Zone 03 N/A
773-825 Chicago Zone 11 N/A
773-826 Chicago Zone 06 N/A
773-827 Chicago Zone 06 N/A
773-828 Chicago Zone 02 N/A
773-829 Chicago Zone 04 N/A
773-830 Chicago Zone 05 N/A
773-831 Chicago Zone 11 N/A
773-832 Chicago Zone 04 N/A
773-833 Chicago Zone 01 N/A
773-834 Chicago Zone 07 N/A
773-835 Chicago Zone 01 N/A
773-836 Chicago Zone 05 N/A
773-837 Chicago Zone 04 8/8/2001
773-838 Chicago Zone 08 N/A
773-839 Chicago Zone 04 11/23/2015
773-840 Chicago Zone 10 6/23/2006
773-841 Chicago Zone 01 N/A
773-842 Chicago Zone 01 N/A
773-843 Chicago Zone 06 N/A
773-844 Chicago Zone 03 5/25/2001
773-845 Chicago Zone 01 4/23/2001
773-846 Chicago Zone 07 N/A
773-847 Chicago Zone 06 N/A
773-848 Chicago Zone 01 N/A
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 N/A
773-853 Chicago Zone 03 10/3/2006
773-854 Chicago Zone 05 N/A
773-855 Chicago Zone 07 N/A
773-856 Chicago Zone 02 N/A
773-857 Chicago Zone 04 N/A
773-858 Chicago Zone 02 7/6/2001
773-859 Chicago Zone 01 N/A
773-860 Chicago Zone 01 N/A
773-861 Chicago Zone 04 2/23/2007
773-862 Chicago Zone 04 N/A
773-863 Chicago Zone 08 N/A
773-864 Chicago Zone 03 N/A
773-865 Chicago Zone 02 8/30/2001
773-866 Chicago Zone 02 N/A
773-867 Chicago Zone 03 N/A
773-868 Chicago Zone 04 N/A
773-869 Chicago Zone 06 N/A
773-870 Chicago Zone 03 8/6/2002
773-871 Chicago Zone 04 N/A
773-872 Chicago Zone 04 06/08/2023
773-873 Chicago Zone 07 N/A
773-874 Chicago Zone 07 N/A
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 N/A
773-879 Chicago Zone 01 N/A
773-880 Chicago Zone 04 N/A
773-881 Chicago Zone 10 N/A
773-882 Chicago Zone 01 N/A
773-883 Chicago Zone 04 N/A
773-884 Chicago Zone 08 N/A
773-885 Chicago Zone 03 3/8/2005
773-886 Chicago Zone 07 10/31/2007
773-887 Chicago Zone 05 N/A
773-888 Chicago Zone 04 6/25/2009
773-889 Chicago Zone 05 N/A
773-890 Chicago Zone 06 N/A
773-891 Chicago Zone 07 10/18/2006
773-892 Chicago Zone 07 N/A
773-893 Chicago Zone 06 N/A
773-894 Chicago Zone 11 N/A
773-895 Chicago Zone 01 8/30/2001
773-896 Chicago Zone 07 N/A
773-897 Chicago Zone 02 3/28/2008
773-898 Chicago Zone 01 N/A
773-899 Chicago Zone 03 3/15/2006

NPANXX Area served1 Date2
773-900 Chicago Zone 03 8/19/2019
773-901 Chicago Zone 10 5/15/2009
773-902 Chicago Zone 09 N/A
773-903 Chicago Zone 02 4/16/2001
773-904 Chicago Zone 04 5/12/2008
773-905 Chicago Zone 10 N/A
773-906 Chicago Zone 11 N/A
773-907 Chicago Zone 02 N/A
773-908 Chicago Zone 01 N/A
773-909 Chicago Zone 01 N/A
773-910 Chicago Zone 01 N/A
773-912 Chicago Zone 08 N/A
773-913 Chicago Zone 09 N/A
773-914 Chicago Zone 01 N/A
773-915 Chicago Zone 07 N/A
773-916 Chicago Zone 06 8/31/2010
773-917 Chicago Zone 11 N/A
773-918 Chicago Zone 08 N/A
773-919 Chicago Zone 01 N/A
773-920 Chicago Zone 06 N/A
773-921 Chicago Zone 05 N/A
773-922 Chicago Zone 05 N/A
773-923 Chicago Zone 03 5/1/2020
773-924 Chicago Zone 07 N/A
773-925 Chicago Zone 08 N/A
773-926 Chicago Zone 07 N/A
773-927 Chicago Zone 06 N/A
773-928 Chicago Zone 10 N/A
773-929 Chicago Zone 04 N/A
773-930 Chicago Zone 03 1/8/2007
773-931 Chicago Zone 10 5/23/2001
773-932 Chicago Zone 03 N/A
773-933 Chicago Zone 09 N/A
773-934 Chicago Zone 03 8/21/2002
773-935 Chicago Zone 04 N/A
773-936 Chicago Zone 07 8/30/2001
773-937 Chicago Zone 08 N/A
773-938 Chicago Zone 04 N/A
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 N/A
773-943 Chicago Zone 02 9/3/2010
773-944 Chicago Zone 02 N/A
773-945 Chicago Zone 05 6/25/2008
773-946 Chicago Zone 10 5/22/2007
773-947 Chicago Zone 07 N/A
773-948 Chicago Zone 08 N/A
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 N/A
773-956 Chicago Zone 06 9/4/2008
773-957 Chicago Zone 03 N/A
773-960 Chicago Zone 03 N/A
773-961 Chicago Zone 02 N/A
773-962 Chicago Zone 07 N/A
773-963 Chicago Zone 03 7/17/2007
773-964 Chicago Zone 10 8/21/2007
773-965 Chicago Zone 01 N/A
773-966 Chicago Zone 07 4/27/2006
773-967 Chicago Zone 09 N/A
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 N/A
773-973 Chicago Zone 02 N/A
773-974 Chicago Zone 11 N/A
773-975 Chicago Zone 04 N/A
773-977 Chicago Zone 02 N/A
773-978 Chicago Zone 09 N/A
773-979 Chicago Zone 10 6/8/2006
773-980 Chicago Zone 10 5/15/2008
773-981 Chicago Zone 10 N/A
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 N/A
773-986 Chicago Zone 08 10/16/2007
773-987 Chicago Zone 10 3/28/2005
773-988 Chicago Zone 01 N/A
773-989 Chicago Zone 02 N/A
773-990 Chicago Zone 03 3/20/2006
773-991 Chicago Zone 03 N/A
773-992 Chicago Zone 03 N/A
773-993 Chicago Zone 03 2/18/2011
773-994 Chicago Zone 07 N/A
773-995 Chicago Zone 10 N/A
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. 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.
  2. Assignment date. N/A - mostly CO codes assigned before 2001.
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Cities in area code 773

City1 County Time2
Chicago Cook C
  1. Listed above are most places served by area code 773. When multiple places in a state/province share the same name we list the largest one only. Cities with population over 50,000 are displayed in bold text.
  2. C stands for Central Time Zone (currently 01:59:25 PM).
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