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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 12 October 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.

07:05:36 AM 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
773-201Chicago Zone 01
773-202Chicago Zone 03
773-203Chicago Zone 01
773-204Chicago Zone 01
773-205Chicago Zone 03
773-206Chicago Zone 01
773-207Chicago Zone 108/7/2019
773-208Chicago Zone 01
773-209Chicago Zone 03
773-210Chicago Zone 01
773-212Chicago Zone 03
773-213Chicago Zone 01
773-214Chicago Zone 01
773-215Chicago Zone 01
773-216Chicago Zone 01
773-217Chicago Zone 095/19/2009
773-218Chicago Zone 01
773-219Chicago Zone 07
773-220Chicago Zone 03
773-221Chicago Zone 09
773-222Chicago Zone 01
773-223Chicago Zone 06
773-224Chicago Zone 07
773-225Chicago Zone 033/15/2006
773-226Chicago Zone 1011/27/2007
773-227Chicago Zone 04
773-228Chicago Zone 01
773-229Chicago Zone 08
773-230Chicago Zone 03
773-231Chicago Zone 079/8/2011
773-232Chicago Zone 102/5/2020
773-233Chicago Zone 10
773-234Chicago Zone 066/26/2009
773-235Chicago Zone 04
773-236Chicago Zone 076/26/2009
773-237Chicago Zone 05
773-238Chicago Zone 10
773-239Chicago Zone 10
773-240Chicago Zone 1010/16/2007
773-241Chicago Zone 07
773-242Chicago Zone 06
773-243Chicago Zone 03
773-244Chicago Zone 04
773-245Chicago Zone 086/16/2010
773-246Chicago Zone 04
773-247Chicago Zone 06
773-248Chicago Zone 04
773-249Chicago Zone 11
773-250Chicago Zone 02
773-251Chicago Zone 03
773-252Chicago Zone 04
773-253Chicago Zone 10
773-254Chicago Zone 06
773-255Chicago Zone 03
773-256Chicago Zone 07
773-257Chicago Zone 06
773-258Chicago Zone 01
773-259Chicago Zone 01
773-260Chicago Zone 10
773-261Chicago Zone 05
773-262Chicago Zone 02
773-263Chicago Zone 03
773-264Chicago Zone 10
773-265Chicago Zone 06
773-266Chicago Zone 01
773-267Chicago Zone 02
773-268Chicago Zone 07
773-269Chicago Zone 04
773-270Chicago Zone 046/4/2009
773-271Chicago Zone 02
773-272Chicago Zone 03
773-273Chicago Zone 02
773-274Chicago Zone 02
773-275Chicago Zone 02
773-276Chicago Zone 04
773-277Chicago Zone 06
773-278Chicago Zone 04
773-279Chicago Zone 02
773-280Chicago Zone 06
773-281Chicago Zone 04
773-282Chicago Zone 03
773-283Chicago Zone 03
773-284Chicago Zone 08
773-285Chicago Zone 07
773-286Chicago Zone 03
773-287Chicago Zone 05
773-288Chicago Zone 07
773-289Chicago Zone 04
773-290Chicago Zone 02
773-291Chicago Zone 10
773-292Chicago Zone 04
773-293Chicago Zone 02
773-294Chicago Zone 03
773-295Chicago Zone 05
773-296Chicago Zone 04
773-297Chicago Zone 03
773-298Chicago Zone 10
773-299Chicago Zone 06
773-301Chicago Zone 03
773-302Chicago Zone 022/26/2009
773-303Chicago Zone 02
773-304Chicago Zone 03
773-305Chicago Zone 04
773-306Chicago Zone 08
773-307Chicago Zone 01
773-308Chicago Zone 03
773-309Chicago Zone 05
773-310Chicago Zone 103/22/2004
773-312Chicago Zone 02
773-313Chicago Zone 02
773-314Chicago Zone 03
773-315Chicago Zone 01
773-316Chicago Zone 01
773-317Chicago Zone 01
773-318Chicago Zone 039/7/2004
773-319Chicago Zone 10
773-320Chicago Zone 01
773-321Chicago Zone 06
773-322Chicago Zone 07
773-323Chicago Zone 024/16/2001
773-324Chicago Zone 07
773-325Chicago Zone 04
773-326Chicago Zone 07
773-327Chicago Zone 04
773-328Chicago Zone 04
773-329Chicago Zone 03
773-330Chicago Zone 01
773-331Chicago Zone 03
773-332Chicago Zone 03
773-333Chicago Zone 024/16/2001
773-334Chicago Zone 02
773-335Chicago Zone 01
773-336Chicago Zone 09
773-337Chicago Zone 11
773-338Chicago Zone 02
773-339Chicago Zone 01
773-340Chicago Zone 08
773-341Chicago Zone 10
773-342Chicago Zone 04
773-343Chicago Zone 01
773-344Chicago Zone 10
773-345Chicago Zone 05
773-346Chicago Zone 06
773-347Chicago Zone 07
773-348Chicago Zone 04
773-349Chicago Zone 08
773-350Chicago Zone 01
773-351Chicago Zone 01
773-352Chicago Zone 037/1/2021
773-353Chicago Zone 03
773-354Chicago Zone 01
773-355Chicago Zone 034/12/2001
773-356Chicago Zone 09
773-357Chicago Zone 11
773-358Chicago Zone 07
773-359Chicago Zone 09
773-360Chicago Zone 04
773-361Chicago Zone 07
773-362Chicago Zone 08
773-363Chicago Zone 07
773-364Chicago Zone 094/12/2001
773-365Chicago Zone 04
773-366Chicago Zone 109/24/2004
773-367Chicago Zone 032/13/2009
773-368Chicago Zone 03
773-369Chicago Zone 01
773-370Chicago Zone 01
773-371Chicago Zone 07
773-372Chicago Zone 037/7/2008
773-373Chicago Zone 07
773-374Chicago Zone 09
773-375Chicago Zone 09
773-376Chicago Zone 06
773-377Chicago Zone 11
773-378Chicago Zone 05
773-379Chicago Zone 05
773-380Chicago Zone 03
773-381Chicago Zone 02
773-382Chicago Zone 094/12/2001
773-383Chicago Zone 03
773-384Chicago Zone 04
773-385Chicago Zone 05
773-386Chicago Zone 01
773-387Chicago Zone 106/9/2004
773-388Chicago Zone 04
773-389Chicago Zone 09
773-390Chicago Zone 01
773-391Chicago Zone 01
773-392Chicago Zone 01
773-393Chicago Zone 01
773-394Chicago Zone 04
773-395Chicago Zone 04
773-396Chicago Zone 104/12/2001
773-397Chicago Zone 033/10/2009
773-398Chicago Zone 03
773-399Chicago Zone 03
773-400Chicago Zone 024/16/2001
773-401Chicago Zone 01
773-402Chicago Zone 01
773-403Chicago Zone 03
773-404Chicago Zone 04
773-405Chicago Zone 01
773-406Chicago Zone 07
773-407Chicago Zone 03
773-408Chicago Zone 062/13/2009
773-409Chicago Zone 02
773-410Chicago Zone 02
773-412Chicago Zone 03
773-413Chicago Zone 05
773-414Chicago Zone 039/7/2004
773-415Chicago Zone 01
773-416Chicago Zone 01
773-417Chicago Zone 05
773-418Chicago Zone 03
773-419Chicago Zone 01
773-420Chicago Zone 07
773-421Chicago Zone 01
773-422Chicago Zone 01
773-423Chicago Zone 02
773-424Chicago Zone 08
773-425Chicago Zone 03
773-426Chicago Zone 031/4/2002
773-427Chicago Zone 03
773-428Chicago Zone 01
773-429Chicago Zone 10
773-430Chicago Zone 03
773-431Chicago Zone 0311/5/2008
773-432Chicago Zone 08
773-433Chicago Zone 02
773-434Chicago Zone 08
773-435Chicago Zone 04
773-436Chicago Zone 08
773-437Chicago Zone 09
773-438Chicago Zone 01
773-439Chicago Zone 03
773-440Chicago Zone 10
773-441Chicago Zone 038/21/2008
773-442Chicago Zone 02
773-443Chicago Zone 01
773-444Chicago Zone 03
773-445Chicago Zone 10
773-446Chicago Zone 06
773-447Chicago Zone 01
773-448Chicago Zone 01
773-449Chicago Zone 09
773-450Chicago Zone 01
773-451Chicago Zone 07
773-452Chicago Zone 01
773-453Chicago Zone 11
773-454Chicago Zone 03
773-455Chicago Zone 11
773-456Chicago Zone 03
773-457Chicago Zone 07
773-458Chicago Zone 03
773-459Chicago Zone 01
773-460Chicago Zone 01
773-461Chicago Zone 01
773-462Chicago Zone 11
773-463Chicago Zone 02
773-464Chicago Zone 01
773-465Chicago Zone 02
773-466Chicago Zone 05
773-467Chicago Zone 03
773-468Chicago Zone 10
773-469Chicago Zone 01
773-470Chicago Zone 08
773-471Chicago Zone 08
773-472Chicago Zone 04
773-473Chicago Zone 05
773-474Chicago Zone 104/12/2001
773-475Chicago Zone 06
773-476Chicago Zone 08
773-477Chicago Zone 04
773-478Chicago Zone 02
773-479Chicago Zone 05
773-480Chicago Zone 01
773-481Chicago Zone 03
773-482Chicago Zone 114/12/2001
773-483Chicago Zone 07
773-484Chicago Zone 07
773-485Chicago Zone 01
773-486Chicago Zone 04
773-487Chicago Zone 07
773-488Chicago Zone 07
773-489Chicago Zone 04
773-490Chicago Zone 03
773-491Chicago Zone 03
773-492Chicago Zone 088/23/2011
773-493Chicago Zone 07
773-494Chicago Zone 0310/13/2004
773-495Chicago Zone 01
773-496Chicago Zone 074/12/2001
773-497Chicago Zone 01
773-498Chicago Zone 08
773-499Chicago Zone 039/28/2004
773-501Chicago Zone 032/12/2001
773-502Chicago Zone 01
773-503Chicago Zone 1011/17/2004
773-504Chicago Zone 01
773-505Chicago Zone 01
773-506Chicago Zone 02
773-507Chicago Zone 032/14/2001
773-508Chicago Zone 02
773-509Chicago Zone 02
773-510Chicago Zone 034/4/2002
773-512Chicago Zone 0310/13/2004
773-513Chicago Zone 01
773-514Chicago Zone 024/16/2001
773-515Chicago Zone 01
773-516Chicago Zone 02
773-517Chicago Zone 01
773-518Chicago Zone 01
773-519Chicago Zone 01
773-520Chicago Zone 01
773-521Chicago Zone 06
773-522Chicago Zone 06
773-523Chicago Zone 06
773-524Chicago Zone 04
773-525Chicago Zone 04
773-526Chicago Zone 084/12/2001
773-527Chicago Zone 03
773-528Chicago Zone 04
773-529Chicago Zone 04
773-530Chicago Zone 0912/30/2004
773-531Chicago Zone 03
773-532Chicago Zone 01
773-533Chicago Zone 06
773-534Chicago Zone 06
773-535Chicago Zone 06
773-536Chicago Zone 07
773-537Chicago Zone 045/24/2004
773-538Chicago Zone 07
773-539Chicago Zone 02
773-540Chicago Zone 0312/28/2004
773-541Chicago Zone 02
773-542Chicago Zone 06
773-543Chicago Zone 0410/26/2007
773-544Chicago Zone 01
773-545Chicago Zone 03
773-546Chicago Zone 10
773-547Chicago Zone 01
773-548Chicago Zone 07
773-549Chicago Zone 04
773-550Chicago Zone 01
773-551Chicago Zone 03
773-552Chicago Zone 01
773-553Chicago Zone 06
773-554Chicago Zone 037/1/2009
773-556Chicago Zone 03
773-557Chicago Zone 03
773-558Chicago Zone 031/15/2007
773-559Chicago Zone 031/10/2005
773-560Chicago Zone 01
773-561Chicago Zone 02
773-562Chicago Zone 03
773-563Chicago Zone 1010/19/2005
773-564Chicago Zone 02
773-565Chicago Zone 065/21/2004
773-566Chicago Zone 01
773-567Chicago Zone 034/22/2005
773-568Chicago Zone 10
773-569Chicago Zone 03
773-570Chicago Zone 11
773-571Chicago Zone 072/20/2007
773-572Chicago Zone 04
773-573Chicago Zone 07
773-574Chicago Zone 103/21/2006
773-575Chicago Zone 03
773-576Chicago Zone 01
773-577Chicago Zone 034/12/2001
773-578Chicago Zone 01
773-579Chicago Zone 06
773-580Chicago Zone 03
773-581Chicago Zone 08
773-582Chicago Zone 08
773-583Chicago Zone 02
773-584Chicago Zone 06
773-585Chicago Zone 08
773-586Chicago Zone 08
773-587Chicago Zone 031/8/2007
773-588Chicago Zone 02
773-589Chicago Zone 05
773-590Chicago Zone 01
773-591Chicago Zone 01
773-592Chicago Zone 03
773-593Chicago Zone 01
773-594Chicago Zone 03
773-595Chicago Zone 0710/30/2006
773-596Chicago Zone 024/12/2001
773-597Chicago Zone 071/21/2005
773-598Chicago Zone 04
773-599Chicago Zone 08
773-600Chicago Zone 107/20/2004
773-601Chicago Zone 11
773-602Chicago Zone 07
773-603Chicago Zone 106/30/2005
773-604Chicago Zone 02
773-605Chicago Zone 024/5/2006
773-606Chicago Zone 037/14/2005
773-607Chicago Zone 01
773-608Chicago Zone 01
773-609Chicago Zone 10
773-610Chicago Zone 0310/17/2001
773-612Chicago Zone 01
773-613Chicago Zone 01
773-614Chicago Zone 1011/8/2006
773-615Chicago Zone 1011/30/2001
773-616Chicago Zone 01
773-617Chicago Zone 01
773-618Chicago Zone 01
773-619Chicago Zone 033/9/2001
773-620Chicago Zone 03
773-621Chicago Zone 0310/10/2005
773-622Chicago Zone 05
773-623Chicago Zone 01
773-624Chicago Zone 07
773-625Chicago Zone 05
773-626Chicago Zone 05
773-627Chicago Zone 084/12/2001
773-628Chicago Zone 03
773-629Chicago Zone 1011/8/2006
773-630Chicago Zone 033/10/2009
773-631Chicago Zone 03
773-632Chicago Zone 03
773-633Chicago Zone 07
773-634Chicago Zone 04
773-635Chicago Zone 06
773-636Chicago Zone 01
773-637Chicago Zone 05
773-638Chicago Zone 06
773-639Chicago Zone 0310/17/2007
773-640Chicago Zone 064/12/2001
773-641Chicago Zone 039/13/2005
773-642Chicago Zone 033/15/2007
773-643Chicago Zone 07
773-644Chicago Zone 021/5/2011
773-645Chicago Zone 04
773-646Chicago Zone 09
773-647Chicago Zone 0310/17/2007
773-648Chicago Zone 064/12/2001
773-649Chicago Zone 024/12/2001
773-650Chicago Zone 06
773-651Chicago Zone 07
773-652Chicago Zone 01
773-653Chicago Zone 03
773-654Chicago Zone 024/12/2001
773-655Chicago Zone 033/27/2002
773-656Chicago Zone 106/30/2005
773-657Chicago Zone 033/5/2007
773-658Chicago Zone 05
773-659Chicago Zone 01
773-660Chicago Zone 10
773-661Chicago Zone 044/12/2001
773-662Chicago Zone 01
773-663Chicago Zone 03
773-664Chicago Zone 054/12/2001
773-665Chicago Zone 04
773-666Chicago Zone 045/20/2011
773-667Chicago Zone 07
773-668Chicago Zone 054/27/2006
773-669Chicago Zone 056/8/2009
773-670Chicago Zone 03
773-671Chicago Zone 01
773-672Chicago Zone 102/29/2008
773-673Chicago Zone 054/12/2001
773-674Chicago Zone 065/15/2008
773-675Chicago Zone 077/7/2008
773-676Chicago Zone 05
773-677Chicago Zone 033/7/2002
773-678Chicago Zone 032/21/2005
773-679Chicago Zone 107/26/2006
773-680Chicago Zone 032/2/2001
773-681Chicago Zone 02
773-682Chicago Zone 0310/17/2005
773-683Chicago Zone 031/23/2008
773-684Chicago Zone 07
773-685Chicago Zone 03
773-686Chicago Zone 11
773-687Chicago Zone 04
773-688Chicago Zone 057/27/2004
773-689Chicago Zone 01
773-690Chicago Zone 0711/5/2008
773-691Chicago Zone 087/10/2007
773-692Chicago Zone 041/31/2019
773-693Chicago Zone 03
773-694Chicago Zone 11
773-695Chicago Zone 03
773-696Chicago Zone 06
773-697Chicago Zone 044/12/2001
773-698Chicago Zone 046/13/2007
773-699Chicago Zone 034/19/2005
773-701Chicago Zone 109/30/2005
773-702Chicago Zone 07
773-703Chicago Zone 109/2/2008
773-704Chicago Zone 031/23/2002
773-705Chicago Zone 106/28/2006
773-706Chicago Zone 037/18/2005
773-707Chicago Zone 1011/5/2008
773-708Chicago Zone 1011/5/2008
773-709Chicago Zone 0311/5/2008
773-710Chicago Zone 034/16/2001
773-712Chicago Zone 0311/5/2008
773-713Chicago Zone 02
773-714Chicago Zone 03
773-715Chicago Zone 0610/16/2002
773-716Chicago Zone 01
773-717Chicago Zone 079/16/2008
773-718Chicago Zone 01
773-719Chicago Zone 01
773-720Chicago Zone 01
773-721Chicago Zone 09
773-722Chicago Zone 06
773-723Chicago Zone 07
773-724Chicago Zone 0310/17/2005
773-725Chicago Zone 03
773-726Chicago Zone 074/12/2001
773-727Chicago Zone 1010/16/2002
773-728Chicago Zone 02
773-729Chicago Zone 074/12/2001
773-730Chicago Zone 02
773-731Chicago Zone 09
773-732Chicago Zone 03
773-733Chicago Zone 064/12/2001
773-734Chicago Zone 09
773-735Chicago Zone 08
773-736Chicago Zone 03
773-737Chicago Zone 08
773-738Chicago Zone 038/29/2007
773-739Chicago Zone 02
773-740Chicago Zone 024/16/2001
773-741Chicago Zone 11
773-742Chicago Zone 0311/5/2001
773-743Chicago Zone 02
773-744Chicago Zone 068/30/2001
773-745Chicago Zone 05
773-746Chicago Zone 03
773-747Chicago Zone 041/7/2008
773-748Chicago Zone 10
773-749Chicago Zone 036/19/2007
773-750Chicago Zone 039/13/2001
773-751Chicago Zone 02
773-752Chicago Zone 07
773-753Chicago Zone 07
773-754Chicago Zone 0210/24/2006
773-755Chicago Zone 04
773-756Chicago Zone 03
773-757Chicago Zone 086/28/2001
773-758Chicago Zone 01
773-759Chicago Zone 035/21/2002
773-760Chicago Zone 01
773-761Chicago Zone 02
773-762Chicago Zone 06
773-763Chicago Zone 03
773-764Chicago Zone 02
773-765Chicago Zone 02
773-766Chicago Zone 039/15/2008
773-767Chicago Zone 08
773-768Chicago Zone 09
773-769Chicago Zone 02
773-770Chicago Zone 04
773-771Chicago Zone 01
773-772Chicago Zone 04
773-774Chicago Zone 03
773-775Chicago Zone 03
773-776Chicago Zone 08
773-777Chicago Zone 03
773-778Chicago Zone 08
773-779Chicago Zone 10
773-780Chicago Zone 08
773-781Chicago Zone 014/23/2001
773-782Chicago Zone 04
773-783Chicago Zone 07
773-784Chicago Zone 02
773-785Chicago Zone 10
773-786Chicago Zone 05
773-787Chicago Zone 10
773-788Chicago Zone 08
773-789Chicago Zone 087/12/2007
773-790Chicago Zone 03
773-791Chicago Zone 035/25/2001
773-792Chicago Zone 03
773-793Chicago Zone 03
773-794Chicago Zone 03
773-795Chicago Zone 07
773-796Chicago Zone 0211/1/2010
773-797Chicago Zone 05
773-798Chicago Zone 078/21/2008
773-799Chicago Zone 04
773-800Chicago Zone 026/25/2009
773-801Chicago Zone 065/19/2006
773-802Chicago Zone 01
773-803Chicago Zone 033/15/2007
773-804Chicago Zone 05
773-805Chicago Zone 01
773-806Chicago Zone 01
773-807Chicago Zone 028/15/2002
773-808Chicago Zone 07
773-809Chicago Zone 039/8/2008
773-810Chicago Zone 01
773-812Chicago Zone 033/23/2009
773-813Chicago Zone 01
773-814Chicago Zone 037/22/2002
773-815Chicago Zone 033/31/2009
773-816Chicago Zone 103/28/2005
773-817Chicago Zone 0310/16/2002
773-818Chicago Zone 01
773-819Chicago Zone 07
773-820Chicago Zone 01
773-821Chicago Zone 10
773-822Chicago Zone 06
773-823Chicago Zone 06
773-824Chicago Zone 03
773-825Chicago Zone 11
773-826Chicago Zone 06
773-827Chicago Zone 06
773-828Chicago Zone 02
773-829Chicago Zone 04
773-830Chicago Zone 05
773-831Chicago Zone 11
773-832Chicago Zone 04
773-833Chicago Zone 01
773-834Chicago Zone 07
773-835Chicago Zone 01
773-836Chicago Zone 05
773-837Chicago Zone 048/8/2001
773-838Chicago Zone 08
773-839Chicago Zone 0411/23/2015
773-840Chicago Zone 106/23/2006
773-841Chicago Zone 01
773-842Chicago Zone 01
773-843Chicago Zone 06
773-844Chicago Zone 035/25/2001
773-845Chicago Zone 014/23/2001
773-846Chicago Zone 07
773-847Chicago Zone 06
773-848Chicago Zone 01
773-849Chicago Zone 032/20/2007
773-850Chicago Zone 038/21/2008
773-851Chicago Zone 073/9/2001
773-852Chicago Zone 01
773-853Chicago Zone 0310/3/2006
773-854Chicago Zone 05
773-855Chicago Zone 07
773-856Chicago Zone 02
773-857Chicago Zone 04
773-858Chicago Zone 027/6/2001
773-859Chicago Zone 01
773-860Chicago Zone 01
773-861Chicago Zone 042/23/2007
773-862Chicago Zone 04
773-863Chicago Zone 08
773-864Chicago Zone 03
773-865Chicago Zone 028/30/2001
773-866Chicago Zone 02
773-867Chicago Zone 03
773-868Chicago Zone 04
773-869Chicago Zone 06
773-870Chicago Zone 038/6/2002
773-871Chicago Zone 04
773-873Chicago Zone 07
773-874Chicago Zone 07
773-875Chicago Zone 089/6/2001
773-876Chicago Zone 033/20/2006
773-877Chicago Zone 037/21/2006
773-878Chicago Zone 02
773-879Chicago Zone 01
773-880Chicago Zone 04
773-881Chicago Zone 10
773-882Chicago Zone 01
773-883Chicago Zone 04
773-884Chicago Zone 08
773-885Chicago Zone 033/8/2005
773-886Chicago Zone 0710/31/2007
773-887Chicago Zone 05
773-888Chicago Zone 046/25/2009
773-889Chicago Zone 05
773-890Chicago Zone 06
773-891Chicago Zone 0710/18/2006
773-892Chicago Zone 07
773-893Chicago Zone 06
773-894Chicago Zone 11
773-895Chicago Zone 018/30/2001
773-896Chicago Zone 07
773-897Chicago Zone 023/28/2008
773-898Chicago Zone 01
773-899Chicago Zone 033/15/2006
773-900Chicago Zone 038/19/2019
773-901Chicago Zone 105/15/2009
773-902Chicago Zone 09
773-903Chicago Zone 024/16/2001
773-904Chicago Zone 045/12/2008
773-905Chicago Zone 10
773-906Chicago Zone 11
773-907Chicago Zone 02
773-908Chicago Zone 01
773-909Chicago Zone 01
773-910Chicago Zone 01
773-912Chicago Zone 08
773-913Chicago Zone 09
773-914Chicago Zone 01
773-915Chicago Zone 07
773-916Chicago Zone 068/31/2010
773-917Chicago Zone 11
773-918Chicago Zone 08
773-919Chicago Zone 01
773-920Chicago Zone 06
773-921Chicago Zone 05
773-922Chicago Zone 05
773-923Chicago Zone 035/1/2020
773-924Chicago Zone 07
773-925Chicago Zone 08
773-926Chicago Zone 07
773-927Chicago Zone 06
773-928Chicago Zone 10
773-929Chicago Zone 04
773-930Chicago Zone 031/8/2007
773-931Chicago Zone 105/23/2001
773-932Chicago Zone 03
773-933Chicago Zone 09
773-934Chicago Zone 038/21/2002
773-935Chicago Zone 04
773-936Chicago Zone 078/30/2001
773-937Chicago Zone 08
773-938Chicago Zone 04
773-939Chicago Zone 082/21/2007
773-940Chicago Zone 0611/17/2008
773-941Chicago Zone 1011/27/2007
773-942Chicago Zone 02
773-943Chicago Zone 029/3/2010
773-944Chicago Zone 02
773-945Chicago Zone 056/25/2008
773-946Chicago Zone 105/22/2007
773-947Chicago Zone 07
773-948Chicago Zone 08
773-949Chicago Zone 032/24/2011
773-951Chicago Zone 0310/16/2006
773-952Chicago Zone 076/14/2007
773-953Chicago Zone 038/29/2007
773-954Chicago Zone 109/30/2005
773-955Chicago Zone 07
773-956Chicago Zone 069/4/2008
773-957Chicago Zone 03
773-960Chicago Zone 03
773-961Chicago Zone 02
773-962Chicago Zone 07
773-963Chicago Zone 037/17/2007
773-964Chicago Zone 108/21/2007
773-965Chicago Zone 01
773-966Chicago Zone 074/27/2006
773-967Chicago Zone 09
773-968Chicago Zone 032/12/2001
773-969Chicago Zone 041/7/2008
773-970Chicago Zone 105/15/2009
773-971Chicago Zone 107/11/2007
773-972Chicago Zone 01
773-973Chicago Zone 02
773-974Chicago Zone 11
773-975Chicago Zone 04
773-977Chicago Zone 02
773-978Chicago Zone 09
773-979Chicago Zone 106/8/2006
773-980Chicago Zone 105/15/2008
773-981Chicago Zone 10
773-982Chicago Zone 102/29/2008
773-983Chicago Zone 103/28/2002
773-984Chicago Zone 033/15/2007
773-985Chicago Zone 11
773-986Chicago Zone 0810/16/2007
773-987Chicago Zone 103/28/2005
773-988Chicago Zone 01
773-989Chicago Zone 02
773-990Chicago Zone 033/20/2006
773-991Chicago Zone 03
773-992Chicago Zone 03
773-993Chicago Zone 032/18/2011
773-994Chicago Zone 07
773-995Chicago Zone 10
773-996Chicago Zone 0810/16/2007
773-997Chicago Zone 0210/28/2008
773-998Chicago Zone 105/15/2009
773-999Chicago Zone 055/15/2009
  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
ChicagoCook 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 07:05:36 AM).

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