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815 area code

Area code 815 is in Illinois (IL), USA and some of the main locations covered are Joliet, Rockford, Plainfield, .. (jump to city list below).

Area code 815 has been in service since January 01, 1947 and is the older Numbering Plan Area in overlay complex 815/779 (overlaying area codes cover the same geographic area).

07:06:27 AM is the current time in area code 815 (Central Time).

Reverse phone lookup

Map of area code 815

More Illinois area codes

List of 815-NXX prefixes and corresponding locations

NPANXX¹	Area served²	Date³

815-200	La Salle	6/20/2006
815-201	Sheridan	8/15/2012
815-202	Oglesby	4/8/2008
815-203	Joliet
815-204	Crystal Lake
815-205	Coal City	1/31/2014
815-206	Woodstock
815-207	Joliet
815-208	Fulton
815-209	Rockford	2/4/2002
815-210	Joliet
815-212	Joliet
815-213	Sterling	9/29/2004
815-214	Kankakee
815-215	New Lenox	2/4/2002
815-216	Kankakee
815-217	De Kalb
815-218	Rockford
815-219	Crystal Lake	6/6/2006
815-220	La Salle
815-221	Lockport
815-222	Rockford
815-223	La Salle
815-224	La Salle
815-225	Milledgeville
815-226	Rockford
815-227	Rockford
815-228	Oglesby
815-229	Rockford
815-230	Plainfield
815-231	Rockford
815-232	Freeport
815-233	Freeport
815-234	Byron
815-235	Freeport
815-236	Woodstock
815-237	Gardner
815-238	Freeport
815-239	Pecatonica
815-240	Rock Cut	10/18/2010
815-241	Northbrook
815-242	Minooka	5/2/2014
815-243	Rockford
815-244	Mount Carroll
815-245	Woodstock
815-246	Earlville
815-247	Seward
815-248	Durand
815-249	Grand Ridge
815-250	La Salle	8/25/2006
815-251	Nelson
815-252	Oglesby
815-253	Kempton
815-254	Plainfield
815-255	Minooka	11/3/2009
815-256	Stelle
815-257	Streator
815-258	Joliet
815-259	Thomson
815-260	Joliet
815-261	Crystal Lake
815-262	Rockford
815-263	Kankakee
815-264	Waterman
815-265	Gilman
815-266	Freeport
815-267	Plainfield
815-268	Onarga
815-269	Danforth
815-270	Roscoe	4/24/2007
815-271	Mchenry
815-272	Joliet
815-273	Savanna
815-274	Joliet
815-275	Freeport
815-276	Crystal Lake
815-277	Frankfort
815-278	Kankakee
815-279	Kankakee
815-280	Joliet
815-281	Galena	6/15/2004
815-282	Rockford
815-283	Waterman	3/5/2010
815-284	Dixon
815-285	Dixon
815-286	Hinckley
815-287	Verona
815-288	Dixon
815-289	Rockford
815-290	Minooka	2/10/2006
815-291	Freeport
815-292	South Bergen
815-293	Lockport
815-294	La Grange
815-295	Kankakee
815-296	Rockford	11/20/2019
815-297	Freeport
815-298	Rockford
815-299	Rockford
815-300	New Lenox	12/22/2010
815-301	Crystal Lake
815-302	Joliet
815-303	Princeton
815-304	Kankakee
815-305	Gardner
815-306	Lockport
815-307	Mchenry
815-308	Woodstock
815-309	Shannon	7/18/2006
815-310	Utica
815-312	Rockford	12/15/2008
815-313	Ottawa
815-314	Manhattan
815-315	Rockford
815-316	Rockford
815-317	Crescent City
815-318	Morris
815-319	Rockford
815-320	New Lenox	4/28/2009
815-321	Woodstock
815-322	Mchenry
815-323	Belvidere	2/10/2005
815-324	Ottawa	1/8/2010
815-325	Joliet
815-326	Oglesby
815-327	Plainfield
815-328	Lockport
815-329	Rockford	3/11/2013
815-330	Crescent City
815-331	Mchenry
815-332	Cherry Valley
815-333	Woodstock
815-334	Woodstock
815-335	Winnebago
815-336	Coleta
815-337	Woodstock
815-338	Woodstock
815-339	Granville
815-340	La Moille	8/25/2006
815-341	Joliet
815-342	Joliet
815-343	Oglesby
815-344	Mchenry
815-345	Woodstock
815-346	Gardner
815-347	Woodstock
815-348	Kankakee	10/16/2009
815-349	Mchenry
815-350	Franklin Grove
815-351	Kankakee
815-352	Kankakee
815-353	Woodstock
815-354	Woodstock
815-355	Woodstock
815-356	Crystal Lake
815-357	Seneca
815-358	Cornell
815-359	Harmon
815-360	Sublette
815-361	Manhattan
815-362	German Valley
815-363	Mchenry
815-364	Morris
815-365	Reddick
815-366	Ottawa
815-367	Winslow
815-368	Lostant
815-369	Lena
815-370	Kankakee
815-371	Utica
815-372	Lockport
815-373	Elwood	11/4/2009
815-374	Dwight	11/4/2009
815-375	De Kalb
815-376	Ohio
815-377	Crescent City
815-378	Rockford
815-379	Walnut
815-380	Sterling
815-381	Rockford
815-382	Woodstock
815-383	Crescent City
815-384	Creston
815-385	Mchenry
815-386	Kankakee
815-387	Rockford
815-388	Mchenry
815-389	South Beloit
815-390	Braidwood	10/14/2004
815-391	Rockford
815-392	Kinsman
815-393	Monroe Center
815-394	Rockford
815-395	Rockford
815-396	Steward
815-397	Rockford
815-398	Rockford
815-399	Rockford
815-400	Morrison	2/15/2010
815-401	Kankakee
815-402	Galena
815-403	Mchenry
815-404	Crystal Lake
815-405	Joliet
815-406	Byron
815-407	Lockport
815-408	Utica
815-409	Joliet	8/18/2005
815-410	La Salle	2/4/2002
815-412	Frankfort
815-413	Morris
815-414	Earlville	10/14/2004
815-415	Seneca
815-416	Morris
815-417	Braidwood
815-418	Manhattan
815-419	Pontiac	3/19/2003
815-420	Rockford
815-421	Herscher
815-422	St Anne
815-423	Elwood
815-424	Elwood
815-425	Crystal Lake
815-426	Herscher
815-427	St Anne
815-428	Martinton
815-429	Sheldon
815-430	Mchenry
815-431	Ottawa
815-432	Watseka
815-433	Ottawa
815-434	Ottawa
815-435	Beaverville
815-436	Plainfield
815-437	Putnam
815-438	Tampico
815-439	Plainfield
815-440	Dixon
815-441	Sterling
815-442	Tonica
815-443	Pearl City
815-444	Crystal Lake
815-445	Manlius
815-446	Cedarpoint
815-447	Depue
815-448	Mazon
815-449	Dakota
815-450	Momence	7/27/2004
815-451	Woodstock
815-452	Toluca
815-453	Ashton
815-454	Sheffield
815-455	Crystal Lake
815-456	Franklin Grove
815-457	Cissna Park
815-458	Braidwood
815-459	Crystal Lake
815-460	Joliet
815-461	Lockport
815-462	New Lenox
815-463	New Lenox
815-464	Frankfort
815-465	Grant Park
815-466	Grant Park
815-467	Minooka
815-468	Manteno
815-469	Frankfort
815-470	Rockford
815-471	Watseka
815-472	Momence
815-473	Woodland
815-474	Joliet
815-475	Plattville
815-476	Wilmington
815-477	Crystal Lake
815-478	Manhattan
815-479	Crystal Lake
815-480	Rockford	3/22/2001
815-481	La Grange
815-482	Woodstock
815-483	Joliet
815-484	Rockford
815-485	New Lenox
815-486	Donovan
815-487	Plainfield
815-488	La Grange
815-489	Rockford
815-490	Rockford
815-491	Rockford	3/13/2013
815-492	Apple River
815-493	Lanark
815-494	Rockford
815-495	Leland
815-496	Sheridan
815-497	Compton
815-498	Somonauk
815-499	Sterling
815-500	Marseilles
815-501	De Kalb
815-502	Woodstock
815-503	Mendota
815-504	Gardner
815-505	Rockford
815-506	Union	2/27/2002
815-507	Momence	12/28/2001
815-508	De Kalb	6/16/2004
815-509	Rockford
815-510	Streator	1/8/2010
815-512	Lockport
815-513	Morris	2/27/2002
815-514	Joliet	1/24/2001
815-515	Watseka	2/4/2002
815-516	Rockford	1/24/2001
815-517	De Kalb	6/28/2004
815-518	Coal City	10/23/2001
815-519	Rockford
815-520	Rockford
815-521	Minooka
815-522	Kirkland
815-523	Kankakee
815-524	Lockport
815-525	South Beloit
815-526	Crystal Lake
815-527	Woodstock
815-528	Mchenry
815-529	Woodstock
815-530	Joliet
815-531	Joliet
815-532	Morris
815-533	La Grange
815-534	Frankfort
815-535	Sterling
815-536	La Grange
815-537	Prophetstown
815-538	Mendota
815-539	Mendota
815-540	Rockford
815-541	Freeport
815-542	Thomas
815-543	Rockford
815-544	Belvidere
815-545	Joliet
815-546	Joliet
815-547	Belvidere
815-548	Sterling
815-549	Kankakee
815-550	Grant Park
815-551	Lanark	8/1/2018
815-552	Lockport	4/10/2001
815-553	Joliet	4/10/2001
815-554	East Dubuque
815-556	Plainfield	4/10/2001
815-557	Joliet
815-558	Rockford
815-559	Chenoa
815-560	Harvard	5/3/2002
815-561	Rochelle
815-562	Rochelle
815-563	Cedarville
815-564	Sterling
815-565	Savanna
815-566	Belvidere	6/21/2002
815-567	Campus
815-568	Marengo
815-569	Capron
815-570	Sandwich	8/21/2002
815-571	Shannon	4/21/2006
815-572	Marengo
815-573	Kankakee	2/27/2002
815-574	Harmon
815-575	Woodstock
815-576	Polo
815-577	Plainfield
815-578	Mchenry
815-579	La Salle
815-580	Cherry Valley	3/18/2003
815-581	Spring Grove	10/6/2005
815-582	Joliet	10/6/2005
815-583	Morrison
815-584	Dwight
815-585	Morris	5/3/2002
815-586	Ransom
815-587	Ottawa	4/2/2002
815-588	Lockport
815-589	Fulton
815-590	Sterling	7/14/2003
815-591	Hanover
815-592	Kankakee
815-593	De Kalb
815-594	Apple River
815-595	Oregon	10/2/2003
815-596	Marengo	2/10/2006
815-597	Garden Prairie
815-598	Massbach
815-599	Freeport
815-600	Joliet	7/14/2003
815-601	Rockford
815-602	Kankakee
815-603	Joliet	9/28/2001
815-604	Belvidere	7/31/2019
815-605	Grant Park	4/2/2002
815-606	Ottawa
815-607	Flanagan	11/16/2004
815-608	Rockford	9/30/2002
815-609	Plainfield	10/24/2001
815-610	Cornell	11/16/2004
815-612	Graymont	11/16/2004
815-613	Dixon	8/30/2019
815-614	Kankakee
815-615	Mendota	10/31/2001
815-616	Freeport	1/7/2004
815-617	Ottawa
815-618	Freeport	12/21/2006
815-619	Rockton	5/27/2003
815-620	Minooka	10/31/2018
815-621	Rockford
815-622	Sterling
815-623	Roscoe
815-624	Rockton
815-625	Sterling
815-626	Sterling
815-627	Paw Paw
815-628	West Brooklyn
815-629	Shirland
815-630	Joliet	7/24/2006
815-631	Sterling
815-632	Sterling
815-633	Rockford
815-634	Coal City
815-635	Chatsworth
815-636	Rockford
815-637	Rockford
815-638	La Moille
815-639	Rockford
815-640	Ottawa	12/28/2001
815-641	Joliet	1/21/2008
815-642	Minooka
815-643	Dover
815-644	Crescent City
815-645	Stilman Valley
815-646	Tiskilwa
815-647	Cullom
815-648	Hebron
815-649	Gardner
815-650	Freeport
815-651	Joliet
815-652	Grand Detour
815-653	Wonder Lake
815-654	Rockford
815-655	Coal City	2/18/2019
815-656	Freeport	6/26/2002
815-657	Forrest
815-658	Newark	8/2/2019
815-659	Bureau
815-660	Lockport
815-661	Morris
815-662	Momence
815-663	Spring Valley
815-664	Spring Valley
815-665	Ottawa
815-666	Joliet	8/30/2006
815-667	Utica
815-668	Rockford	4/2/2009
815-669	Mchenry
815-670	Rockford
815-671	Joliet
815-672	Streator
815-673	Streator
815-674	Streator
815-675	Spring Grove
815-676	Plainfield
815-677	Dixon	3/17/2005
815-678	Richmond
815-679	Mchenry
815-680	Manhattan
815-681	Oglesby	7/30/2010
815-682	Stockland
815-683	Crescent City
815-684	Chadwick
815-685	Joliet
815-686	Piper City
815-687	Woodstock
815-688	Strawn
815-689	Cullom
815-690	Joliet
815-691	Utica
815-692	Fairbury
815-693	Joliet
815-694	Clifton
815-695	Newark
815-696	Roscoe	5/27/2003
815-697	Chebanse
815-698	Ashkum
815-699	Wyanet
815-701	Woodstock	4/2/2002
815-702	Saunemin
815-703	Rockford	6/4/2002
815-704	South Beloit	2/23/2001
815-705	Morris	12/28/2001
815-706	Rockford	9/3/2019
815-707	Gilman	12/6/2001
815-708	Rockford	6/23/2006
815-709	Coal City	12/28/2001
815-710	Morris	1/24/2001
815-712	La Salle	7/5/2002
815-713	Rockford	9/28/2001
815-714	Joliet
815-715	Joliet	5/22/2001
815-716	Sterling	10/31/2001
815-717	New Lenox
815-718	Sterling	10/22/2002
815-719	Princeton	7/5/2002
815-720	Rockford
815-721	Rockford
815-722	Joliet
815-723	Joliet
815-724	Joliet
815-725	Joliet
815-726	Joliet
815-727	Joliet
815-728	Wonder Lake
815-729	Joliet
815-730	Joliet
815-731	Plainfield	2/16/2006
815-732	Oregon
815-733	Plainfield
815-734	Mount Morris
815-735	Joliet
815-736	Lisbon
815-737	South Sharon
815-738	Leaf River
815-739	Sycamore
815-740	Joliet
815-741	Joliet
815-742	Rockford
815-743	Graymont
815-744	Joliet
815-745	Warren
815-746	Marseilles	5/13/2008
815-747	East Dubuque
815-748	De Kalb
815-749	Lockport	8/19/2022
815-750	Marseilles	1/23/2003
815-751	De Kalb
815-752	De Kalb
815-753	De Kalb
815-754	De Kalb
815-755	Seneca	1/8/2016
815-756	De Kalb
815-757	De Kalb
815-758	De Kalb
815-759	Mchenry
815-760	Bureau	10/25/2005
815-761	De Kalb
815-762	De Kalb
815-764	De Kalb
815-765	Poplar Grove
815-766	De Kalb
815-767	La Grange	4/16/2001
815-768	Joliet
815-769	Seneca	4/27/2001
815-770	Harvard	2/13/2006
815-771	Ashkum
815-772	Morrison
815-773	Joliet
815-774	Joliet
815-775	Woodstock
815-776	Galena
815-777	Galena
815-778	Lyndon
815-780	La Salle	8/22/2001
815-781	Chebanse
815-782	Plainfield
815-783	Gilman
815-784	Genoa
815-785	Watseka
815-786	Sandwich
815-787	De Kalb
815-788	Crystal Lake	3/22/2001
815-789	Orangeville
815-790	Woodstock
815-791	Joliet	7/24/2001
815-792	Harding
815-793	De Kalb	6/25/2001
815-794	Marseilles
815-795	Marseilles
815-796	Flanagan
815-797	Somonauk	12/6/2001
815-798	Milledgeville
815-799	Manlius	8/22/2001
815-800	Poplar Grove	3/24/2010
815-801	Freeport
815-802	Kankakee	9/28/2001
815-803	Byron	3/22/2001
815-804	Pecatonica
815-805	Durand
815-806	Frankfort
815-807	German Valley
815-808	Winslow
815-809	Lena
815-810	Pearl City
815-812	Dakota
815-813	Apple River
815-814	Woodstock	4/27/2001
815-816	Cedarville
815-817	Hanover
815-818	Warren
815-819	Orangeville
815-820	Elizabeth
815-821	Freeport	5/22/2001
815-822	Streator	4/27/2001
815-823	Joliet
815-824	Shabbona
815-825	Malta
815-826	Somonauk	5/12/2004
815-827	Maple Park
815-828	Minooka	8/22/2001
815-829	Chadwick
815-830	Oglesby
815-831	Davis
815-832	Saunemin
815-833	Mcconnell
815-834	Lockport
815-835	Dixon
815-836	Lockport
815-837	Forreston
815-838	Lockport
815-839	Kankakee
815-840	Stockton
815-841	Mount Morris
815-842	Pontiac
815-843	Ashton
815-844	Pontiac
815-845	Scales Mound
815-846	Joliet
815-847	Rockford	4/18/2005
815-848	Pontiac
815-849	Sublette
815-850	Seward
815-851	Kankakee
815-852	Scales Mound
815-853	Wenona
815-854	Long Point
815-855	Milledgeville	4/2/2002
815-856	Leonore
815-857	Amboy
815-858	Elizabeth
815-859	Rochelle	9/30/2019
815-860	Elwood	3/5/2010
815-861	Woodstock
815-862	Richmond	11/18/2008
815-863	Rutland
815-864	Shannon
815-865	Davis
815-866	Princeton
815-867	Pontiac	4/27/2001
815-868	Mcconnell
815-869	Magnolia
815-870	Rockford
815-871	Rockford
815-872	Princeton
815-873	New Milford
815-874	New Milford
815-875	Princeton
815-876	Princeton
815-877	Rockford
815-878	Princeton
815-879	Princeton
815-880	Woodstock	1/24/2001
815-881	Oregon
815-882	Mcnabb
815-883	Oglesby
815-884	Earlville	3/23/2010
815-885	Rock Cut
815-886	Lockport
815-887	Harvard	5/3/2002
815-888	Rochelle	11/27/2006
815-889	Milford
815-890	New Milford	5/27/2003
815-891	Winnebago	6/25/2001
815-892	Stilman Valley	11/21/2019
815-893	Crystal Lake	12/30/2004
815-894	Ladd
815-895	Sycamore
815-896	Shirland	7/24/2001
815-897	Lyndon
815-898	Massbach	2/23/2001
815-899	Sycamore
815-900	Mchenry	8/4/2010
815-901	De Kalb	2/14/2005
815-902	Thomson	6/25/2001
815-903	Mchenry	2/27/2002
815-904	Rockford	8/31/2006
815-905	Lockport	2/27/2002
815-906	Mount Carroll	4/21/2006
815-907	Manteno	12/6/2001
815-908	Freeport
815-909	De Kalb	5/22/2001
815-910	Mendota	6/25/2001
815-912	Belvidere	9/28/2001
815-913	Chadwick
815-914	Rockford
815-915	Princeton	12/28/2001
815-916	Plattville
815-917	Rochelle
815-918	Clifton	8/22/2001
815-919	Joliet	2/23/2001
815-920	Cornell	11/22/2005
815-921	Rockford	4/27/2001
815-922	Kankakee
815-923	Union
815-924	Prophetstown
815-925	Hennepin
815-926	Wilmington	5/22/2001
815-927	Joliet
815-928	Kankakee
815-929	Kankakee
815-930	Elizabeth	6/4/2002
815-931	Joliet
815-932	Kankakee
815-933	Kankakee
815-934	Emington
815-935	Kankakee
815-936	Kankakee
815-937	Kankakee
815-938	Forreston
815-939	Kankakee
815-940	Gardner	5/3/2002
815-941	Morris
815-942	Morris
815-943	Harvard
815-944	Momence
815-945	Chenoa
815-946	Polo
815-947	Stockton
815-948	Hooppole
815-949	Cabery
815-951	Amboy
815-952	Lanark	7/18/2006
815-953	Kankakee
815-954	Kankakee
815-955	Joliet	7/5/2002
815-956	Morrison
815-957	Rockton	2/22/2005
815-960	Leaf River	6/4/2002
815-961	Rockford
815-962	Rockford
815-963	Rockford
815-964	Rockford
815-965	Rockford
815-966	Rockford
815-967	Rockford
815-968	Rockford
815-969	Rockford
815-970	Sycamore	7/5/2002
815-971	Rockford
815-972	Rockford
815-973	Dixon
815-974	Hebron	7/3/2018
815-975	Belvidere	9/3/2002
815-977	Rockford	6/25/2003
815-978	Rockford
815-979	Rockford
815-980	Rockford	6/15/2006
815-981	De Kalb	9/30/2002
815-982	Tampico
815-983	Rockford
815-984	Wellington
815-985	Rockford
815-986	Rockford
815-987	Rockford
815-988	Rockford
815-989	Prophetstown	1/4/2005
815-990	Freeport	10/22/2002
815-991	Sycamore
815-992	Streator	4/21/2005
815-993	Oglesby	9/22/2006
815-994	Dixon	4/14/2003
815-995	De Kalb	6/10/2009
815-996	Savanna
815-997	Rockford	3/26/2003
815-998	Odell
815-999	Joliet	7/14/2003

The NPA is the Numbering Plan Area (area code) and NXX is the central office code.
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.
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 815

City⁴	County	Time⁵
Alden	McHenry	C
Amboy	Lee	C
Ancona	Livingston	C
Apple River	Jo Daviess	C
Arlington	Bureau	C
Aroma Park	Kankakee	C
Ashkum	Iroquois	C
Ashton	Lee	C
Baileyville	Ogle	C
Beaverville	Iroquois	C
Belvidere	Boone	C
Blackstone	Livingston	C
Bonfield	Kankakee	C
Bourbonnais	Kankakee	C
Braceville	Grundy	C
Bradley	Kankakee	C
Braidwood	Will	C
Buckingham	Kankakee	C
Bureau	Bureau	C
Byron	Ogle	C
Cabery	Ford	C
Caledonia	Boone	C
Campus	Livingston	C
Capron	Boone	C
Cedar Point	La Salle	C
Cedarville	Stephenson	C
Chadwick	Carroll	C
Chana	Ogle	C
Channahon	Will	C
Chatsworth	Livingston	C
Chebanse	Iroquois	C
Chenoa	McLean	C
Cherry	Bureau	C
Cherry Valley	Winnebago	C
Cissna Park	Iroquois	C
Clare	Dekalb	C
Claytonville	Iroquois	C
Clifton	Iroquois	C
Coal City	Grundy	C
Compton	Lee	C
Cornell	Livingston	C
Cortland	Dekalb	C
Crescent City	Iroquois	C
Creston	Ogle	C
Crystal Lake	McHenry	C
Cullom	Livingston	C
Dakota	Stephenson	C
Dalzell	Bureau	C
Dana	La Salle	C
Danforth	Iroquois	C
Davis	Stephenson	C
Davis Junction	Ogle	C
Deer Grove	Whiteside	C
Dekalb	Dekalb	C
Depue	Bureau	C
Dixon	Lee	C
Donovan	Iroquois	C
Dover	Bureau	C
Durand	Winnebago	C
Dwight	Livingston	C
Earlville	La Salle	C
East Dubuque	Jo Daviess	C
Eldena	Lee	C
Eleroy	Stephenson	C
Elizabeth	Jo Daviess	C
Elwood	Will	C
Emington	Livingston	C
Esmond	Dekalb	C
Essex	Kankakee	C
Fairbury	Livingston	C
Flanagan	Livingston	C
Forrest	Livingston	C
Forreston	Ogle	C
Frankfort	Will	C
Franklin Grove	Lee	C
Freeport	Stephenson	C
Fulton	Whiteside	C
Galena	Jo Daviess	C
Galt	Whiteside	C
Garden Prairie	Boone	C
Gardner	Grundy	C
Genoa	Dekalb	C
German Valley	Stephenson	C
Gilman	Iroquois	C
Goodwine	Iroquois	C
Grand Ridge	La Salle	C
Grant Park	Kankakee	C
Granville	Putnam	C
Graymont	Livingston	C
Hanover	Jo Daviess	C
Harmon	Lee	C
Harvard	McHenry	C
Hebron	McHenry	C
Hennepin	Putnam	C
Herscher	Kankakee	C
Hinckley	Dekalb	C
Holcomb	Ogle	C
Homer Glen	Will	C
Hooppole	Henry	C
Hopkins Park	Kankakee	C
Iroquois	Iroquois	C
Joliet	Will	C
Kankakee	Kankakee	C
Kasbeer	Bureau	C
Kempton	Ford	C
Kent	Stephenson	C
Kingston	Dekalb	C
Kinsman	Grundy	C
Kirkland	Dekalb	C
La Moille	Bureau	C
La Salle	La Salle	C
Ladd	Bureau	C
Lanark	Carroll	C
Leaf River	Ogle	C
Lee	Lee	C
Lee Center	Lee	C
Leland	La Salle	C
Lena	Stephenson	C
Leonore	La Salle	C
Lindenwood	Ogle	C
Lockport	Will	C
Long Point	Livingston	C
Lostant	La Salle	C
Loves Park	Winnebago	C
Lyndon	Whiteside	C
Machesney Park	Winnebago	C
Magnolia	Putnam	C
Malden	Bureau	C
Malta	Dekalb	C
Manhattan	Will	C
Manlius	Bureau	C
Manteno	Kankakee	C
Maple Park	Kane	C
Marengo	McHenry	C
Mark	Putnam	C
Marseilles	La Salle	C
Martinton	Iroquois	C
Mazon	Grundy	C
Mc Connell	Stephenson	C
Mc Nabb	Putnam	C
McHenry	McHenry	C
Mendota	La Salle	C
Milford	Iroquois	C
Milledgeville	Carroll	C
Millington	Kendall	C
Minooka	Grundy	C
Momence	Kankakee	C
Monroe Center	Ogle	C
Morris	Grundy	C
Morrison	Whiteside	C
Mount Carroll	Carroll	C
Mount Morris	Ogle	C
Nachusa	Lee	C
New Bedford	Bureau	C
New Lenox	Will	C
Newark	Kendall	C
Nora	Jo Daviess	C
Odell	Livingston	C
Oglesby	La Salle	C
Ohio	Bureau	C
Onarga	Iroquois	C
Orangeville	Stephenson	C
Oregon	Ogle	C
Ottawa	La Salle	C
Papineau	Iroquois	C
Paw Paw	Lee	C
Pearl City	Stephenson	C
Pecatonica	Winnebago	C
Peru	La Salle	C
Piper City	Ford	C
Plainfield	Will	C
Polo	Ogle	C
Pontiac	Livingston	C
Poplar Grove	Boone	C
Princeton	Bureau	C
Prophetstown	Whiteside	C
Putnam	Putnam	C
Ransom	La Salle	C
Reddick	Kankakee	C
Richmond	McHenry	C
Ridott	Stephenson	C
Ringwood	McHenry	C
Rochelle	Ogle	C
Rock City	Stephenson	C
Rock Falls	Whiteside	C
Rockford	Winnebago	C
Rockton	Winnebago	C
Romeoville	Will	C
Roscoe	Winnebago	C
Rutland	La Salle	C
Sandwich	Dekalb	C
Saunemin	Livingston	C
Savanna	Carroll	C
Scales Mound	Jo Daviess	C
Seatonville	Bureau	C
Seneca	La Salle	C
Serena	La Salle	C
Seward	Winnebago	C
Shabbona	Dekalb	C
Shannon	Carroll	C
Sheffield	Bureau	C
Sheldon	Iroquois	C
Sheridan	La Salle	C
Shirland	Winnebago	C
Somonauk	Dekalb	C
South Beloit	Winnebago	C
South Wilmington	Grundy	C
Spring Grove	McHenry	C
Spring Valley	Bureau	C
St Anne	Kankakee	C
Standard	Putnam	C
Sterling	Whiteside	C
Steward	Lee	C
Stillman Valley	Ogle	C
Stockland	Iroquois	C
Stockton	Jo Daviess	C
Strawn	Livingston	C
Streator	La Salle	C
Sublette	Lee	C
Sycamore	Dekalb	C
Tampico	Whiteside	C
Thomson	Carroll	C
Tiskilwa	Bureau	C
Toluca	Marshall	C
Tonica	La Salle	C
Triumph	La Salle	C
Troy Grove	La Salle	C
Union	McHenry	C
Union Hill	Kankakee	C
Utica	La Salle	C
Van Orin	Bureau	C
Verona	Grundy	C
Walnut	Bureau	C
Warren	Jo Daviess	C
Waterman	Dekalb	C
Watseka	Iroquois	C
Wedron	La Salle	C
Wellington	Iroquois	C
Wenona	Marshall	C
West Brooklyn	Lee	C
Wilmington	Will	C
Winnebago	Winnebago	C
Winslow	Stephenson	C
Wonder Lake	McHenry	C
Woodland	Iroquois	C
Woodstock	McHenry	C
Woosung	Ogle	C
Wyanet	Bureau	C

Listed in the table above are most, often not all places served by area code 815. 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.
C stands for Central Time (currently 07:06:27 AM).

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