815 Area Code

Area code 815 generally covers Rockford, and Joliet in the U.S. State of Illinois.

Top cities in area code 815

City Prefixes
Rockford, IL11.9%
Joliet, IL7.7%
Dekalb, IL3.2%
Kankakee, IL2.8%
Freeport, IL2.3%
Woodstock, IL2.3%
Lockport, IL2.2%
Mchenry, IL2.2%
Crystal Lake, IL2%
Sterling, IL1.9%

Top telephone carriers in area code 815

Carrier Prefixes
Illinois Bell Tel20.1%
Frontier North17%
Level 3 Communications9.6%
Aero North Communications5.5%
New Cingular Wireless5.2%
Sprint Spectrum5.2%
Verizon5.1%
United States Cellular2.9%
Mediacom Telephony Of Illinois2.6%
Teleport Communications America2.3%

Area code 815 has 782 prefixes

Prefix Primary City Usage
815-200La SalleLandline
815-201RockfordWireless
815-202OglesbyWireless
815-203JolietWireless
815-204Crystal LakeWireless
815-205BrookfieldWireless
815-206WoodstockLandline
815-207JolietLandline
815-208FultonLandline
815-209RockfordLandline
815-210JolietWireless
815-212JolietLandline
815-213SterlingWireless
815-214KankakeeLandline
815-215New LenoxLandline
815-216BourbonnaisWireless
815-217DekalbLandline
815-218RockfordWireless
815-219Crystal LakeWireless
815-220La SalleLandline
815-221LockportLandline
815-222RockfordWireless
815-223La SalleLandline
815-224La SalleLandline
815-225MilledgevilleLandline
815-226RockfordLandline
815-227RockfordLandline
815-228OglesbyWireless
815-229RockfordLandline
815-230PlainfieldLandline
815-231RockfordLandline
815-232FreeportLandline
815-233FreeportLandline
815-234ByronLandline
815-235FreeportLandline
815-236WoodstockWireless
815-237GardnerLandline
815-238FreeportWireless
815-239PecatonicaLandline
815-240RockfordLandline
815-241DeerfieldWireless
815-242RockfordWireless
815-243RockfordWireless
815-244Mount CarrollLandline
815-245WoodstockWireless
815-246EarlvilleLandline
815-247German ValleyLandline
815-248DurandLandline
815-249Grand RidgeLandline
815-250La SalleLandline
815-251DixonLandline
815-252OglesbyWireless
815-253KemptonLandline
815-254PlainfieldLandline
815-255MinookaLandline
815-256CaberyLandline
815-257StreatorWireless
815-258JolietWireless
815-259ThomsonLandline
815-260JolietWireless
815-261Crystal LakeLandline
815-262RockfordWireless
815-263BourbonnaisWireless
815-264WatermanLandline
815-265GilmanLandline
815-266FreeportLandline
815-267PlainfieldLandline
815-268OnargaLandline
815-269DanforthLandline
815-270LanarkLandline
815-271MchenryLandline
815-272JolietLandline
815-273SavannaLandline
815-274JolietWireless
815-275FreeportWireless
815-276Crystal LakeLandline
815-277FrankfortLandline
815-278BourbonnaisWireless
815-279BourbonnaisWireless
815-280JolietLandline
815-281GalenaWireless
815-282Loves ParkLandline
815-283DekalbLandline
815-284DixonLandline
815-285DixonLandline
815-286HinckleyLandline
815-287VeronaLandline
815-288DixonLandline
815-289RockfordWireless
815-290MinookaLandline
815-291FreeportWireless
815-292Poplar GroveLandline
815-293LockportLandline
815-294BrookfieldWireless
815-295KankakeeLandline
815-296RockfordWireless
815-297FreeportLandline
815-298RockfordWireless
815-299RockfordWireless
815-300ChicagoLandline
815-301Crystal LakeLandline
815-302JolietWireless
815-303PrincetonWireless
815-304KankakeeLandline
815-305GardnerLandline
815-306LockportLandline
815-307MchenryLandline
815-308WoodstockLandline
815-309ShannonLandline
815-310UticaLandline
815-312RockfordLandline
815-313OttawaLandline
815-314ManhattanLandline
815-315RockfordLandline
815-316RockfordLandline
815-317Crescent CityLandline
815-318MorrisLandline
815-319RockfordWireless
815-320BourbonnaisWireless
815-321WoodstockLandline
815-322MchenryLandline
815-323BelvidereLandline
815-324OttawaLandline
815-325JolietWireless
815-326OglesbyWireless
815-327PlainfieldLandline
815-328LockportLandline
815-329RockfordLandline
815-330Crescent CityLandline
815-331MchenryLandline
815-332Cherry ValleyLandline
815-333WoodstockLandline
815-334WoodstockLandline
815-335WinnebagoLandline
815-336ChadwickLandline
815-337WoodstockLandline
815-338WoodstockLandline
815-339GranvilleLandline
815-340La MoilleLandline
815-341JolietWireless
815-342JolietWireless
815-343OglesbyWireless
815-344MchenryLandline
815-345WoodstockLandline
815-346GardnerLandline
815-347UnionWireless
815-348KankakeeLandline
815-349MchenryLandline
815-350AshtonLandline
815-351BourbonnaisWireless
815-352KankakeeLandline
815-353UnionWireless
815-354UnionWireless
815-355UnionWireless
815-356Crystal LakeLandline
815-357SenecaLandline
815-358CornellLandline
815-359HarmonLandline
815-360SubletteLandline
815-361ManhattanLandline
815-362German ValleyLandline
815-363MchenryLandline
815-364MorrisLandline
815-365ReddickLandline
815-366OttawaLandline
815-367WinslowLandline
815-368LostantLandline
815-369LenaLandline
815-370BourbonnaisWireless
815-371UticaLandline
815-372LockportLandline
815-373ElwoodLandline
815-374DwightLandline
815-375DekalbWireless
815-376OhioLandline
815-377Crescent CityLandline
815-378RockfordWireless
815-379WalnutLandline
815-380SterlingLandline
815-381RockfordLandline
815-382UnionWireless
815-383Crescent CityWireless
815-384EsmondLandline
815-385MchenryLandline
815-386BourbonnaisWireless
815-387RockfordLandline
815-388MchenryLandline
815-389South BeloitLandline
815-390BraidwoodLandline
815-391RockfordLandline
815-392KinsmanLandline
815-393Monroe CenterLandline
815-394RockfordLandline
815-395RockfordLandline
815-396StewardLandline
815-397RockfordLandline
815-398RockfordLandline
815-399RockfordLandline
815-400MorrisonLandline
815-401KankakeeLandline
815-402GalenaLandline
815-403MchenryWireless
815-404Crystal LakeWireless
815-405JolietWireless
815-406ByronLandline
815-407LockportLandline
815-408UticaLandline
815-409JolietWireless
815-410La SalleLandline
815-412FrankfortLandline
815-413MorrisLandline
815-414EarlvilleWireless
815-415SenecaLandline
815-416MorrisLandline
815-417BraidwoodLandline
815-418ManhattanLandline
815-419PontiacLandline
815-420EsmondLandline
815-421HerscherLandline
815-422Saint AnneLandline
815-423ElwoodLandline
815-424ElwoodLandline
815-425Crystal LakeLandline
815-426HerscherLandline
815-427Saint AnneLandline
815-428MartintonLandline
815-429SheldonLandline
815-430MchenryLandline
815-431OttawaLandline
815-432WatsekaLandline
815-433OttawaLandline
815-434OttawaLandline
815-435BeavervilleLandline
815-436PlainfieldLandline
815-437PutnamLandline
815-438TampicoLandline
815-439PlainfieldLandline
815-440DixonWireless
815-441SterlingWireless
815-442TonicaLandline
815-443Pearl CityLandline
815-444Crystal LakeLandline
815-445SheffieldLandline
815-446OglesbyLandline
815-447GranvilleLandline
815-448MazonLandline
815-449DakotaLandline
815-450MomenceWireless
815-451UnionWireless
815-452RutlandLandline
815-453AshtonLandline
815-454SheffieldLandline
815-455Crystal LakeLandline
815-456AshtonLandline
815-457Cissna ParkLandline
815-458BraidwoodLandline
815-459Crystal LakeLandline
815-460JolietLandline
815-461LockportLandline
815-462New LenoxLandline
815-463New LenoxLandline
815-464FrankfortLandline
815-465Grant ParkLandline
815-466Grant ParkLandline
815-467MinookaLandline
815-468MantenoLandline
815-469FrankfortLandline
815-470RockfordLandline
815-471WatsekaWireless
815-472MomenceLandline
815-473Crescent CityLandline
815-474JolietWireless
815-475MinookaLandline
815-476WilmingtonLandline
815-477Crystal LakeLandline
815-478ManhattanLandline
815-479Crystal LakeLandline
815-480RockfordWireless
815-481BrookfieldWireless
815-482UnionWireless
815-483JolietWireless
815-484RockfordLandline
815-485New LenoxLandline
815-486DonovanLandline
815-487PlainfieldLandline
815-488BrookfieldWireless
815-489RockfordLandline
815-490RockfordLandline
815-491RockfordWireless
815-492Apple RiverLandline
815-493LanarkLandline
815-494RockfordWireless
815-495LelandLandline
815-496SheridanLandline
815-497ComptonLandline
815-498SomonaukLandline
815-499SterlingWireless
815-500MarseillesLandline
815-501DekalbWireless
815-502WoodstockLandline
815-503MendotaWireless
815-504GardnerLandline
815-505RockfordWireless
815-506UnionLandline
815-507MomenceLandline
815-508DekalbWireless
815-509RockfordWireless
815-510StreatorLandline
815-512LockportLandline
815-513MorrisLandline
815-514JolietWireless
815-515WatsekaLandline
815-516RockfordLandline
815-517DekalbLandline
815-518Coal CityLandline
815-519RockfordWireless
815-520RockfordWireless
815-521MinookaLandline
815-522KirklandLandline
815-523KankakeeLandline
815-524LockportLandline
815-525South BeloitLandline
815-526Crystal LakeLandline
815-527WoodstockLandline
815-528MchenryLandline
815-529UnionWireless
815-530JolietLandline
815-531JolietLandline
815-532Coal CityWireless
815-533BrookfieldWireless
815-534FrankfortLandline
815-535SterlingLandline
815-536BrookfieldWireless
815-537ProphetstownLandline
815-538MendotaLandline
815-539MendotaLandline
815-540RockfordWireless
815-541FreeportWireless
815-542Deer GroveLandline
815-543RockfordWireless
815-544BelvidereLandline
815-545JolietWireless
815-546JolietWireless
815-547BelvidereLandline
815-548SterlingLandline
815-549KankakeeWireless
815-550Grant ParkLandline
815-551LanarkLandline
815-552LockportLandline
815-553JolietLandline
815-554East DubuqueLandline
815-556PlainfieldLandline
815-557JolietWireless
815-558RockfordWireless
815-560HarvardLandline
815-561RochelleLandline
815-562RochelleLandline
815-563DakotaLandline
815-564SterlingLandline
815-565MorrisonLandline
815-566BelvidereLandline
815-567CaberyLandline
815-568MarengoLandline
815-569CapronLandline
815-570SandwichLandline
815-571ShannonLandline
815-572MarengoLandline
815-573KankakeeLandline
815-574HarmonLandline
815-575WoodstockWireless
815-576PoloLandline
815-577PlainfieldLandline
815-578MchenryLandline
815-579La SalleWireless
815-580RockfordLandline
815-581Spring GroveLandline
815-582JolietWireless
815-583MorrisonLandline
815-584DwightLandline
815-585MorrisLandline
815-586RansomLandline
815-587OttawaLandline
815-588LockportLandline
815-589FultonLandline
815-590SterlingWireless
815-591HanoverLandline
815-592BourbonnaisWireless
815-593DekalbLandline
815-594Apple RiverLandline
815-595OregonLandline
815-596MarengoLandline
815-597BelvidereLandline
815-598ElizabethLandline
815-599FreeportLandline
815-600JolietLandline
815-601RockfordLandline
815-602KankakeeLandline
815-603KankakeeWireless
815-604BelvidereLandline
815-605Grant ParkLandline
815-606OttawaLandline
815-607FlanaganLandline
815-608RockfordWireless
815-609PlainfieldLandline
815-610CornellLandline
815-612GraymontLandline
815-613DixonWireless
815-614KankakeeLandline
815-615MendotaLandline
815-616FreeportWireless
815-617OttawaLandline
815-618FreeportWireless
815-619RocktonLandline
815-620MinookaLandline
815-621RockfordWireless
815-622SterlingLandline
815-623RoscoeLandline
815-624RocktonLandline
815-625SterlingLandline
815-626SterlingLandline
815-627Paw PawLandline
815-628West BrooklynLandline
815-629DurandLandline
815-630JolietWireless
815-631SterlingLandline
815-632SterlingLandline
815-633Loves ParkLandline
815-634Coal CityLandline
815-635ChatsworthLandline
815-636Loves ParkLandline
815-637Loves ParkLandline
815-638La MoilleLandline
815-639Loves ParkLandline
815-640OttawaLandline
815-641RockfordWireless
815-642MinookaLandline
815-643ArlingtonLandline
815-644Crescent CityLandline
815-645ByronLandline
815-646TiskilwaLandline
815-647CullomLandline
815-648HebronLandline
815-649GardnerLandline
815-650FreeportLandline
815-651JolietLandline
815-652DixonLandline
815-653Wonder LakeLandline
815-654Loves ParkLandline
815-655Coal CityLandline
815-656FreeportLandline
815-657ForrestLandline
815-658NewarkLandline
815-659GranvilleLandline
815-660LockportLandline
815-661MorrisLandline
815-662MomenceLandline
815-663Spring ValleyLandline
815-664Spring ValleyLandline
815-665OttawaLandline
815-666JolietWireless
815-667UticaLandline
815-668RockfordLandline
815-669MchenryLandline
815-670RockfordWireless
815-671JolietLandline
815-672StreatorLandline
815-673StreatorLandline
815-674StreatorWireless
815-675Spring GroveLandline
815-676PlainfieldLandline
815-677ElizabethLandline
815-678RichmondLandline
815-679MchenryLandline
815-680ManhattanLandline
815-681RockfordLandline
815-682MilfordLandline
815-683Crescent CityLandline
815-684ChadwickLandline
815-685JolietWireless
815-686Piper CityLandline
815-687WoodstockLandline
815-688StrawnLandline
815-689CullomLandline
815-690JolietWireless
815-691UticaLandline
815-692FairburyLandline
815-693JolietWireless
815-694CliftonLandline
815-695NewarkLandline
815-696RoscoeLandline
815-697ChebanseLandline
815-698AshkumLandline
815-699WyanetLandline
815-701WoodstockLandline
815-702SauneminLandline
815-703RockfordWireless
815-704South BeloitLandline
815-705MorrisLandline
815-706RockfordLandline
815-707GilmanLandline
815-708RockfordLandline
815-709Coal CityLandline
815-710MorrisLandline
815-712HarvardWireless
815-713RockfordLandline
815-714JolietLandline
815-715JolietWireless
815-716SterlingWireless
815-718SterlingWireless
815-719PrincetonWireless
815-720RockfordLandline
815-721RockfordLandline
815-722JolietLandline
815-723JolietLandline
815-724JolietLandline
815-725JolietLandline
815-726JolietLandline
815-727JolietLandline
815-728Wonder LakeLandline
815-729JolietLandline
815-730JolietLandline
815-731PlainfieldLandline
815-732OregonLandline
815-733PlainfieldLandline
815-734Mount MorrisLandline
815-735JolietWireless
815-736NewarkLandline
815-737CapronLandline
815-738Leaf RiverLandline
815-739SycamoreWireless
815-740JolietLandline
815-741JolietLandline
815-742RockfordWireless
815-743GraymontLandline
815-744JolietLandline
815-745WarrenLandline
815-746MarseillesLandline
815-747East DubuqueLandline
815-748DekalbLandline
815-749RockfordWireless
815-750MarseillesLandline
815-751DekalbWireless
815-752DekalbLandline
815-753DekalbLandline
815-754DekalbLandline
815-755DekalbWireless
815-756DekalbLandline
815-757DekalbWireless
815-758DekalbLandline
815-759MchenryLandline
815-760HennepinWireless
815-761DekalbWireless
815-762DekalbWireless
815-763RockfordWireless
815-764DekalbWireless
815-765Poplar GroveLandline
815-766DekalbWireless
815-767BrookfieldWireless
815-768JolietWireless
815-769SenecaLandline
815-770HarvardLandline
815-771AshkumLandline
815-772MorrisonLandline
815-773JolietLandline
815-774JolietLandline
815-775WoodstockWireless
815-776GalenaLandline
815-777GalenaLandline
815-778LyndonLandline
815-780La SalleLandline
815-781ChebanseLandline
815-782PlainfieldLandline
815-783GilmanLandline
815-784GenoaLandline
815-785WatsekaLandline
815-786SandwichLandline
815-787DekalbLandline
815-788Crystal LakeLandline
815-789OrangevilleLandline
815-790UnionWireless
815-791JolietWireless
815-792EarlvilleLandline
815-793DekalbWireless
815-794MarseillesLandline
815-795MarseillesLandline
815-796FlanaganLandline
815-797SomonaukLandline
815-798MilledgevilleLandline
815-799HarmonLandline
815-800Poplar GroveLandline
815-801FreeportLandline
815-802KankakeeLandline
815-803ByronLandline
815-804PecatonicaLandline
815-805DurandLandline
815-806FrankfortLandline
815-807German ValleyLandline
815-808WinslowLandline
815-809LenaLandline
815-810Pearl CityLandline
815-812DakotaLandline
815-813Apple RiverLandline
815-814WoodstockWireless
815-816DakotaLandline
815-817HanoverLandline
815-818WarrenLandline
815-819OrangevilleLandline
815-820ElizabethLandline
815-821FreeportLandline
815-822AnconaWireless
815-823JolietLandline
815-824ShabbonaLandline
815-825MaltaLandline
815-826SomonaukWireless
815-827Maple ParkLandline
815-828MinookaLandline
815-829ChadwickLandline
815-830OglesbyWireless
815-831DavisLandline
815-832SauneminLandline
815-833LenaLandline
815-834LockportLandline
815-835DixonLandline
815-836LockportLandline
815-837ForrestonLandline
815-838LockportLandline
815-839KankakeeLandline
815-840StocktonLandline
815-841Mount MorrisLandline
815-842PontiacLandline
815-843AshtonLandline
815-844PontiacLandline
815-845Apple RiverLandline
815-846JolietLandline
815-847RockfordLandline
815-848PontiacWireless
815-849SubletteLandline
815-850German ValleyLandline
815-851BourbonnaisWireless
815-852Apple RiverLandline
815-853WenonaLandline
815-854Long PointLandline
815-855MilledgevilleLandline
815-856LostantLandline
815-857AmboyLandline
815-858ElizabethLandline
815-859RochelleLandline
815-860ElwoodLandline
815-861UnionWireless
815-862CapronLandline
815-863RutlandLandline
815-864ShannonLandline
815-865DavisLandline
815-866PrincetonWireless
815-867PontiacWireless
815-868LenaLandline
815-869MagnoliaLandline
815-870RockfordWireless
815-871RockfordWireless
815-872PrincetonLandline
815-873RockfordLandline
815-874RockfordLandline
815-875PrincetonLandline
815-876PrincetonLandline
815-877Loves ParkLandline
815-878PrincetonWireless
815-879PrincetonLandline
815-880WoodstockLandline
815-881OregonLandline
815-882HennepinLandline
815-883OglesbyLandline
815-884HarvardLandline
815-885CaledoniaLandline
815-886LockportLandline
815-887HarvardLandline
815-888RochelleLandline
815-889MilfordLandline
815-890RockfordLandline
815-891WinnebagoLandline
815-892RockfordLandline
815-893Crystal LakeLandline
815-894LaddLandline
815-895SycamoreLandline
815-896DurandLandline
815-897LyndonLandline
815-898ElizabethLandline
815-899SycamoreLandline
815-900AmboyLandline
815-901DekalbLandline
815-902LyndonLandline
815-903MchenryWireless
815-904RockfordWireless
815-905LockportLandline
815-906Mount CarrollLandline
815-907MantenoLandline
815-908FreeportWireless
815-909DekalbLandline
815-910MendotaWireless
815-912BelvidereLandline
815-913JolietLandline
815-914RockfordWireless
815-915Coal CityLandline
815-916MinookaWireless
815-917RochelleLandline
815-918CliftonLandline
815-919JolietWireless
815-920CornellLandline
815-921RockfordLandline
815-922BourbonnaisWireless
815-923UnionLandline
815-924ProphetstownLandline
815-925HennepinLandline
815-926WilmingtonLandline
815-927JolietLandline
815-928KankakeeLandline
815-929KankakeeLandline
815-930ElizabethLandline
815-931JolietWireless
815-932KankakeeLandline
815-933KankakeeLandline
815-934EmingtonLandline
815-935KankakeeLandline
815-936KankakeeLandline
815-937KankakeeLandline
815-938ForrestonLandline
815-939KankakeeLandline
815-940GardnerLandline
815-941MorrisLandline
815-942MorrisLandline
815-943HarvardLandline
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