Area Code — 815

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Phone numbers in area code 815 cover the cities of Alden, Bull Valley, Crystal Lake, Prairie Grove, Ridgefield, Lakewood, Village Of Lakewood, Vlg Of Lakewd, Chemung, Harvard, Hebron, Holiday Hills, Johnsburg, Lakemoor, Mccullom Lake, Mchenry, Sunnyside, Volo, Richmond, Solon Mills, Ringwood, Spring Grove, Wonder Lake, Greenwood, Woodstock, Clare, Cortland, Creston, Dekalb, Esmond, Genoa, Herbert, Kingston, Valley View, Fairdale, Kirkland, Malta, Lily Lake, Maple Park, Virgil, Coral, Marengo, Sycamore, Union, Crest Hill, Joliet, Shorewood, Braceville, Godley, Braidwood, Channahon, Carbon Hill, Coal City, Diamond, Eileen, Dwight, Elwood, Frankfort, Gardner, Downtown Station Joliet, Cresthill, Stateville, Rockdale, Kinsman, Homer Glen, Lockport, Manhattan, Wilton Center, Mazon, Romeoville, Minooka, Morris, New Lenox, Odell, Ransom, Chicago Heights, East Brooklyn, S Wilmington, South Wilmington, Verona, Ballou, Custer Park, Lorenzo, Ritchie, Symerton, Wilmington, Earlville, Harding, Rollo, Hinckley, Lee, Baker, Leland, Millington, Helmar, Lisbon, Nettlecreek, Newark, Plainfield, Sandwich, Serena, Shabbona, Norway, Sheridan, Somonauk, Scarboro, Steward, Mcgirr, Waterman, Wedron, Irwin, Kankakee, Aroma Park, Ashkum, Beaverville, Bonfield, Bourbonnais, Bradley, Buckingham, Cabery, Stelle, Campus, Chatsworth, Chebanse, Sammons Point, Cissna Park, Claytonville, Clifton, Crescent City, Cullom, Danforth, Donovan, Emington, Essex, Gilman, Goodwine, Grant Park, Herscher, Hopkins Park, Iroquois, Kempton, Manteno, Martinton, Milford, Momence, Onarga, Papineau, Pembroke Township, Pembroke Twp, Saint Anne, Piper City, Reddick, St Anne, Sun River Ter, Sun River Terrace, Sheldon, Stockland, Union Hill, Watseka, Wellington, Woodland, Apple River, Ashton, Baileyville, Belvidere, Byron, Argyle, Caledonia, Capron, Cedarville, Chadwick, Chana, Honey Creek, Paynes Point, Cherry Valley, Irene, Dakota, Davis, Davis Jct, Davis Junction, Dixon, Grand Detour, Nelson, Prairieville, Walton, Durand, East Dubuque, Menominee, Eleroy, Elizabeth, Woodbine, Forreston, Haldane, Franklin Grove, Franklin Grv, Freeport, Scioto Mills, Galena, Galt, Bonus, Garden Pr, Garden Prairie, German Valley, Hanover, Harmon, Holcomb, Kent, Lake Carroll, Lanark, Egan, Leaf River, Lena, Waddams Grove, Lindenwood, Mc Connell, Mcconnell, Milledgeville, Monroe Center, Mount Carroll, Mt Carroll, Mount Morris, Mt Morris, Nachusa, Nora, Oneco, Orangeville, Oregon, Loran, Pearl City, Pecatonica, Brookville, Polo, Stratford, Blaine, Candlewick Lake, Poplar Grove, Ridott, Flag Center, Flagg, Hillcrest, Kings, Rochelle, Rock City, Rock Grove, Rock Falls, Yeoward Addition, Yeowardville, Rockton, Roscoe, Savanna, Savanna Army Depot, Scales Mound, Scalesmound, Seward, Shannon, Shirland, Beloit, South Beloit, Coleta, Sterling, Stillman Valley, Stillman Vly, Stockton, Warren, Winnebago, Winslow, Woosung, Rockford, Machesney Park, Machesney Pk, Morristown, New Milford, Loves Park, Deer Grove, Fenton, East Clinton, East Fulton, Fulton, Garden Plain, Annawan, Hooppole, Lyndon, Clyde, Genesee, Malvern, Morrison, Round Grove, Union Grove, Ustick, Brookhaven, Leon Corners, Portland, Portland Corners, Prophetstown, Wethersfield, Hahnaman, Tampico, Thomas, Thompson, Thomson, Dimmick, La Salle, Rockwell, Tomahawk Bluff, Amboy, Binghampton, Maytown, Shaws, Ancona, Reading, Arlington, Blackstone, Sunbury, Bureau, Bureau Junction, Cedar Point, Cherry, Compton, The Burg, Cornell, Manville, Dalzell, Dana, De Pue, Depue, Depue Junction, Howe, Dover, Eldena, Farm Ridge, Grand Ridge, Granville, Florid, Hennepin, Kasbeer, Ladd, Ladd Junction, La Moille, Lee Center, Leonore, Long Point, Lostant, Mount Palatine, Mc Nabb, Mcnabb, Lake Wildwood, Magnolia, Malden, Zearing, Manlius, Mark, Danway, Marseilles, Mendota, Meriden, New Bedford, Jonesville, Oglesby, Piety Hill, Limerick, Ohio, Brickton, Dayton, Naplate, North Ottawa, Ottawa, Prairie Center, Stoneyville, Woodland Addition, Paw Paw, Peru, Coal Hollow, Hollowayville, Princeton, Rutland, Seatonville, Seneca, Stavanger, Sheffield, Ottoville, Spring Valley, Webster Park, Standard, Kangley, Kernan, Missal, Munster, South Streator, Streator, Streator East, Streator West, Sublette, Lone Tree, Providence, Tiskilwa, Pattonsburg, Toluca, Lowell, Tonica, Vermilionville, Triumph, Troy Grove, North Utica, Utica, Van Orin, Normandy, Walnut, East Wenona, Evans, Garfield, Leeds, Wenona, West Brooklyn, Wyanet, Lake Thunderbird, Putnam, Chenoa, Meadows, Weston, Yates, Avoca, Champlin, Fairbury, Flanagan, Nebraska Township, Forrest, Pleasant Ridge, Wing, Graymont, Cayuga, Eppards Point, Mcdowell, Ocoya, Owego, Pontiac, Rooks Creek, Rowe, Rugby, Swygert, Vermillion Estates, Eylar, Saunemin, Scovel, Strawn in IL

The 815 area code covers the zip codes 60001, 60012, 60014, 60033, 60034, 60039, 60050, 60051, 60071, 60072, 60081, 60097, 60098, 60111, 60112, 60113, 60115, 60129, 60135, 60145, 60146, 60150, 60151, 60152, 60178, 60180, 60403, 60404, 60407, 60408, 60410, 60416, 60420, 60421, 60423, 60424, 60431, 60432, 60433, 60434, 60435, 60436, 60437, 60441, 60442, 60444, 60446, 60447, 60450, 60451, 60460, 60470, 60474, 60479, 60481, 60518, 60520, 60530, 60531, 60537, 60541, 60544, 60548, 60549, 60550, 60551, 60552, 60553, 60556, 60557, 60585, 60586, 60901, 60910, 60911, 60912, 60913, 60914, 60915, 60917, 60919, 60920, 60921, 60922, 60924, 60926, 60927, 60928, 60929, 60930, 60931, 60934, 60935, 60938, 60939, 60940, 60941, 60944, 60945, 60946, 60950, 60951, 60953, 60954, 60955, 60956, 60958, 60959, 60961, 60964, 60966, 60967, 60969, 60970, 60973, 60974, 61001, 61006, 61007, 61008, 61010, 61011, 61012, 61013, 61014, 61015, 61016, 61018, 61019, 61020, 61021, 61024, 61025, 61027, 61028, 61030, 61031, 61032, 61036, 61037, 61038, 61039, 61041, 61042, 61043, 61044, 61046, 61047, 61048, 61049, 61050, 61051, 61052, 61053, 61054, 61057, 61059, 61060, 61061, 61062, 61063, 61064, 61065, 61067, 61068, 61070, 61071, 61072, 61073, 61074, 61075, 61077, 61078, 61079, 61080, 61081, 61084, 61085, 61087, 61088, 61089, 61091, 61101, 61102, 61103, 61104, 61105, 61106, 61107, 61108, 61109, 61110, 61111, 61112, 61114, 61115, 61125, 61126, 61130, 61131, 61132, 61243, 61251, 61252, 61258, 61261, 61270, 61277, 61283, 61285, 61301, 61310, 61311, 61312, 61313, 61315, 61316, 61317, 61318, 61319, 61320, 61321, 61322, 61323, 61324, 61325, 61326, 61327, 61328, 61329, 61330, 61331, 61332, 61333, 61334, 61335, 61336, 61337, 61338, 61340, 61341, 61342, 61346, 61348, 61349, 61350, 61353, 61354, 61356, 61358, 61359, 61360, 61361, 61362, 61363, 61364, 61367, 61368, 61369, 61370, 61371, 61372, 61373, 61374, 61376, 61377, 61378, 61379, 61560, 61726, 61739, 61740, 61741, 61743, 61764, 61769, 61775 in IL

Rate centers: LA SALLE, ROCKFORD, OGLESBY, JOLIET, CRYSTAL LK, LA GRANGE, WOODSTOCK, FULTON, STERLING, KANKAKEE, NEW LENOX, DE KALB, LOCKPORT, MILLEDGEVL, PLAINFIELD, FREEPORT, BYRON, GARDNER, PECATONICA, ROCK CUT, NORTHBROOK, MT CARROLL, EARLVILLE, SEWARD, DURAND, GRANDRIDGE, NELSON, KEMPTON, MINOOKA, STELLE, STREATOR, THOMSON, WATERMAN, GILMAN, ONARGA, DANFORTH, ROSCOE, MCHENRY, SAVANNA, FRANKFORT, GALENA, DIXON, HINCKLEY, VERONA, SO BERGEN, PRINCETON, SHANNON, UTICA, OTTAWA, MANHATTAN, CRESCENTCY, MORRIS, BELVIDERE, CHERRY VLY, WINNEBAGO, COLETA, GRANVILLE, LA MOILLE, FRANKLIGRV, SENECA, CORNELL, HARMON, SUBLETTE, GERMAN VLY, REDDICK, WINSLOW, LOSTANT, LENA, ELWOOD, DWIGHT, OHIO, WALNUT, CRESTON, SO BELOIT, BRAIDWOOD, KINSMAN, MONROE CTR, STEWARD, MORRISON, PONTIAC, HERSCHER, ST ANNE, MARTINTON, SHELDON, WATSEKA, BEAVERVL, PUTNAM, TAMPICO, TONICA, PEARL CITY, MANLIUS, CEDARPOINT, DEPUE, MAZON, DAKOTA, MOMENCE, TOLUCA, ASHTON, SHEFFIELD, CISSNAPARK, GRANT PARK, MANTENO, WOODLAND, PLATTVILLE, WILMINGTON, DONOVAN, APPLERIVER, LANARK, LELAND, SHERIDAN, COMPTON, SOMONAUK, MARSEILLES, MENDOTA, UNION, COAL CITY, KIRKLAND, PROPHETSTN, THOMAS, E DUBUQUE, HARVARD, ROCHELLE, CEDARVILLE, CAMPUS, MARENGO, CAPRON, SANDWICH, POLO, SPRING GRV, RANSOM, HANOVER, OREGON, GARDENPRRI, MASSBACH, GRANDDTOUR, FLANAGAN, GRAYMONT, ROCKTON, HOOPPOLE, PAW PAW, W BROOKLYN, SHIRLAND, CHATSWORTH, DOVER, STILMANVLY, TISKILWA, CULLOM, HEBRON, WONDERLAKE, FORREST, BUREAU, SPRING VLY, RICHMOND, STOCKLAND, CHADWICK, PIPER CITY, STRAWN, FAIRBURY, CLIFTON, NEWARK, CHEBANSE, ASHKUM, WYANET, SAUNEMIN, LYNDON, MT MORRIS, LISBON, SO SHARON, LEAF RIVER, SYCAMORE, WARREN, POPLAR GRV, GENOA, ORANGEVL, HARDING, ELIZABETH, SHABBONA, MALTA, MAPLE PARK, DAVIS, MCCONNELL, FORRESTON, STOCKTON, SCALESMOND, WENONA, LONG POINT, LEONORE, AMBOY, RUTLAND, MAGNOLIA, NEWMILFORD, MCNABB, MILFORD, LADD, HENNEPIN, EMINGTON, CHENOA, CABERY, WELLINGTON, ODELL

Companies: PAETEC COMMUNICATIONS, INC., SPRINT SPECTRUM L.P., BANDWIDTH.COM CLEC, LLC, CELLCO PARTNERSHIP DBA VERIZON WIRELESS, USA MOBILITY WIRELESS, INC., NEW CINGULAR WIRELESS PCS, LLC, US XCHANGE OF ILLINOIS LLC DBA CHOICE ONE COMM IL, AMERITECH ILLINOIS, AT&T LOCAL, GLOBALCOM, INC., LEVEL 3 COMMUNICATIONS, LLC, NEXTEL COMMUNICATIONS, INC., SPRINT COMMUNICATIONS COMPANY, L.P., MEDIACOM TELEPHONY OF ILLINOIS, LLC, MCLEODUSA TELECOMMUNICATIONS SERVICES, INC., T-MOBILE USA, INC., UNITED STATES CELLULAR CORP.LINOIS, RCN TELECOM SERVICES OF ILLINOIS, INC., MCI WORLDCOM COMMUNICATIONS, INC., CYGNUS TELECOMMUNICATIONS CORPORATION, CBEYOND COMMUNICATIONS, LLC, TELEPORT COMMUNICATIONS GROUP - CHICAGO, BROADWING COMMUNICATIONS, LLC, DIGITAL NETWORK ACCESS COMMUNICATIONS, INC., XO ILLINOIS, INC., PEERLESS NETWORK OF ILLINOIS, LLC, CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS, COMCAST PHONE OF ILLINOIS, LLC DBA COMCO, ACCESS ONE, INC., FRONTIER NORTH, INC., BITWISE COMMUNICATIONS, INC., CHARTER FIBERLINKLINOIS, LLC, AMERICAN MESSAGING (AM), INC., GALLATIN RIVER COMMUNICATIONS DBA CENTURYLINK, FRONTIER COMMUNICATIONS OF ILLINOIS, INC., STELLE TELEPHONE CO., ILLINOIS VALLEY CELLULAR RSA 2-II PARTNERSHIP, ESSEX TELCOM, INC., SBC INTERNET SERVICES, INC., FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC, OVATION COMMUNICATIONS OF ILLINOIS, INC., CIMCO COMMUNICATIONS, INC., BERGEN TELEPHONE CO.LINOIS, ILLINOIS VALLEY CELLULAR RSA 2-I PARTNERSHIP, AERO NORTH COMMUNICATIONS, INC., YMAX COMMUNICATIONS CORP., TDS METROCOM INC., DENALI SPECTRUM LICENSE, LLC, C-R TELEPHONE CO., KINSMAN MUTUAL TELEPHONE COMPANY, IOWA WIRELESS SERVICES, LP, TONICA TELEPHONE CO., FRONTIER COMMUNICATIONS OF DEPUE, INC., INDIANA PAGING NTWK, GLOBAL NAPS, INC., NEUTRAL TANDEMLINOIS, LLC, SHARON TELEPHONE CO.LINOIS, LEAF RIVER TELEPHONE CO., FRONTIER COMMUNICATIONS OF PRAIRIE, INC., MARSEILLES TELEPHONE CO. OF MARSEILLES, ANSWER AMERICA DBA ANSWER USA, MCIMETRO ACCESS TRANSMISSION SERVICES LLC, LEONORE MUTUAL TELEPHONE CO., MCNABB TELEPHONE CO., NORTH COUNTY COMMUNICATIONS CORP. - CA

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