North American Telephone Operator
North American
Telephone Operator

Telephone Area 815. Page 3.

Phone numbers of the state Illinois
Prefix: +1815
This prefix is distributed within the state Illinois
The largest city in the region is Rockford
Time Zone: Central
Winter time: UTC-6
Summer time: UTC-5
Below on the map, there is indicated the largest city in the telephone area +1-815-...-.... Illinois Rockford.

In the United States, telephone numbers are divided into a country code (+1), an area code (or prefix), which is three digits long, and a subscriber number (seven digits). These are just a few examples, and there are over 300 area codes in the United States. Each code can cover both large cities and less populated areas depending on population density and telephone network distribution.

The table below shows the main major cities and telecom operators.

If you notice any errors of any community’s location on the map, please report it via the feedback form.

Phone numbers +1-815-YYY-YYYY

Other pages: 1235678910
Company District Major City Prefix
Frontier NorthStephensonPearl City, IL+1-815443-SSSS
Ameritech IllinoisMchenryCrystal Lake, IL+1-815444-SSSS
Frontier NorthBureauSheffield, IL+1-815445-SSSS
Frontier NorthLa SalleOglesby, IL+1-815446-SSSS
Frontier Communications Of DepueBureauSpring Valley, IL+1-815447-SSSS
Ameritech IllinoisGrundyMazon, IL+1-815448-SSSS
Frontier NorthStephensonDakota, IL+1-815449-SSSS
New Cingular Wireless PCSKankakeeMomence, IL+1-815450-SSSS
New Cingular Wireless PCSMchenryWoodstock, IL+1-815451-SSSS
Frontier NorthMarshallToluca, IL+1-815452-SSSS
Frontier NorthLeeAshton, IL+1-815453-SSSS
Frontier NorthBureauSheffield, IL+1-815454-SSSS
Ameritech IllinoisMchenryCrystal Lake, IL+1-815455-SSSS
Frontier NorthLeeFranklin Grove, IL+1-815456-SSSS
Frontier Communications Of The Carolinas, IncIroquoisCissna Park, IL+1-815457-SSSS
Ameritech IllinoisWillBraidwood, IL+1-815458-SSSS
Ameritech IllinoisMchenryCrystal Lake, IL+1-815459-SSSS
Globalcom-ilWillJoliet, IL+1-815460-SSSS
Broadwing CommunicationsWillLockport, IL+1-815461-SSSS
Ameritech IllinoisWillNew Lenox, IL+1-815462-SSSS
Ameritech IllinoisWillNew Lenox, IL+1-815463-SSSS
Ameritech IllinoisWillFrankfort, IL+1-815464-SSSS
Ameritech IllinoisKankakeeGrant Park, IL+1-815465-SSSS
Ameritech IllinoisKankakeeGrant Park, IL+1-815466-SSSS
Ameritech IllinoisGrundyMinooka, IL+1-815467-SSSS
Ameritech IllinoisKankakeeManteno, IL+1-815468-SSSS
Ameritech IllinoisWillFrankfort, IL+1-815469-SSSS
Ameritech IllinoisWinnebagoRockford, IL+1-815470-SSSS
Illinois Valley Cellular Rsa 2-i PartnershipIroquoisWatseka, IL+1-815471-SSSS
Ameritech IllinoisKankakeeMomence, IL+1-815472-SSSS
Frontier Communications Of The Carolinas, IncIroquoisWatseka, IL+1-815473-SSSS
New Cingular Wireless PCSWillJoliet, IL+1-815474-SSSS
Ameritech IllinoisKendallYorkville, IL+1-815475-SSSS
Ameritech IllinoisWillWilmington, IL+1-815476-SSSS
Ameritech IllinoisMchenryCrystal Lake, IL+1-815477-SSSS
Ameritech IllinoisWillManhattan, IL+1-815478-SSSS
Ameritech IllinoisMchenryCrystal Lake, IL+1-815479-SSSS
Usa Mobility WirelessWinnebagoRockford, IL+1-815480-SSSS
Illinois Valley Cellular Rsa 2-i PartnershipCookLa Grange Park, IL+1-815481-SSSS
Nextel CommunicationsMchenryWoodstock, IL+1-815482-SSSS
Sprint Spectrum L.p.WillJoliet, IL+1-815483-SSSS
Ameritech IllinoisWinnebagoRockford, IL+1-815484-SSSS
Ameritech IllinoisWillNew Lenox, IL+1-815485-SSSS
Frontier NorthIroquoisDonovan, IL+1-815486-SSSS
Globalcom-ilWillPlainfield, IL+1-815487-SSSS
Illinois Valley Cellular Rsa 2-i PartnershipCookLa Grange Park, IL+1-815488-SSSS
Ameritech IllinoisWinnebagoRockford, IL+1-815489-SSSS
Ameritech IllinoisWinnebagoRockford, IL+1-815490-SSSS
Usa Mobility WirelessWillJoliet, IL+1-815491-SSSS
Frontier NorthJo DaviessApple River, IL+1-815492-SSSS
Citizens Telecom Co Illinois-frontier Citizens -ilCarrollLanark, IL+1-815493-SSSS
United States Cellular Corp. - IllinoisWinnebagoRockford, IL+1-815494-SSSS
Frontier NorthLa SalleLeland, IL+1-815495-SSSS
Frontier NorthLa SalleSheridan, IL+1-815496-SSSS
Frontier NorthLeeCompton, IL+1-815497-SSSS
Frontier NorthDekalbSomonauk, IL+1-815498-SSSS
United States Cellular Corp. - IllinoisWhitesideSterling, IL+1-815499-SSSS
Sprint Communications Company, L.p.Marseilles, IL+1-815500-SSSS
Sprint Spectrum L.p.DekalbDekalb, IL+1-815501-SSSS
Globalcom-ilMchenryWoodstock, IL+1-815502-SSSS
Sprint Spectrum L.p.La SalleMendota, IL+1-815503-SSSS
Globalcom-ilGrundyGardner, IL+1-815504-SSSS
T-mobile UsaWinnebagoRockford, IL+1-815505-SSSS
Level 3 CommunicationsMchenryUnion, IL+1-815506-SSSS
Level 3 CommunicationsKankakeeMomence, IL+1-815507-SSSS
New Cingular Wireless PCSDekalbDekalb, IL+1-815508-SSSS
Nextel CommunicationsWinnebagoRockford, IL+1-815509-SSSS
Mediacom Telephony Of IllinoisWillStreator, IL+1-815510-SSSS
Globalcom-ilWillLockport, IL+1-815512-SSSS
Level 3 CommunicationsGrundyMorris, IL+1-815513-SSSS
Nextel CommunicationsWillJoliet, IL+1-815514-SSSS
Level 3 CommunicationsIroquoisWatseka, IL+1-815515-SSSS
Nextel CommunicationsWinnebagoRockford, IL+1-815516-SSSS
Mci Worldcom CommunicationsDekalbDekalb, IL+1-815517-SSSS
Globalcom-ilGrundyCoal City, IL+1-815518-SSSS
Sprint Spectrum L.p.WinnebagoRockford, IL+1-815519-SSSS
Cellco Partnership DBA Verizon WirelessWinnebagoRockford, IL+1-815520-SSSS
Ameritech IllinoisGrundyMinooka, IL+1-815521-SSSS
Frontier NorthDekalbKirkland, IL+1-815522-SSSS
Teleport Communications Group - ChicagoKankakeeKankakee, IL+1-815523-SSSS

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