North American Telephone Operator
North American
Telephone Operator

Telephone Area 815. Page 7.

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: 1234567910
Company District Major City Prefix
Ameritech IllinoisWillJoliet, IL+1-815768-SSSS
Broadwing CommunicationsLa SalleSeneca, IL+1-815769-SSSS
Charter Fiberlink - IllinoisHarvard, IL+1-815770-SSSS
Rcn Telecom Services Of IllinoisIroquoisAshkum, IL+1-815771-SSSS
Citizens Telecom Co Illinois-frontier Citizens -ilWhitesideMorrison, IL+1-815772-SSSS
Ameritech IllinoisWillJoliet, IL+1-815773-SSSS
Ameritech IllinoisWillJoliet, IL+1-815774-SSSS
Usa Mobility WirelessMchenryWoodstock, IL+1-815775-SSSS
Ameritech IllinoisJo DaviessGalena, IL+1-815776-SSSS
Ameritech IllinoisJo DaviessGalena, IL+1-815777-SSSS
Citizens Telecom Co Illinois-frontier Citizens -ilWhitesideLyndon, IL+1-815778-SSSS
Broadwing CommunicationsLa SalleLa Salle, IL+1-815780-SSSS
Rcn Telecom Services Of IllinoisIroquoisChebanse, IL+1-815781-SSSS
Broadwing CommunicationsWillPlainfield, IL+1-815782-SSSS
Rcn Telecom Services Of IllinoisIroquoisGilman, IL+1-815783-SSSS
Frontier NorthDekalbGenoa, IL+1-815784-SSSS
Rcn Telecom Services Of IllinoisIroquoisWatseka, IL+1-815785-SSSS
Frontier NorthDekalbSandwich, IL+1-815786-SSSS
Frontier NorthDekalbDekalb, IL+1-815787-SSSS
Ameritech IllinoisMchenryCrystal Lake, IL+1-815788-SSSS
Frontier NorthStephensonOrangeville, IL+1-815789-SSSS
Nextel CommunicationsMchenryWoodstock, IL+1-815790-SSSS
Nextel CommunicationsWillJoliet, IL+1-815791-SSSS
Ameritech IllinoisLa SalleHarding, IL+1-815792-SSSS
T-mobile UsaDekalbDekalb, IL+1-815793-SSSS
Marseilles Telephone Co. Of MarseillesLa SalleMarseilles, IL+1-815794-SSSS
Marseilles Telephone Co. Of MarseillesLa SalleMarseilles, IL+1-815795-SSSS
Frontier Communications Of PrairieLivingstonFlanagan, IL+1-815796-SSSS
Level 3 CommunicationsDekalbSomonauk, IL+1-815797-SSSS
Essex TelcomCarrollMilledgeville, IL+1-815798-SSSS
Sprint Communications Company, L.p.WhitesideSterling, IL+1-815799-SSSS
Mediacom Telephony Of IllinoisPoplar Grove, IL+1-815800-SSSS
Aero North CommunicationsStephensonFreeport, IL+1-815801-SSSS
Ameritech IllinoisKankakeeKankakee, IL+1-815802-SSSS
Aero North CommunicationsOgleByron, IL+1-815803-SSSS
Aero North CommunicationsWinnebagoPecatonica, IL+1-815804-SSSS
Aero North CommunicationsWinnebagoDurand, IL+1-815805-SSSS
Ameritech IllinoisWillFrankfort, IL+1-815806-SSSS
Aero North CommunicationsStephensonGerman Valley, IL+1-815807-SSSS
Aero North CommunicationsStephensonWinslow, IL+1-815808-SSSS
Aero North CommunicationsStephensonLena, IL+1-815809-SSSS
Aero North CommunicationsStephensonPearl City, IL+1-815810-SSSS
Aero North CommunicationsStephensonDakota, IL+1-815812-SSSS
Aero North CommunicationsJo DaviessApple River, IL+1-815813-SSSS
T-mobile UsaMchenryWoodstock, IL+1-815814-SSSS
Aero North CommunicationsStephensonDakota, IL+1-815816-SSSS
Aero North CommunicationsJo DaviessHanover, IL+1-815817-SSSS
Aero North CommunicationsJo DaviessWarren, IL+1-815818-SSSS
Aero North CommunicationsStephensonOrangeville, IL+1-815819-SSSS
Aero North CommunicationsJo DaviessElizabeth, IL+1-815820-SSSS
United States Cellular Corp. - IllinoisStephensonFreeport, IL+1-815821-SSSS
New Cingular Wireless PCSLa SalleStreator, IL+1-815822-SSSS
Xo IllinoisWillJoliet, IL+1-815823-SSSS
Frontier NorthDekalbShabbona, IL+1-815824-SSSS
Frontier NorthDekalbMalta, IL+1-815825-SSSS
Cellco Partnership DBA Verizon WirelessDekalbSomonauk, IL+1-815826-SSSS
Frontier NorthKaneMaple Park, IL+1-815827-SSSS
Xo IllinoisGrundyMinooka, IL+1-815828-SSSS
Essex TelcomCarrollChadwick, IL+1-815829-SSSS
New Cingular Wireless PCSLa SalleOglesby, IL+1-815830-SSSS
Aero North CommunicationsStephensonDavis, IL+1-815831-SSSS
Frontier Communications Of IllinoisLivingstonSaunemin, IL+1-815832-SSSS
Aero North CommunicationsStephensonMc Connell, IL+1-815833-SSSS
Ameritech IllinoisWillLockport, IL+1-815834-SSSS
Essex TelcomLeeDixon, IL+1-815835-SSSS
Ameritech IllinoisWillLockport, IL+1-815836-SSSS
Aero North CommunicationsOgleForreston, IL+1-815837-SSSS
Ameritech IllinoisWillLockport, IL+1-815838-SSSS
Xo IllinoisKankakeeKankakee, IL+1-815839-SSSS
Aero North CommunicationsJo DaviessStockton, IL+1-815840-SSSS
Essex TelcomOgleMt Morris, IL+1-815841-SSSS
Frontier NorthLivingstonPontiac, IL+1-815842-SSSS
Essex TelcomLeeAshton, IL+1-815843-SSSS
Frontier NorthLivingstonPontiac, IL+1-815844-SSSS
Frontier NorthJo DaviessScales Mound, IL+1-815845-SSSS
Broadwing CommunicationsWillJoliet, IL+1-815846-SSSS
Sbc Internet ServicesWinnebagoRockford, IL+1-815847-SSSS
Illinois Valley Cellular Rsa 2-i PartnershipLivingstonPontiac, IL+1-815848-SSSS
Frontier NorthLeeSublette, IL+1-815849-SSSS
Aero North CommunicationsWinnebagoPecatonica, IL+1-815850-SSSS

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