North American Telephone Operator
North American
Telephone Operator

Telephone Area 815. Page 6.

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: 1234568910
Company District Major City Prefix
Frontier NorthFordPiper City, IL+1-815686-SSSS
Rcn Telecom Services Of IllinoisMchenryWoodstock, IL+1-815687-SSSS
Frontier NorthLivingstonStrawn, IL+1-815688-SSSS
Frontier Communications Of IllinoisLivingstonCullom, IL+1-815689-SSSS
United States Cellular Corp. - IllinoisWillJoliet, IL+1-815690-SSSS
Rcn Telecom Services Of IllinoisLa SalleUtica, IL+1-815691-SSSS
Frontier NorthLivingstonFairbury, IL+1-815692-SSSS
Nextel CommunicationsWillJoliet, IL+1-815693-SSSS
Frontier NorthIroquoisClifton, IL+1-815694-SSSS
Ameritech IllinoisKendallNewark, IL+1-815695-SSSS
Aero North CommunicationsWinnebagoRoscoe, IL+1-815696-SSSS
Frontier NorthIroquoisChebanse, IL+1-815697-SSSS
Frontier NorthIroquoisAshkum, IL+1-815698-SSSS
Frontier NorthBureauWyanet, IL+1-815699-SSSS
Level 3 CommunicationsMchenryWoodstock, IL+1-815701-SSSS
Sprint Communications Company, L.p.LivingstonSaunemin, IL+1-815702-SSSS
Nextel CommunicationsWinnebagoRockford, IL+1-815703-SSSS
Mcleodusa Telecommunications Services- IlWinnebagoBeloit, IL+1-815704-SSSS
Teleport Communications Group - ChicagoGrundyMorris, IL+1-815705-SSSS
Essex TelcomWhitesideLyndon, IL+1-815706-SSSS
Level 3 CommunicationsIroquoisGilman, IL+1-815707-SSSS
Comcast Phone Of Illinois DBA ComcoRockford, IL+1-815708-SSSS
Level 3 CommunicationsGrundyCoal City, IL+1-815709-SSSS
AT&T LocalGrundyMorris, IL+1-815710-SSSS
Nextel CommunicationsMchenryHarvard, IL+1-815712-SSSS
New Cingular Wireless PCSWinnebagoRockford, IL+1-815713-SSSS
Sprint Communications Company, L.p.WillJoliet, IL+1-815714-SSSS
New Cingular Wireless PCSWillJoliet, IL+1-815715-SSSS
Nextel CommunicationsWhitesideSterling, IL+1-815716-SSSS
Broadwing CommunicationsWillNew Lenox, IL+1-815717-SSSS
United States Cellular Corp. - IllinoisWhitesideSterling, IL+1-815718-SSSS
Nextel CommunicationsBureauPrinceton, IL+1-815719-SSSS
Ameritech IllinoisWinnebagoRockford, IL+1-815720-SSSS
AT&T LocalWinnebagoRockford, IL+1-815721-SSSS
Ameritech IllinoisWillJoliet, IL+1-815722-SSSS
Ameritech IllinoisWillJoliet, IL+1-815723-SSSS
Ameritech IllinoisWillJoliet, IL+1-815724-SSSS
Ameritech IllinoisWillJoliet, IL+1-815725-SSSS
Ameritech IllinoisWillJoliet, IL+1-815726-SSSS
Ameritech IllinoisWillJoliet, IL+1-815727-SSSS
Frontier NorthMchenryWonder Lake, IL+1-815728-SSSS
Ameritech IllinoisWillJoliet, IL+1-815729-SSSS
Ameritech IllinoisWillJoliet, IL+1-815730-SSSS
Ameritech IllinoisPlainfield, IL+1-815731-SSSS
Frontier NorthOgleOregon, IL+1-815732-SSSS
Rcn Telecom Services Of IllinoisWillPlainfield, IL+1-815733-SSSS
Frontier NorthOgleMt Morris, IL+1-815734-SSSS
New Cingular Wireless PCSWillJoliet, IL+1-815735-SSSS
Ameritech IllinoisKendallLisbon, IL+1-815736-SSSS
Sharon Telephone Co. - IllinoisBooneCapron, IL+1-815737-SSSS
Leaf River Telephone Co.OgleLeaf River, IL+1-815738-SSSS
Nextel CommunicationsDekalbSycamore, IL+1-815739-SSSS
Ameritech IllinoisWillJoliet, IL+1-815740-SSSS
Ameritech IllinoisWillJoliet, IL+1-815741-SSSS
United States Cellular Corp. - IllinoisWinnebagoRockford, IL+1-815742-SSSS
Frontier Communications Of PrairieLivingstonGraymont, IL+1-815743-SSSS
Ameritech IllinoisWillJoliet, IL+1-815744-SSSS
Frontier NorthJo DaviessWarren, IL+1-815745-SSSS
Marseilles Telephone Co. Of MarseillesDekalbMarseilles, IL+1-815746-SSSS
Citizens Telecom Co Illinois-frontier Citizens -ilJo DaviessEast Dubuque, IL+1-815747-SSSS
Frontier NorthDekalbDekalb, IL+1-815748-SSSS
Answer America DBA Answer UsaWinnebagoRockford, IL+1-815749-SSSS
Marseilles Telephone Co. Of MarseillesLa SalleMarseilles, IL+1-815750-SSSS
Cellco Partnership DBA Verizon WirelessDekalbDekalb, IL+1-815751-SSSS
Frontier NorthDekalbDekalb, IL+1-815752-SSSS
Frontier NorthDekalbDekalb, IL+1-815753-SSSS
Frontier NorthDekalbDekalb, IL+1-815754-SSSS
American Messaging (am)DekalbDekalb, IL+1-815755-SSSS
Frontier NorthDekalbDekalb, IL+1-815756-SSSS
United States Cellular Corp. - IllinoisDekalbDekalb, IL+1-815757-SSSS
Frontier NorthDekalbDekalb, IL+1-815758-SSSS
Ameritech IllinoisMchenryMchenry, IL+1-815759-SSSS
Cellco Partnership DBA Verizon WirelessPutnamHennepin, IL+1-815760-SSSS
Cellco Partnership DBA Verizon WirelessDekalbDekalb, IL+1-815761-SSSS
Cellco Partnership DBA Verizon WirelessDekalbDekalb, IL+1-815762-SSSS
Answer America DBA Answer UsaWinnebagoRockford, IL+1-815763-SSSS
United States Cellular Corp. - IllinoisDekalbDekalb, IL+1-815764-SSSS
Frontier NorthBoonePoplar Grove, IL+1-815765-SSSS
United States Cellular Corp. - IllinoisDekalbDekalb, IL+1-815766-SSSS
American Messaging (am)CookLa Grange Park, IL+1-815767-SSSS

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