Telephone Area 815. Page 1.
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.
Phone numbers +1-815-YYY-YYYY
Company | District | Major City | Prefix |
---|---|---|---|
United States Cellular Corp. - Illinois | Jo Daviess | Galena, IL | +1-815281-SSSS |
Ameritech Illinois | Winnebago | Loves Park, IL | +1-815282-SSSS |
Mediacom Telephony Of Illinois | Will | Dekalb, IL | +1-815283-SSSS |
Gallatin River Communications DBA Centurylink | Lee | Dixon, IL | +1-815284-SSSS |
Gallatin River Communications DBA Centurylink | Lee | Dixon, IL | +1-815285-SSSS |
Frontier North | Dekalb | Hinckley, IL | +1-815286-SSSS |
Ameritech Illinois | Grundy | Verona, IL | +1-815287-SSSS |
Gallatin River Communications DBA Centurylink | Lee | Dixon, IL | +1-815288-SSSS |
United States Cellular Corp. - Illinois | Winnebago | Rockford, IL | +1-815289-SSSS |
Sbc Internet Services | Minooka, IL | +1-815290-SSSS | |
United States Cellular Corp. - Illinois | Stephenson | Freeport, IL | +1-815291-SSSS |
Bergen Telephone Co. - Illinois | Boone | South Beloit, IL | +1-815292-SSSS |
Ameritech Illinois | Will | Romeoville, IL | +1-815293-SSSS |
Usa Mobility Wireless | Cook | La Grange Park, IL | +1-815294-SSSS |
T-mobile Usa | Kankakee | Kankakee, IL | +1-815295-SSSS |
Usa Mobility Wireless | Winnebago | Rockford, IL | +1-815296-SSSS |
Frontier North | Stephenson | Freeport, IL | +1-815297-SSSS |
Cellco Partnership DBA Verizon Wireless | Winnebago | Rockford, IL | +1-815298-SSSS |
United States Cellular Corp. - Illinois | Winnebago | Rockford, IL | +1-815299-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-815300-SSSS |
Broadwing Communications | Mchenry | Crystal Lake, IL | +1-815301-SSSS |
Sprint Spectrum L.p. | Will | Joliet, IL | +1-815302-SSSS |
Illinois Valley Cellular Rsa 2-i Partnership | Bureau | Princeton, IL | +1-815303-SSSS |
Broadwing Communications | Kankakee | Kankakee, IL | +1-815304-SSSS |
Broadwing Communications | Grundy | Gardner, IL | +1-815305-SSSS |
Broadwing Communications | Will | Lockport, IL | +1-815306-SSSS |
Broadwing Communications | Mchenry | Mchenry, IL | +1-815307-SSSS |
Broadwing Communications | Mchenry | Woodstock, IL | +1-815308-SSSS |
Aero North Communications | Shannon, IL | +1-815309-SSSS | |
Broadwing Communications | La Salle | Utica, IL | +1-815310-SSSS |
Ymax Communications Corp. | Rockford, IL | +1-815312-SSSS | |
Broadwing Communications | La Salle | Ottawa, IL | +1-815313-SSSS |
Broadwing Communications | Will | Manhattan, IL | +1-815314-SSSS |
Level 3 Communications | Winnebago | Rockford, IL | +1-815315-SSSS |
Tds Metrocom Inc.-il | Winnebago | Rockford, IL | +1-815316-SSSS |
Broadwing Communications | Iroquois | Crescent City, IL | +1-815317-SSSS |
Broadwing Communications | Grundy | Morris, IL | +1-815318-SSSS |
United States Cellular Corp. - Illinois | Winnebago | Rockford, IL | +1-815319-SSSS |
Peerless Network Of Illinois | Kankakee | Kankakee, IL | +1-815320-SSSS |
Xo Illinois | Mchenry | Woodstock, IL | +1-815321-SSSS |
Level 3 Communications | Mchenry | Mchenry, IL | +1-815322-SSSS |
Level 3 Communications | Boone | Belvidere, IL | +1-815323-SSSS |
Mediacom Telephony Of Illinois | Will | Ottawa, IL | +1-815324-SSSS |
New Cingular Wireless PCS | Will | Joliet, IL | +1-815325-SSSS |
New Cingular Wireless PCS | La Salle | Oglesby, IL | +1-815326-SSSS |
Broadwing Communications | Will | Plainfield, IL | +1-815327-SSSS |
Broadwing Communications | Will | Lockport, IL | +1-815328-SSSS |
Usa Mobility Wireless | La Salle | La Salle, IL | +1-815329-SSSS |
Globalcom-il | Iroquois | Crescent City, IL | +1-815330-SSSS |
Broadwing Communications | Mchenry | Mchenry, IL | +1-815331-SSSS |
Frontier North | Winnebago | Cherry Valley, IL | +1-815332-SSSS |
Broadwing Communications | Mchenry | Woodstock, IL | +1-815333-SSSS |
Ameritech Illinois | Mchenry | Woodstock, IL | +1-815334-SSSS |
Frontier North | Winnebago | Winnebago, IL | +1-815335-SSSS |
Citizens Telecom Co Illinois-frontier Citizens -il | Carroll | Milledgeville, IL | +1-815336-SSSS |
Ameritech Illinois | Mchenry | Woodstock, IL | +1-815337-SSSS |
Ameritech Illinois | Mchenry | Woodstock, IL | +1-815338-SSSS |
Frontier North | Putnam | Granville, IL | +1-815339-SSSS |
Comcast Phone Of Illinois DBA Comco | La Moille, IL | +1-815340-SSSS | |
New Cingular Wireless PCS | Will | Joliet, IL | +1-815341-SSSS |
New Cingular Wireless PCS | Will | Joliet, IL | +1-815342-SSSS |
New Cingular Wireless PCS | La Salle | Oglesby, IL | +1-815343-SSSS |
Ameritech Illinois | Mchenry | Mchenry, IL | +1-815344-SSSS |
Level 3 Communications | Mchenry | Woodstock, IL | +1-815345-SSSS |
Broadwing Communications | Grundy | Gardner, IL | +1-815346-SSSS |
Cellco Partnership DBA Verizon Wireless | Mchenry | Woodstock, IL | +1-815347-SSSS |
Us Xchange Of Illinois LLC DBA Choice One Comm Il | Will | Kankakee, IL | +1-815348-SSSS |
Xo Illinois | Mchenry | Mchenry, IL | +1-815349-SSSS |
Essex Telcom | Lee | Franklin Grove, IL | +1-815350-SSSS |
Cellco Partnership DBA Verizon Wireless | Kankakee | Kankakee, IL | +1-815351-SSSS |
Broadwing Communications | Kankakee | Kankakee, IL | +1-815352-SSSS |
Cellco Partnership DBA Verizon Wireless | Mchenry | Woodstock, IL | +1-815353-SSSS |
Cellco Partnership DBA Verizon Wireless | Mchenry | Woodstock, IL | +1-815354-SSSS |
Cellco Partnership DBA Verizon Wireless | Mchenry | Woodstock, IL | +1-815355-SSSS |
Ameritech Illinois | Mchenry | Crystal Lake, IL | +1-815356-SSSS |
Ameritech Illinois | La Salle | Seneca, IL | +1-815357-SSSS |
C-r Telephone Co. | Livingston | Cornell, IL | +1-815358-SSSS |
Gallatin River Communications DBA Centurylink | Lee | Harmon, IL | +1-815359-SSSS |
Essex Telcom | Lee | Sublette, IL | +1-815360-SSSS |
Broadwing Communications | Will | Manhattan, IL | +1-815361-SSSS |