Telephone Area +1 (815) XXX-XXXX / Page 9
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) XXX-XXXX
| Company | District | Major City | Prefix |
|---|---|---|---|
| Ameritech Illinois | Kankakee | Kankakee, IL | +1 (815) 932-XXXX |
| Ameritech Illinois | Kankakee | Kankakee, IL | +1 (815) 933-XXXX |
| Frontier North | Livingston | Emington, IL | +1 (815) 934-XXXX |
| Ameritech Illinois | Kankakee | Kankakee, IL | +1 (815) 935-XXXX |
| Ameritech Illinois | Kankakee | Kankakee, IL | +1 (815) 936-XXXX |
| Ameritech Illinois | Kankakee | Kankakee, IL | +1 (815) 937-XXXX |
| Frontier North | Ogle | Forreston, IL | +1 (815) 938-XXXX |
| Ameritech Illinois | Kankakee | Kankakee, IL | +1 (815) 939-XXXX |
| Level 3 Communications | Grundy | Gardner, IL | +1 (815) 940-XXXX |
| Ameritech Illinois | Grundy | Morris, IL | +1 (815) 941-XXXX |
| Ameritech Illinois | Grundy | Morris, IL | +1 (815) 942-XXXX |
| Ameritech Illinois | Mchenry | Harvard, IL | +1 (815) 943-XXXX |
| Ameritech Illinois | Kankakee | Saint Anne, IL | +1 (815) 944-XXXX |
| Frontier North | Mclean | Chenoa, IL | +1 (815) 945-XXXX |
| Citizens Telecom Co Illinois-frontier Citizens -il | Ogle | Polo, IL | +1 (815) 946-XXXX |
| Frontier North | Jo Daviess | Stockton, IL | +1 (815) 947-XXXX |
| Citizens Telecom Co Illinois-frontier Citizens -il | Whiteside | Prophetstown, IL | +1 (815) 948-XXXX |
| Frontier North | Ford | Cabery, IL | +1 (815) 949-XXXX |
| Essex Telcom | Lee | Amboy, IL | +1 (815) 951-XXXX |
| Aero North Communications | Lanark, IL | +1 (815) 952-XXXX | |
| Cellco Partnership DBA Verizon Wireless | Kankakee | Kankakee, IL | +1 (815) 953-XXXX |
| Cellco Partnership DBA Verizon Wireless | Kankakee | Kankakee, IL | +1 (815) 954-XXXX |
| Nextel Communications | Will | Joliet, IL | +1 (815) 955-XXXX |
| Sprint Communications Company, L.p. | Whiteside | Morrison, IL | +1 (815) 956-XXXX |
| Level 3 Communications | Winnebago | Rockton, IL | +1 (815) 957-XXXX |
| North County Communications Corp. - CA | Ogle | Leaf River, IL | +1 (815) 960-XXXX |
| Ameritech Illinois | Winnebago | Rockford, IL | +1 (815) 961-XXXX |
| Ameritech Illinois | Winnebago | Rockford, IL | +1 (815) 962-XXXX |
| Ameritech Illinois | Winnebago | Rockford, IL | +1 (815) 963-XXXX |
| Ameritech Illinois | Winnebago | Rockford, IL | +1 (815) 964-XXXX |
| Ameritech Illinois | Winnebago | Rockford, IL | +1 (815) 965-XXXX |
| Ameritech Illinois | Winnebago | Rockford, IL | +1 (815) 966-XXXX |
| Ameritech Illinois | Winnebago | Rockford, IL | +1 (815) 967-XXXX |
| Ameritech Illinois | Winnebago | Rockford, IL | +1 (815) 968-XXXX |
| Ameritech Illinois | Winnebago | Rockford, IL | +1 (815) 969-XXXX |
| Nextel Communications | Dekalb | Sycamore, IL | +1 (815) 970-XXXX |
| Ameritech Illinois | Winnebago | Rockford, IL | +1 (815) 971-XXXX |
| Ameritech Illinois | Winnebago | Rockford, IL | +1 (815) 972-XXXX |
| United States Cellular Corp. - Illinois | Lee | Dixon, IL | +1 (815) 973-XXXX |
| Essex Telcom | Whiteside | Tampico, IL | +1 (815) 974-XXXX |
| New Cingular Wireless PCS | Boone | Belvidere, IL | +1 (815) 975-XXXX |
| Mci Worldcom Communications | Winnebago | Rockford, IL | +1 (815) 977-XXXX |
| Cellco Partnership DBA Verizon Wireless | Winnebago | Rockford, IL | +1 (815) 978-XXXX |
| Cellco Partnership DBA Verizon Wireless | Winnebago | Rockford, IL | +1 (815) 979-XXXX |
| Cellco Partnership DBA Verizon Wireless | Rockford, IL | +1 (815) 980-XXXX | |
| Level 3 Communications | La Salle | Ottawa, IL | +1 (815) 981-XXXX |
| Essex Telcom | Whiteside | Tampico, IL | +1 (815) 982-XXXX |
| American Messaging (am) | Winnebago | Rockford, IL | +1 (815) 983-XXXX |
| Frontier Communications Of The Carolinas, Inc | Iroquois | Wellington, IL | +1 (815) 984-XXXX |
| Cellco Partnership DBA Verizon Wireless | Winnebago | Rockford, IL | +1 (815) 985-XXXX |
| Us Xchange Of Illinois LLC DBA Choice One Comm Il | Winnebago | Rockford, IL | +1 (815) 986-XXXX |
| Ameritech Illinois | Winnebago | Rockford, IL | +1 (815) 987-XXXX |
| United States Cellular Corp. - Illinois | Winnebago | Rockford, IL | +1 (815) 988-XXXX |
| Sprint Communications Company, L.p. | Whiteside | Prophetstown, IL | +1 (815) 989-XXXX |
| Cellco Partnership DBA Verizon Wireless | Stephenson | Freeport, IL | +1 (815) 990-XXXX |
| Essex Telcom | Dekalb | Sycamore, IL | +1 (815) 991-XXXX |
| Nextel Communications | La Salle | Streator, IL | +1 (815) 992-XXXX |
| New Cingular Wireless PCS | Oglesby, IL | +1 (815) 993-XXXX | |
| Nextel Communications | Lee | Dixon, IL | +1 (815) 994-XXXX |
| Teleport Communications Group - Chicago | Dekalb, IL | +1 (815) 995-XXXX | |
| Nextel Communications | Savanna, IL | +1 (815) 996-XXXX | |
| Mcleodusa Telecommunications Services- Il | Winnebago | Rockford, IL | +1 (815) 997-XXXX |
| Frontier North | Livingston | Odell, IL | +1 (815) 998-XXXX |
| United States Cellular Corp. - Illinois | Will | Joliet, IL | +1 (815) 999-XXXX |
