Telephone Area +1 (815) XXX-XXXX / Page 8
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 |
|---|---|---|---|
| Usa Mobility Wireless | Kankakee | Kankakee, IL | +1 (815) 851-XXXX |
| Aero North Communications | Jo Daviess | Scales Mound, IL | +1 (815) 852-XXXX |
| Frontier North | Marshall | Wenona, IL | +1 (815) 853-XXXX |
| Frontier North | Livingston | Long Point, IL | +1 (815) 854-XXXX |
| Sprint Communications Company, L.p. | Milledgeville, IL | +1 (815) 855-XXXX | |
| Leonore Mutual Telephone Co. | La Salle | Tonica, IL | +1 (815) 856-XXXX |
| Frontier North | Lee | Amboy, IL | +1 (815) 857-XXXX |
| Frontier North | Jo Daviess | Elizabeth, IL | +1 (815) 858-XXXX |
| Essex Telcom | Whiteside | Rock Falls, IL | +1 (815) 859-XXXX |
| Teleport Communications Group - Chicago | Winnebago | Elwood, IL | +1 (815) 860-XXXX |
| New Cingular Wireless PCS | Mchenry | Woodstock, IL | +1 (815) 861-XXXX |
| Charter Fiberlink - Illinois | Dekalb | Harvard, IL | +1 (815) 862-XXXX |
| Frontier North | La Salle | Rutland, IL | +1 (815) 863-XXXX |
| Citizens Telecom Co Illinois-frontier Citizens -il | Carroll | Shannon, IL | +1 (815) 864-XXXX |
| Frontier North | Stephenson | Davis, IL | +1 (815) 865-XXXX |
| Illinois Valley Cellular Rsa 2-i Partnership | Bureau | Princeton, IL | +1 (815) 866-XXXX |
| Nextel Communications | Livingston | Pontiac, IL | +1 (815) 867-XXXX |
| Frontier North | Stephenson | Mc Connell, IL | +1 (815) 868-XXXX |
| Frontier North | Putnam | Magnolia, IL | +1 (815) 869-XXXX |
| Usa Mobility Wireless | Winnebago | Rockford, IL | +1 (815) 870-XXXX |
| United States Cellular Corp. - Illinois | Winnebago | Rockford, IL | +1 (815) 871-XXXX |
| Frontier North | Bureau | Princeton, IL | +1 (815) 872-XXXX |
| Frontier North | Winnebago | New Milford, IL | +1 (815) 873-XXXX |
| Frontier North | Winnebago | New Milford, IL | +1 (815) 874-XXXX |
| Frontier North | Bureau | Princeton, IL | +1 (815) 875-XXXX |
| Frontier North | Bureau | Princeton, IL | +1 (815) 876-XXXX |
| Ameritech Illinois | Winnebago | Loves Park, IL | +1 (815) 877-XXXX |
| New Cingular Wireless PCS | Bureau | Princeton, IL | +1 (815) 878-XXXX |
| Frontier North | Bureau | Princeton, IL | +1 (815) 879-XXXX |
| Xo Illinois | Mchenry | Woodstock, IL | +1 (815) 880-XXXX |
| Essex Telcom | Ogle | Oregon, IL | +1 (815) 881-XXXX |
| Mcnabb Telephone Co. | Putnam | Mc Nabb, IL | +1 (815) 882-XXXX |
| Ameritech Illinois | La Salle | Oglesby, IL | +1 (815) 883-XXXX |
| Mediacom Telephony Of Illinois | Mchenry | Harvard, IL | +1 (815) 884-XXXX |
| Frontier North | Boone | Caledonia, IL | +1 (815) 885-XXXX |
| Ameritech Illinois | Will | Romeoville, IL | +1 (815) 886-XXXX |
| Teleport Communications Group - Chicago | Mchenry | Harvard, IL | +1 (815) 887-XXXX |
| Level 3 Communications | Rochelle, IL | +1 (815) 888-XXXX | |
| Frontier Communications Of The Carolinas, Inc | Iroquois | Milford, IL | +1 (815) 889-XXXX |
| Aero North Communications | Winnebago | New Milford, IL | +1 (815) 890-XXXX |
| Aero North Communications | Winnebago | Winnebago, IL | +1 (815) 891-XXXX |
| Essex Telcom | Carroll | Shannon, IL | +1 (815) 892-XXXX |
| Comcast Phone Of Illinois DBA Comco | Mchenry | Crystal Lake, IL | +1 (815) 893-XXXX |
| Frontier North | Bureau | Ladd, IL | +1 (815) 894-XXXX |
| Frontier North | Dekalb | Sycamore, IL | +1 (815) 895-XXXX |
| Aero North Communications | Winnebago | Durand, IL | +1 (815) 896-XXXX |
| Sprint Communications Company, L.p. | Whiteside | Lyndon, IL | +1 (815) 897-XXXX |
| Aero North Communications | Jo Daviess | Elizabeth, IL | +1 (815) 898-XXXX |
| Frontier North | Dekalb | Sycamore, IL | +1 (815) 899-XXXX |
| Denali Spectrum License | Amboy, IL | +1 (815) 900-XXXX | |
| Comcast Phone Of Illinois DBA Comco | Dekalb | Dekalb, IL | +1 (815) 901-XXXX |
| Sprint Communications Company, L.p. | Whiteside | Lyndon, IL | +1 (815) 902-XXXX |
| American Messaging (am) | Mchenry | Mchenry, IL | +1 (815) 903-XXXX |
| New Cingular Wireless PCS | Rockford, IL | +1 (815) 904-XXXX | |
| Level 3 Communications | Will | Lockport, IL | +1 (815) 905-XXXX |
| Sprint Communications Company, L.p. | Mt Carroll, IL | +1 (815) 906-XXXX | |
| Broadwing Communications | Kankakee | Manteno, IL | +1 (815) 907-XXXX |
| Sprint Communications Company, L.p. | Stephenson | Freeport, IL | +1 (815) 908-XXXX |
| Sprint Communications Company, L.p. | Dekalb | Dekalb, IL | +1 (815) 909-XXXX |
| Illinois Valley Cellular Rsa 2-i Partnership | La Salle | Mendota, IL | +1 (815) 910-XXXX |
| Aero North Communications | Boone | Belvidere, IL | +1 (815) 912-XXXX |
| Sprint Communications Company, L.p. | Will | Joliet, IL | +1 (815) 913-XXXX |
| Sprint Spectrum L.p. | Winnebago | Rockford, IL | +1 (815) 914-XXXX |
| Level 3 Communications | Grundy | Coal City, IL | +1 (815) 915-XXXX |
| Nextel Communications | Grundy | Minooka, IL | +1 (815) 916-XXXX |
| Essex Telcom | Ogle | Rochelle, IL | +1 (815) 917-XXXX |
| Level 3 Communications | Iroquois | Clifton, IL | +1 (815) 918-XXXX |
| T-mobile Usa | Will | Joliet, IL | +1 (815) 919-XXXX |
| Sprint Communications Company, L.p. | Livingston | Cornell, IL | +1 (815) 920-XXXX |
| Ameritech Illinois | Winnebago | Rockford, IL | +1 (815) 921-XXXX |
| Cellco Partnership DBA Verizon Wireless | Kankakee | Kankakee, IL | +1 (815) 922-XXXX |
| Ameritech Illinois | Mchenry | Union, IL | +1 (815) 923-XXXX |
| Essex Telcom | Whiteside | Prophetstown, IL | +1 (815) 924-XXXX |
| Frontier North | Putnam | Hennepin, IL | +1 (815) 925-XXXX |
| Broadwing Communications | Will | Wilmington, IL | +1 (815) 926-XXXX |
| Broadwing Communications | Will | Joliet, IL | +1 (815) 927-XXXX |
| Ameritech Illinois | Kankakee | Kankakee, IL | +1 (815) 928-XXXX |
| Ameritech Illinois | Kankakee | Kankakee, IL | +1 (815) 929-XXXX |
| Sprint Communications Company, L.p. | Jo Daviess | Elizabeth, IL | +1 (815) 930-XXXX |
| New Cingular Wireless PCS | Will | Joliet, IL | +1 (815) 931-XXXX |
