Active Prefixes in Area Code 815
| Prefix | Primary City | Phone Type | Company |
|---|---|---|---|
| 815-352-#### | Kankakee | Landline Numbers | Broadwing Communicat... |
| 815-353-#### | Woodstock | Wireless Numbers | Cellco Partnership D... |
| 815-354-#### | Woodstock | Wireless Numbers | Cellco Partnership D... |
| 815-355-#### | Woodstock | Wireless Numbers | Cellco Partnership D... |
| 815-356-#### | Crystal Lake | Landline Numbers | Ameritech Illinois... |
| 815-357-#### | Seneca | Landline Numbers | Ameritech Illinois... |
| 815-358-#### | Cornell | Landline Numbers | C-r Telephone Co.... |
| 815-359-#### | Harmon | Landline Numbers | Gallatin River Commu... |
| 815-360-#### | Sublette | Landline Numbers | Essex Telcom, Inc.... |
| 815-361-#### | Manhattan | Landline Numbers | Broadwing Communicat... |
| 815-362-#### | German Valley | Landline Numbers | Frontier North, Inc.... |
| 815-363-#### | McHenry | Landline Numbers | Ameritech Illinois... |
| 815-364-#### | Morris | Landline Numbers | Broadwing Communicat... |
| 815-365-#### | Reddick | Landline Numbers | Frontier North, Inc.... |
| 815-366-#### | Ottawa | Landline Numbers | Broadwing Communicat... |
| 815-367-#### | Winslow | Landline Numbers | Frontier North, Inc.... |
| 815-368-#### | Lostant | Landline Numbers | Frontier North, Inc.... |
| 815-369-#### | Lena | Landline Numbers | Frontier North, Inc.... |
| 815-370-#### | Kankakee | Wireless Numbers | Cellco Partnership D... |
| 815-371-#### | Utica | Landline Numbers | Broadwing Communicat... |
| 815-372-#### | Romeoville | Landline Numbers | Ameritech Illinois... |
| 815-373-#### | Elwood | Landline Numbers | Us Xchange Of Illino... |
| 815-374-#### | Dwight | Landline Numbers | Us Xchange Of Illino... |
| 815-375-#### | DeKalb | Wireless Numbers | United States Cellul... |
| 815-376-#### | Ohio | Landline Numbers | Frontier North, Inc.... |
| 815-377-#### | Crescent City | Landline Numbers | Broadwing Communicat... |
| 815-378-#### | Rockford | Wireless Numbers | Sprint Spectrum L.p.... |
| 815-379-#### | Walnut | Landline Numbers | Frontier North, Inc.... |
| 815-380-#### | Sterling | Landline Numbers | Essex Telcom, Inc.... |
| 815-381-#### | Rockford | Landline Numbers | Ameritech Illinois... |
Area Code 815 Introduction
| Area Code: | 815 |
| Country: | United States |
| State/Province: | Illinois - IL |
| Major City: | Rockford |
| Time Zone: | Central |
| Average property | $43.4K |
| Average age | 56 y/o |
| Average assets | $43.1K |
| Population density | 57,914 sq mi (149,932 km2) |
| Population | 12,801,539 |
| latitude Longitude: | |
| 36° 58′ N to 42° 30′ N / 87° 30′ W to 91° 31′ W | |
| About 815 : | |
| The 815 Area Code (or Area Code 815) is located in the state of IL. Area Code 815 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 2.27 million unique phone numbers and 7.92 million individuals near the city of La Salle Area code 815 was put into service. In 1957 area code 815 was split, along with a portion of area code 217, to form area code 309. In 2007 area code 815 was overlaid with area code 779. |
|
| Major cities or places | |
| Crystal Lake, IL>De Kalb, IL>Freeport, IL>Joliet, IL>Kankakee, IL>Loves Park, IL>Machesney Park, IL>Mchenry, IL>Rockford, IL>Romeoville, IL>Woodstock, IL | |