| General Information about Area Code 779 | |
|---|---|
| Country | United States |
| State / Province / Territory | Illinois |
| Major City | Rockford |
| Time Zone | Central (UTC-06:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 779-475 | South Beloit | Winnebago | Landline |
| 779-770 | Rockford | Winnebago | Wireless |
| 779-552 | Belvidere | Boone | Landline |
| 779-379 | Joliet | Will | Wireless |
| 779-301 | Kankakee | Kankakee | Wireless |