| 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 |
|---|---|---|---|
| 779-368 | Rockford | Winnebago | Landline |
| 779-204 | Verona | Grundy | Landline |
| 779-208 | Rockford | Winnebago | Wireless |
| 779-253 | South Beloit | Winnebago | Wireless |
| 779-333 | Frankfort | Will | Landline |
| 779-233 | Joliet | Will | Wireless |
| 779-537 | Rockford | Winnebago | Wireless |
| 779-500 | Rockford | Winnebago | Landline |
| 779-696 | Rockford | Winnebago | Landline |
| 779-234 | Plainfield | Will | Landline |
| 779-236 | Kankakee | Kankakee | Wireless |
| 779-875 | Joliet | Will | Wireless |
| 779-348 | Rockford | Winnebago | Landline |
| 779-221 | Rockford | Winnebago | Landline |
| 779-774 | Rockford | Winnebago | Landline |
| 779-861 | Dixon | Lee | Wireless |
| 779-240 | Kankakee | Kankakee | Wireless |
| 779-222 | Dekalb | Dekalb | Landline |
| 779-300 | Rockford | Winnebago | Wireless |
| 779-771 | Rockford | Winnebago | Wireless |