| General Information about Area Code 309 | |
|---|---|
| Country | United States |
| State / Province / Territory | Illinois |
| Major City | Peoria |
| Time Zone | Central (UTC-06:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 309-601 | Rock Island | Rock Island | Landline |
| 309-220 | Washburn | Marshall | Landline |
| 309-352 | Green Valley | Tazewell | Landline |
| 309-764 | Moline | Rock Island | Landline |
| 309-404 | Peoria | Peoria | Landline |
| 309-569 | Bushnell | Mcdonough | Wireless |
| 309-431 | Peoria | Peoria | Landline |
| 309-353 | Pekin | Tazewell | Landline |
| 309-329 | Astoria | Fulton | Landline |
| 309-606 | Wyoming | Stark | Landline |
| 309-558 | Rock Island | Rock Island | Landline |
| 309-276 | Peoria | Peoria | Landline |
| 309-588 | Macomb | Mcdonough | Landline |
| 309-734 | Monmouth | Warren | Landline |
| 309-422 | Peoria | Peoria | Landline |
| 309-445 | Bloomington | Mclean | Landline |
| 309-777 | Ipava | Fulton | Landline |
| 309-454 | Bloomington | Mclean | Landline |
| 309-786 | Rock Island | Rock Island | Landline |
| 309-393 | Benson | Woodford | Landline |