| 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 |
|---|---|---|---|
| 309-227 | Cordova | Rock Island | Landline |
| 309-832 | Abingdon | Knox | Landline |
| 309-282 | Peoria | Peoria | Landline |
| 309-517 | Rock Island | Rock Island | Landline |
| 309-494 | Peoria | Peoria | Landline |
| 309-661 | Bloomington | Mclean | Landline |
| 309-345 | Galesburg | Knox | Landline |
| 309-641 | Morton | Tazewell | Landline |
| 309-461 | Minonk | Woodford | Landline |
| 309-545 | Manito | Mason | Landline |
| 309-537 | New Boston | Mercer | Landline |
| 309-221 | Galesburg | Knox | Wireless |
| 309-898 | Bradford | Stark | Landline |
| 309-291 | Morton | Tazewell | Landline |
| 309-306 | Peoria | Peoria | Landline |
| 309-873 | Gladstone | Henderson | Landline |
| 309-430 | Rock Island | Rock Island | Landline |
| 309-754 | Sherrard | Mercer | Landline |
| 309-326 | Farmington | Fulton | Landline |
| 309-756 | Moline | Rock Island | Landline |