| 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 |
|---|---|---|---|
| 309-502 | Geneseo | Henry | Wireless |
| 309-820 | Bloomington | Mclean | Landline |
| 309-747 | Gridley | Mclean | Landline |
| 309-504 | Danvers | Mclean | Landline |
| 309-589 | Peoria | Peoria | Landline |
| 309-409 | Peoria | Peoria | Landline |
| 309-668 | Canton | Fulton | Landline |
| 309-699 | Creve Coeur | Tazewell | Landline |
| 309-507 | Geneseo | Henry | Wireless |
| 309-484 | Altona | Knox | Landline |
| 309-250 | Edelstein | Peoria | Landline |
| 309-727 | Arrowsmith | Mclean | Landline |
| 309-206 | Rock Island | Rock Island | Landline |
| 309-522 | Osco | Henry | Landline |
| 309-851 | Kewanee | Henry | Landline |
| 309-690 | Peoria | Peoria | Landline |
| 309-874 | Atlanta | Logan | Landline |
| 309-625 | Aledo | Mercer | Landline |
| 309-741 | Elmwood | Peoria | Landline |
| 309-818 | Bloomington | Mclean | Landline |