Telephone Area 309. Page 8.
Prefix: +1309
This prefix is distributed within the state Illinois
The largest city in the region is Peoria
Time Zone: Central
Winter time: UTC-6
Summer time: UTC-5
Below on the map, there is indicated the largest city in the telephone area +1-309-...-.... Illinois Peoria.
In the United States, telephone numbers are divided into a country code (+1), an area code (or prefix), which is three digits long, and a subscriber number (seven digits). These are just a few examples, and there are over 300 area codes in the United States. Each code can cover both large cities and less populated areas depending on population density and telephone network distribution.
Phone numbers +1-309-YYY-YYYY
| Company | District | Major City | Prefix |
|---|---|---|---|
| Ymax Communications Corp. | Peoria, IL | +1-309981-SSSS | |
| +1-309984-SSSS | |||
| Sprint Communications Company, L.p. | Rock Island | Cordova, IL | +1-309987-SSSS |
| Nextel Communications | Lacon, IL | +1-309988-SSSS | |
| T-mobile Usa | Peoria, IL | +1-309989-SSSS | |
| Ameritech Illinois | Peoria, IL | +1-309992-SSSS | |
| Frontier North | Mclean | Bloomington, IL | +1-309994-SSSS |
| Mid-century Telephone Cooperative | Stark | La Fayette, IL | +1-309995-SSSS |
| Sprint Communications Company, L.p. | Good Hope, IL | +1-309997-SSSS | |
| Ameritech Illinois | Peoria | Peoria, IL | +1-309999-SSSS |
