Lookup › Area code 309
309 Area Code — Peoria, Illinois
Area code 309 serves Peoria, IL.
Most looked-up 309 numbers
Phone prefixes in 309
Carriers serving 309
- Verizon (2 numbers)
- Twilio (1 numbers)
- Teleport Communications Americ (1 numbers)
- Henry County Telephone Co. (1 numbers)
Frequently asked questions
Where is area code 309?
Area code 309 serves Peoria, IL.
What prefixes are in area code 309?
Phone2.io tracks 6 phone prefixes in area code 309, with carrier and spam-report data on individual numbers.
More about area code 309
Area code 309 overview, history, and local numbers · Get a IL phone number
Last updated: January 19, 2026