What area code is 309?
Here's everything about it.
Instant lookup for the 309 area code — location, time zone, cities served, and who's been calling from it. No sign-up, no app.
309 at a glance
Summary
Cities & regions served by 309
PeoriaShowing 12 of 202 recorded communities — major cities first.
Where 309 sits on the map
Overlay: 861Coverage area
About the 309 region
309 covers Peoria in Illinois, including Abingdon, Adair, Albany, Aledo and Alexis. The code has been in service since 1957.
As the Peoria region grew, 309 ran low on available numbers, so 861 was added as an overlay code over the same geographic area. Both codes are local to each other and 10-digit dialing applies throughout.
Created from parts of 217 and 815; 2023: overlaid by 861.
Who called me from 309?
Community reports- Caller ID is trivially spoofed: an incoming call that displays 309 does not prove the caller is really in the 309 region or even in the United States.
- Avoid calling back unknown one-ring numbers — some premium-rate scams rely on curiosity callbacks.
- Never share verification codes, payment details, or remote access during an unsolicited call, even if the caller claims to be your bank or a government agency.
- When a 309 call pressures you to act immediately, hang up and contact the organization directly through its official number.
Be the first to add a community report for a 309 number below.
Frequently asked questions
FAQWhat area code is 309?+–
309 is a telephone area code serving Peoria in Illinois, United States, in service since 1957.
Where is area code 309 located?+–
It covers Abingdon, Adair, Albany, Aledo and Alexis in Illinois.
What cities are in area code 309?+–
Major communities on record include Abingdon, Adair, Albany, Aledo and Alexis, among others. The code's territory spans the Peoria region of Illinois.
What time zone is 309?+–
309 observes Central (CT), which is UTC−6 / −5 DST and follows daylight saving time.
When did area code 309 start?+–
309 entered service in 1957. Its history: created from parts of 217 and 815; 2023: overlaid by 861.
Why do calls to 309 require 10-digit dialing?+–
309 shares its territory with overlay code 861. Because both codes serve the same geographic area, the phone network needs all 10 digits to route a call, and calls between the codes are still local.
Is 309 a scam area code?+–
Scam and robocall traffic can use any North American code, 309 included — caller ID is easy to spoof, so the code alone does not tell you who is really calling. Check the community reports on this page before calling back an unknown 309 number, and report anything suspicious.
Can I get a 309 phone number?+–
Yes — most mobile carriers and VoIP providers let you request a 309 number regardless of where you physically live.