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Phone Numbers: (309) 336-XXXX
Recently Searched Numbers in the 309 Area Code
About the (309) 336 Prefix
The (309) 336 prefix serves Peoria, Illinois, United States. Phone numbers in this exchange follow the format (309) 336-XXXX. The primary carrier assigned to this prefix is AT&T.
(309) 336 Geographic Info
- Primary City
- Peoria
- State
- Illinois, United States
- Primary Carrier
- AT&T
Other Prefixes in the 309 Area Code
The way we use phones has changed — but so have the risks. Here's something our research team thinks you should know:
In the Google Phone app on Android, blocking unknown numbers (Settings → Blocked Numbers → toggle on "Unknown") outright rejects calls that don't transmit a caller ID. It's more aggressive than iPhone's Silence Unknown Callers — blocked calls don't go to voicemail.
Read more: How to Stop Spam Calls on iPhone and Android (2026 Guide) →Frequently Asked Questions
What area code is (309) 336?
(309) 336 is a telephone prefix in the 309 area code, which serves Peoria, Illinois, United States.
Where is the (309) 336 prefix located?
Phone numbers with the (309) 336 prefix are located in Peoria, Illinois, United States. The primary carrier for this prefix is AT&T.
What carrier uses the (309) 336 prefix?
The primary carrier assigned to the (309) 336 prefix is AT&T. However, numbers may be ported to other carriers over time.
How do I look up a phone number with the (309) 336 prefix?
Enter the full 10-digit number (e.g. (309) 336-XXXX) into ClarityCheck's reverse phone lookup to instantly see the owner's name, address, social profiles, and more.