What area does 309 cover?
Area code 309 covers Illinois in Illinois.
What time zone is area code 309?
Central Time (CST)
Current local time: --:--
Fair time to call this area
Early morning · OK for personal calls. Not ideal for business.
How do I dial area code 309?
- From within the US
-
309-XXX-XXXXor1-309-XXX-XXXXMost areas require 10-digit dialing even for local calls.
- From abroad
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+1 309 XXX XXXXReplace +1 with your country's international dialing prefix if your phone doesn't support +.
- Storing in contacts
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+1309XXXXXXXUse E.164 format (+1 followed by all 10 digits) for maximum compatibility.
Is 309 a mobile or landline area code?
In the US, area codes don't distinguish between mobile and landline numbers. A 309 number could be either. Number portability allows people to keep their numbers when switching between mobile and landline service.
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