Area code lookup
What area code is 331?
Here's everything about it.
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Caller ID · NPA-NXX-XXXXLive
Area code
331
Location
Aurora (overlay), IL
Local time
--:--:-- --
Aurora (overlay)
331 at a glance
SummaryState
Illinois
Time zone
Central (CT)
UTC offset
UTC−6 / −5 DST
Observes DST
Yes
Country
United States
Cities served by 331
Aurora (overlay)Aurora (overlay)
Where 331 sits on the map
No overlayCoverage area
About the 331 region
331 covers Aurora (overlay) in Illinois. It currently has no overlay code, so seven-digit dialing may still be possible within the region.
Who called me from 331?
Community reportsNo community reports for 331 numbers yet. Be the first to report one.
Got a call from 331 that isn't listed?
Frequently asked questions
FAQWhat area code is 331?+–
331 is a telephone area code serving Aurora (overlay) in Illinois, United States.
Where is area code 331 located?+–
It covers Aurora (overlay) in Illinois.
What time zone is 331?+–
331 observes Central (CT), which is UTC−6 / −5 DST and follows daylight saving time.
Can I get a 331 phone number?+–
Yes — most mobile carriers and VoIP providers let you request a 331 number regardless of where you physically live.