Where is the 331 area code?

The 331 area code covers Aurora, Illinois (Central Time).

Are calls from 331 spam?

Not all 331 calls are spam, but scammers often spoof local 331 numbers ("neighbor spoofing") so a call looks familiar. Look up the specific number to check.

331 area code

Aurora, Illinois · Central Time

The 331 area code serves Aurora, Illinois. Getting a call from 331? It may be a real local caller — but scammers frequently spoof local 331 numbers so the call looks familiar (“neighbor spoofing”), even when they’re nowhere near Aurora.

Recently reported 331 numbers

No 331 numbers have been reported here yet. If a 331 number called you, look it up above and add a report to warn others.

Common scams using 331 calls

🏛️ IRS / Tax Scam

"You owe back taxes — pay now or be arrested."

🪪 Social Security Scam

"Your Social Security number has been suspended."

🚗 Auto Warranty Robocall

"Your car's extended warranty is about to expire."

📦 Package / Amazon Scam

"There's a problem with your delivery / Amazon order."

Area-code information reflects where numbers in 331 are normally assigned. Caller ID can be spoofed, so a 331call may not actually originate from Aurora, Illinois.