Turn on caller ID and spam protection

In Google’s Phone app, open Settings and review Caller ID & spam. Turn on caller identification, then decide whether suspected spam should be filtered automatically.

See Google’s current Phone app instructions →

Check your manufacturer’s call-screening tools

Pixel, Samsung, and other Android phones may include additional screening or smart-call features. Names and availability vary by model, carrier, country, and Android version.

Add carrier protection

Carrier filtering works at the network layer and can complement the Android dialer. Begin with the free level and review your missed calls and voicemail before making filtering more aggressive.

Report and block repeat callers

Reporting improves shared spam signals and blocking stops that displayed number from ringing again. Because scammers spoof caller ID, treat this as one layer rather than a permanent fix.

Handle the call that gets through

The safest option is to hang up and verify the organization through an official number. Stall the Scam is an optional second-device tool for a live incoming call you already believe is fraudulent.

Frequently asked

Questions about spam calls

Does Android have a built-in spam call blocker?

Many Android phones do, although controls vary by manufacturer, dialer, carrier, region, and software version.

Should I block every number not in my contacts?

That is effective but can hide legitimate calls. Consider screening or voicemail if you routinely hear from new numbers.

Does Stall the Scam need an Android app?

No. It runs in Chrome on a laptop or spare phone beside the call.

Safety first. The FTC’s primary recommendation for unwanted and suspicious calls is to hang up, use call blocking, and report fraud. Read the FTC guidance.