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How do I stop spam calls on my phone?

Turn on the free spam call blocking built into your phone. On iPhone, go to Settings, Phone, and turn on Silence Unknown Callers or Call Screening. On Android, the Google Phone app's Caller ID and spam and Call Screen features filter calls. Also ask your carrier for its free blocking app. Never press a number in a robocall to "opt out".

Sites last checked 15 Oct 2026. How we test

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Built-in call screening homepage on a phone
Built-in call screening on a phone, captured 15 Oct 2026

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Good to know

  • Register at donotcall.gov in the US. Scammers ignore it, but real companies will stop.

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