How to Block Spam Calls on Android

In the Phone by Google app, open your recent calls, choose the call, then select Block / report spam. You can also review blocked-number settings for private or unidentified numbers. The exact labels and features depend on the phone manufacturer, Android version, and calling app.

Check the setting you choose

Blocking unknown or private numbers is different from blocking every number that is absent from your contacts. If you expect a call from a clinic, delivery driver, or business, review how your phone handles filtered calls.

See Google’s current Phone app instructions for steps and version requirements. If a caller makes a suspicious claim, use a trusted number to verify it; blocking is only one part of handling the call.