Block or unblock a phone number If you don’t want to get calls from a certain phone number, you can block it. When the number tries to call you, your phone declines the call automatically. Note: Some of these steps work only on Android 6.0 and up. Learn how to check your Android version. Block a number Open your device’s Phone app . Tap Call history . Tap a call from the number you want to block. Tap Block / report spam.
Note: If your phone doesn’t have visual voicemail, you could still get voicemails from blocked callers. Learn how to see voicemails listed in your Phone app. Unblock a number Open your device’s Phone app