How to Block Unknown Callers

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This wikiHow teaches you how to block calls from anonymous numbers on your iPhone or Android. You can do this by using Do Not Disturb on your iPhone, or by changing call settings on your Android if you have a Samsung phone. If you don't have a Samsung phone, you can download an app called "Should I Answer?" to block incoming unknown calls on Android. Unfortunately, there isn't an app or a setting available on iPhone that will only block incoming private, unknown, or restricted calls.

Method 1
Method 1 of 3:

On iPhone

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  1. Tap the grey app with 2 gears on it. You'll usually find it on the Home Screen.
  2. It's near the top of the Settings page.
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  3. It will turn green
    iPhone Switch On Icon
    .
  4. This option is near the bottom of the screen.
  5. Doing so will select your entire contacts list as the exception to Do Not Disturb. You will no longer receive calls from people who aren't saved in your Contacts app.
    • This method blocks calls from any numbers that aren't saved in your Contacts app, meaning that you might miss out on a work- or appointment-based call.
    • Do Not Disturb also prevents other app notifications (e.g., text messages, email, social media) from showing up as alerts.
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Method 2
Method 2 of 3:

On Samsung Galaxy

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  1. Samsung phones are the only Androids that have an anonymous caller rejection setting. [1]
  2. Tap the phone-shaped app on your Android's main screen.
  3. It's in the top-right corner of the screen. A drop-down menu will appear.
  4. You'll find this near the bottom of the drop-down menu.
  5. It's in the middle of the menu. This will open the call-blocking settings.
  6. It will turn blue
    Android 7 Switch On
    . Your Samsung will now block any calls from unknown numbers.
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Method 3
Method 3 of 3:

Using Should I Answer on Android

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  1. If you already have the Should I Answer app, skip this step. To download it:
    • Open the
      Android Google Play
      Google Play Store.
    • Tap the search bar.
    • Type in should i answer
    • Tap Should I Answer?
    • Tap INSTALL
    • Tap AGREE
  2. Tap OPEN on the right side of the Google Play Store page, or tap the Should I Answer app icon in your Android's App Drawer.
  3. Both CONTINUE options are at the bottom of the screen. Doing so will take you to the main page.
  4. It's at the top of the main Should I Answer page.
  5. This area is near the bottom of the page.
  6. It will change color
    Android 7 Switch On
    which means that Should I Answer will block incoming calls from restricted or anonymous numbers.
    • You can close Should I Answer after this point—your settings will be saved and Should I Answer will remain on in the background.
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Community Q&A

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  • Question
    We are trying to trace an ex who uses restricted number calling to obtain proof to get an injunction. Will this TrapCall app work to reveal their cell phone number?
    Community Answer
    Yes, TrapCall reveals blocked numbers.
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    Thank you for your feedback.
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    Not Helpful 1 Helpful 9
  • Question
    How can I stop getting blocked calls on my landline phone?
    Community Answer
    You can use PhoneTray software (installed on your PC) to prevent blocked calls from getting through on a landline. It costs around $30.
    Thanks! We're glad this was helpful.
    Thank you for your feedback.
    If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow
    Yes No
    Not Helpful 7 Helpful 15
  • Question
    How do I get rid of an unknown number on Whatsapp?
    Community Answer
    Go onto recent calls and select, Clear Recent. The number should now be gone.
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    Thank you for your feedback.
    If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow
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      Tips

      • If you live in the United States of America, you can register your phone number with the Do Not Call registry by going to https://www.donotcall.gov/register/reg.aspx , clicking REGISTER HERE , and entering your phone number and a working email address. This will require telemarketers and spammers to remove your phone number from their call lists within 31 days.
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      References

      1. ↑ https://www.digitaltrends.com/mobile/how-to-block-a-number/

      About This Article

      Article Summary X

      1. Open Settings .
      2. Tap Do Not Disturb .
      3. Toggle on "Do Not Disturb" mode.
      4. Tap Allow Calls From .
      5. Tap All Contacts .

      Android:
      1. Open Phone .
      2. Tap the three-dot menu.
      3. Tap Settings .
      4. Tap Block numbers .
      5. Toggle on "Block anonymous calls."

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