How To Block Unknown Numbers on iPhone

How To Block Unknown Numbers On Iphone 1

Are you getting unknown calls and messages on your iPhone but have no how to block them? Whether you have the latest iPhone running on iOS 13 or above or an earlier version, blocking calls from unknown numbers is relatively easy.

Quick Answer

If you want to block an unknown number on your iPhone, open the Phone app and tap the “Recent,” “Favorite,” or “Voicemail” option. Select the contact or tap the “(i)” icon next to the number. Tap “Block This Caller” to put it on the blocklist. 

In this article, we will guide you on how to block unknown numbers on iPhone with simple step-by-step methods to help get rid of unwanted calls and messages.

Blocking Unknown Numbers on iPhone

If you don’t know how to block unknown numbers on your iPhone, our five step-by-step methods will help you do this task without wasting your time.  

Method #1: Blocking Numbers From the Phone App

If you want to avoid calls from a specific person(s), you can block them with the iPhone Phone app.

  1. Launch the Phone app from the home screen.
  2. Tap the “Recent,” “Favorite,” or “Voicemail” option from the bottom of the screen.
  3. Search for the person’s contact or number.
  4. Tap the “(i)” icon next to the number or the contact and tap “Block This Caller.”
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Method #2: Sending the Unknown Caller to Voicemail

On iOS 13 and above, Apple has introduced a new feature that allows you to silence the unknown callers by sending them directly to voicemail.

  1. Open “Settings.”
  2. Go to the “Phone” option and tap “Silence Unknown Callers.”
  3. Toggle the button next to the “Silence Unknown Callers” option to enable it.
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Method #3: Setting Up a Third-Party App To Filter and Spam Unknown Numbers

To block unknown callers on your iPhone, use any third-party app that filters the spam numbers.

  1. Go to the App Store on your iPhone.
  2. Search for the spam detecting app and install it.
  3. Head to the Settings app.
  4. Tap “Phone,” scroll down and tap the “Call Blocking & Identification” option.
  5. Toggle the switch to “ON” next to the installed spam detecting app.
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When you receive a call, your iPhone will check the caller’s number and compare it with the phone numbers in your spam app. If there is a match, your iPhone will automatically block the phone call. 


If the Silence Unknown Callers feature is unavailable on your iPhone, update your phone to the latest version. To do this, go to the Settings app and tap the “General” option. Select the “Software Update” option. If the update is available, select one and tap the “Install Now” option. Enter your iPhone password or pin and tap the “Install Now” option again.

Method #4: Setting Up No Caller ID

If your iPhone does not have the Silence Unknown Caller feature, you can block unknown numbers in the following way.

  1. Open the Contacts app.
  2. Tap the “+” icon to add the unknown number to a new contact. 
  3. Type “No Caller ID” under the name.
  4. Type “000-000-0000” in the number bar and tap “Done” to save the contact.
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  5. In the saved contact profile, tap the “Block This Caller” and confirm when prompted.
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Method #5: Blocking Numbers Using Do Not Disturb

To block calls from everyone or specific people on your contact list, turn on the “Do Not Disturb” option on your iPhone.

  1. Launch the Settings app on your device.
  2. Head to the “Focus” option and tap “Do Not Disturb.”
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  3. Select the “People” option and tap “Calls From.”
  4. Choose the contacts you would like to receive calls from.
  5. Head back to the main Do Not Disturb menu and toggle the switch to the “ON” position.

You can also customize when the “Do Not Disturb” option will activate. To do this, tap the “Schedule and Automation” option. Set time, location, or apps and tap “Done.


Everyone with a cell phone receives irritating calls from telemarketers and other numbers. In this guide, we’ve discussed several ways to block unknown numbers on your iPhone. 

Hopefully, one of these methods has helped you block unwanted calls quickly.

Frequently Asked Questions

Where is my blocked contacts list on my iPhone?

If you want to unblock a contact on your iPhone, launch the “Settings” app. Go to the “Phone” option and tap the “Blocked Contacts” option to see the list. For FaceTime, you can access the blocked contacts under the Settings > FaceTime > Blocked Contacts.

Can I set my iPhone to only accept calls from contacts?

Yes, you can set your iPhone only to accept calls from contacts. To do this, head to Settings > Focus > Do Not Disturb and choose the contacts you would like to receive calls from on your iPhone.

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