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How to Block Private Numbers on Samsung Phones (instantly)

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This is exactly how to block private numbers on any Samsung phone using these 2 methods with all the necessary screenshots that are required.

I completely agree. Getting calls from private numbers can be so frustrating, especially when they turn out to be telemarketers or scammers. Blocking private numbers is definitely a great way to take back control of your phone and keep unwanted calls at bay.

Methods for Blocking Private Numbers on Samsung

There are two main ways to block private numbers on your Samsung phone: 

1. Using the Phone App

This method allows you to automatically block all calls from private numbers.

Step-by-step instructions for Blocking calls from Unknown numbers

  • Open the Phone app.
  • Tap the three dots in the top right corner.
  • Select “Settings”.
  • Choose “Block numbers”.
  • Enable the toggle for “Block unknown/private numbers”.


screenshot of blocking unknown calls on samsung
screenshot of block calls from unknown number and spam scam calls cropped samsung
screenshot of blocking spam and scam calls menu on samsung

Enabling this option automatically blocks all calls from numbers not saved in your contacts or identified by caller ID. This is a convenient way to stop receiving most spam calls from private numbers.

In my case, I was getting frequent calls from unwanted private and unknown numbers on my Samsung device. It was very disruptive and annoying. I wanted to block these calls so my phone would stop ringing from unidentified callers.

Here is what worked for me to block private numbers on my Samsung:

I hope these suggestions based on my personal experience help you stop calls from private and unwanted numbers on your Samsung!

2. Blocking Specific Private Numbers

This method allows you to block individual private numbers that have contacted you previously.

Step-by-step instructions:

  • Follow steps 1-3 from the previous method.
  • Tap “Add number”.
  • Enter the private number you want to block.
  • Tap “Save” or “Done”.


This method is useful if you have received unwanted calls from a specific private number and want to prevent them from contacting you again.

Additional Notes

  • Check if your carrier has additional call blocking services. I contacted mine and they offered network-level blocks for private numbers and blocking specific numbers.
  • Carrier blocking combined with my device settings gave me the most comprehensive blocking.
  • However, completely blocking private calls can stop legitimate calls too, like doctors using automated systems.
  • If you start missing expected calls, you may need to selectively unblock certain private numbers or adjust the strictness of blocks.
  • For me, potentially missing some calls was worth eliminating all the harassment from spam “private number” calls.
  • But your tolerance may differ on how aggressive you want to be blocking calls from numbers with hidden caller IDs.


Blocking private numbers can be a helpful way to reduce spam calls and protect your privacy. By using the methods outlined above, you can take control of your phone and prevent unwanted calls from disrupting your day. Remember to customize your blocking preferences based on your needs and consider alternative methods offered by your carrier.

That’s it for the blog post today. Today I tried showing you all the methods and proven steps that I personally use to block unwanted spam calls on my Samsung M33, which is currently my daily device. These tricks seem to help to the utmost levels. However, be sure to confirm the options for blocking all spam, unknown calls, or high-risk calls.

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I'm Maruti Kashyap, your Samsung tech expert with over 10 years of experience. Find troubleshooting guides, performance tips, and app recommendations at GuruSamsung.com. With access to global Samsung service centers, I'm always up-to-date on the latest. Join me for a seamless Samsung experience.

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