How to Block a Number on Samsung Galaxy Phones

Someone bothering you? Block them

Even one unwanted phone call can be one too many. Fortunately, the Android OS provides a variety of call blocking methods. For Galaxy phones, Samsung also offers solutions.

Samsung supplies several approaches to let you quickly add phone numbers to an Auto reject list or Block list, although specifics depend on which Galaxy phone you're using.

Consistency is Evolving

Overall, call blocking features on Galaxy phones have evolved over the years to improve their elegance, flexibility, and compatibility with call blocking capabilities on other Galaxy and non-Galaxy models. However, standardization of these features across all Galaxy phone models, from all carriers, hasn't quite happened.

Certain features appear on some Galaxy phones, but not all. You'll also encounter variations in the terminology and icons appearing in menus. For instance, what was once known as the Auto reject list on Galaxy phones is now typically called the Block list. Unknown callers might instead be referred to as Anonymous callers or as Contacts without numbers.

Instructions in this article apply to Samsung Galaxy S10, S9, S8, S7, S6 and S5.

How to Block a Number on Galaxy S10, S9, S8, and S7

You can block calls directly through the Phone menu instead of going to the Blocklist first.

On certain recent Galaxy phones, you can now opt to reject a number either Always or Just once. Some recent models will also prevent a blocked number from contacting you by text messaging as well as by phone.

  1. Go to Phone > Recents.

  2. Select the phone number from Recents, then choose Details.

  3. Select Block at the bottom of the screen. If Block does not appear, choose Menu > Block.


  4. Select Block to confirm that you want to block the number.

    Screenshots of a Samsung phone showing how to block a number

How to Block a Number on Galaxy S6

From the Phone app, select Menu > Settings > Block numbers or Block list. Enter the number you want to block or tap Contacts and add the number there. 

To unblock a caller, tap Remove or Minus (-) next to the number.

To block and unblock all unknown callers, toggle the Block unknown callers switch.

  1. Select Plus (+).

  2. Enter the number.

  3. Select Save.

How to Block a Number on Galaxy S5

From the Phone app, you can find your Auto reject list in Menu > Settings > Call > Call rejection > Auto reject list.

To add a number to your Auto reject list:

To block a number on AT&T’s edition of the Galaxy S5, you remove a phone number from your Auto reject list by performing the following:

  1. Select Delete.

  2. Select the checkbox next to the desired phone number,

  3. Select Delete again.

Reasons for the Differences

The version of Android you have installed on your phone partially dictates call blocking capabilities. From the Galaxy S5 to the S9 alone, Samsung moved from Android 4.4 KitKat to Android 8.0 Oreo, with wireless carriers adopting these versions at their respective paces.

In its online documentation for the Galaxy S6, for example, T-Mobile describes two different techniques for blocking phone numbers; one method is for a Galaxy S6 running Android 5.0 Lollipop, while the other is for Android 6.0 Marshmallow. If you've updated an older Galaxy model to a more recent version of Android, your call blocking features may have changed, too.

Complicating matters further is how wireless providers differentiate their phones through the feature sets they offer; despite being the same phone, a T-Mobile Galaxy S9 may differ from a Galaxy S9 sold by Verizon or AT&T.

What Else Can You Do?

If these methods and their variations don't work for you, search online for carriers' product manuals for their editions of various Galaxy series. Alternatively, contact your provider for specifics about how to block phone numbers on your specific Galaxy phone model.

You’ll find plenty of third-party call blocking apps available, too.

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