Block a number directly from your call log or contacts

The fastest way to block a number on Samsung is to open the Phone app, find the number you want to block in your call history, and tap and hold it until a menu appears. Select Block number or Block (the exact wording depends on your Samsung model and Android version). The number is now blocked — calls and texts from it will no longer reach you.

If the number is already saved in your Contacts, open the contact, tap the three-dot menu at the top right, and select Block number. This blocks the contact and all phone numbers associated with it.

Once blocked, calls from that number go straight to voicemail, and text messages are silently deleted. You won't see notifications or missed call alerts. The blocked contact stays in your phone — blocking doesn't delete it.

Key Takeaways

  • Open the Phone app, tap and hold a number from your call log, and select Block number to stop calls and texts from that number.
  • Blocked calls go to voicemail and blocked texts are deleted without notification.
  • You can view and manage your blocked numbers in the Phone app's settings menu under Block numbers or Call settings.
  • Blocking a contact in your Contacts app also blocks all numbers linked to that contact.
  • You can unblock a number at any time by finding it in your blocked list and selecting Unblock.

Access your blocked numbers list in Phone settings

To see which numbers you have blocked, open the Phone app and tap the three-line menu (hamburger icon) or the three-dot menu at the top. Look for Settings or Call settings, then select Block numbers or Blocked contacts. The exact menu path varies slightly between Samsung models, but this section always shows your complete list of blocked numbers.

From this list, you can tap any blocked number to unblock it when ready. You can also block additional numbers from this screen by tapping the plus icon or Add button and entering the number manually.

Block unknown or private numbers

If you're receiving calls from unknown numbers or private callers, Samsung lets you block entire categories of calls rather than individual numbers. In the Phone app's Settings or Call settings, look for Call rejection, Reject calls, or Block unknown numbers. Enable this toggle to automatically reject calls from numbers not in your contacts.

Some Samsung models also offer Block private numbers or Block withheld numbers, which stops calls from people who have hidden their caller ID. These settings work independently — you can turn on one, both, or neither depending on your preference.

Use Samsung's spam and scam protection features

Samsung phones include a built-in spam filter that works alongside your block list. Open the Phone app, go to Settings, and look for Spam protection, Call filter, or Caller ID and spam protection. Turn this on to let Samsung automatically flag suspected spam and scam calls.

When spam protection is active, suspicious calls appear with a Spam label in your call log, and you can choose to block them from there. Some Samsung models let you report numbers as spam directly — tap and hold the number and select Report as spam. This helps Samsung's database identify new spam sources.

Block numbers through your Messages app

If you want to block a number because of unwanted text messages, you can block it from the Messages app instead. Open Messages, find the conversation with the number you want to block, tap and hold it, and select Block number or Block contact. This blocks the number from both calls and texts.

You can also open an individual message, tap the sender's name or number at the top, and look for a Block option in the contact details that appear. The exact steps depend on which messaging app you use — Samsung's default Messages app, Google Messages, or a third-party app — but all of them support blocking.

Unblock a number when you change your mind

To unblock a number, return to the Phone app's Block numbers list (in Settings), find the number you want to unblock, and tap it. Select Unblock or Remove from block list. The number is when ready unblocked and can call or text you again.

If you unblock a contact by mistake, you can block it again using the same steps. There's no limit to how many times you can block and unblock the same number.

What happens when you block a number

When you block a number on Samsung, the person calling or texting that number experiences no notification that they've been blocked. Their call goes to your voicemail as if your phone were off or you didn't answer. Text messages are silently deleted — they don't bounce back to the sender or show a delivery failure.

From your side, you won't see missed call alerts, voicemail notifications, or message previews from blocked numbers. However, the blocked contact remains in your phone's memory, and you can see a record of blocked calls and texts if you go looking for it in your call log or message threads — they straightforward don't trigger notifications.

Frequently Asked Questions

Can the person I blocked tell that I blocked them?

No. When someone calls a blocked number, the call goes to voicemail without any indication that they've been blocked. They won't receive a message saying "this number is blocked" or see a failed delivery notice. From their perspective, it looks like you didn't answer.

Will blocked numbers still show up in my call log?

Blocked calls and texts typically don't appear in your regular call log or message threads. However, some Samsung models keep a separate record of blocked calls that you can view in your Phone app's settings. Check your Block numbers section to see if a history is available.

Can I block a number without saving it to my contacts?

Yes. You don't need to save a number to your contacts to block it. straightforward tap and hold the number in your call log and select Block, or go to your Phone app's settings and manually enter the number in the Block numbers section.

What's the difference between blocking and reporting as spam?

Blocking stops calls and texts from reaching you. Reporting as spam does the same thing and also sends information about the number to Samsung's spam database to help protect other users. You can do both — report a number as spam, which automatically blocks it.

If I block a number, will they still be able to leave voicemail?

Blocked callers can still leave voicemail messages, but you won't receive notifications about them. The voicemail will sit in your voicemail box without alerting you. You can listen to it if you check your voicemail manually, but most people don't.