What "show block numbers" means and why you'd want it

Showing block numbers means turning on a setting so your phone displays which numbers you have blocked when they try to call or text you. By default, most phones hide blocked contacts — the call or message simply disappears without a trace, and you never see who tried to reach you. Turning this on lets you see the blocked number in your call log or message threads.

People turn this on for a few reasons. You might want to know if a specific person keeps trying to contact you. You might be tracking harassment or collecting evidence. Or you might have blocked someone by accident and want to spot them in your logs so you can unblock them. The setting itself doesn't change what happens to the call or message — it still gets blocked — it just makes the attempt visible to you.

Key Takeaways

  • On iPhone, blocked calls and texts do not appear in your logs by default, and there is no built-in setting to change this behavior.
  • On Android, the steps to show blocked numbers depend on your phone manufacturer and which messaging or phone app you use.
  • Samsung phones have a dedicated Blocked Contacts list you can view in the Contacts app or Phone app.
  • Google's Phone app on Android shows blocked calls in your call log if you turn on the setting in Call Screen settings.
  • Third-party call-blocking apps often have their own logs where you can see all blocked attempts, separate from your phone's native settings.

How to show blocked numbers on iPhone

Apple does not offer a built-in way to display blocked calls or messages in your call log or message threads. When you block someone on iPhone, their calls go straight to voicemail and their texts are silently deleted — you will not see them anywhere on your phone, even if you turn on every available setting.

If you need to see who has been trying to contact you, your only option is to check your voicemail directly. Blocked callers can still leave voicemails, and those will appear in your Voicemail tab in the Phone app. Open the Phone app, tap Voicemail, and listen through to find messages from blocked numbers. This is not the same as seeing blocked calls in your log, but it is the closest Apple offers.

If you are using a third-party call-blocking app like Nomorobo or RoboKiller, that app may keep its own log of blocked calls. Check the app itself — most have a history or log section where you can see attempts that were blocked by that app specifically, separate from your phone's native blocking.

How to show blocked numbers on Samsung Android phones

Samsung phones make it easy to see your blocked contacts. Open the Contacts app, tap the three-line menu icon in the top left, and select Settings. Scroll down and tap Blocked Contacts. You will see a list of every number and contact you have blocked on that phone.

You can also view blocked calls in the Phone app. Open the Phone app, tap the three-line menu, go to Settings, and look for Block Numbers or Blocked Calls. The exact name varies by Samsung model and Android version, but the option is usually in the Phone app settings. From there you can see calls from blocked numbers in a separate log.

If you want to see blocked text messages, open the Messages app, tap the three-dot menu, select Settings, and look for Blocked Contacts or Spam Protection. Samsung's messaging app keeps blocked texts separate from your main inbox, and you can view them here.

How to show blocked numbers on Google Pixel and other Android phones

Google's Phone app, which comes on Pixel phones and many other Android devices, has a built-in call screen feature. Open the Phone app, tap the three-dot menu in the top right, and select Settings. Tap Call Screen or Spam and Call Screen. Make sure the toggle for Call Screen is turned on.

Once Call Screen is active, blocked calls will appear in your call log with a label showing they were blocked or screened. Open your call log (the Recents tab in the Phone app) and you will see blocked numbers listed there with a note like "Blocked" or "Screened" next to them. This is different from Samsung — Google shows blocked calls mixed into your regular call log rather than in a separate list.

For text messages, the process depends on which messaging app you use. If you use Google Messages, open the app, tap your profile picture in the top right, select Settings, and look for Spam Protection. Turn it on, and blocked or spam texts will be filtered into a separate folder you can view. If you use a different messaging app, check that app's settings for a spam or blocked messages folder.

How to show blocked numbers in third-party call-blocking apps

Apps like Nomorobo, RoboKiller, Truecaller, and others keep their own logs of calls and texts they have blocked. These logs are separate from your phone's native call log and message threads. Open the app, look for a section called History, Log, Blocked Calls, or Activity, and you will see a list of every number the app blocked.

The advantage of third-party apps is that they often block more numbers than your phone's native settings — they use databases of known spam and scam numbers. The disadvantage is that you have to open the app to see the log; the blocked calls do not show up in your phone's regular call log unless the app integrates with your phone's system-level blocking (which varies by phone and app).

Check your app's settings to see if there is an option to integrate with your phone's native call log or to send blocked calls to a specific folder. Some apps offer this, others do not. If the app does not integrate, the only way to see what it blocked is to open the app itself.

What happens after you turn on showing blocked numbers

Turning on the setting to show blocked numbers does not change how blocking works. The call still goes to voicemail, the text still gets deleted or filtered, and the person trying to reach you still gets no answer or delivery confirmation. The only thing that changes is that you, the phone owner, can now see in your logs that they tried.

You can use this information to decide whether to unblock someone, to document harassment, or simply to stay aware of who is trying to contact you. If you decide to unblock a number, go back to your blocked contacts list, find the number, and select the option to unblock it. After that, calls and texts from that number will come through normally again.

Frequently Asked Questions

Can a blocked person tell they are blocked?

Not from your phone settings alone. When you block someone, their calls go to voicemail and their texts fail to send, but they do not receive a message saying "you are blocked." However, if they try to call repeatedly and always get voicemail, or if they notice you never respond to texts, they may figure it out through pattern.

Will turning on show block numbers use more battery or data?

No. Showing blocked numbers in your log is just a display setting — it does not change how your phone processes calls or texts, and it does not use extra battery or data. It simply makes information visible that was already being recorded.

If I unblock someone, will they see old blocked calls in my log?

No. Unblocking someone does not restore old blocked calls to your log. Those calls are gone. Unblocking only means that future calls and texts from that number will come through normally.

Can I see blocked numbers if I do not have a call-blocking app?

On Samsung and Google Pixel phones, yes — the native phone and messaging apps have built-in blocking with logs. On iPhone, no — Apple does not show blocked calls or texts anywhere except in voicemail. If you need to see blocked activity on iPhone, you will need a third-party app.

What if I blocked someone and forgot who it was?

Go to your blocked contacts list (Contacts app on Samsung, Phone app settings on Google Pixel, or Settings on iPhone). The list shows the phone number or contact name. If it is just a number with no name, you may not be able to identify who it is without calling them back, which would unblock them.