How To Permanently Block A Number?

How to permanently block a number? Blocking a cell phone number is critical for maintaining privacy from certain groups, who will call you repeatedly if they have your number.

Blocking a number permanently is also surprisingly simple, and you can still allow your number to be seen if necessary.

How To Permanently Block A Number
How to block a number permanently?

Continue reading to learn everything you need to know about how to permanently block a phone number. Here are five different methods for permanently blocking a phone number.


The first step in reducing the number of unwanted calls to your phone is to opt out of telemarketers by entering your phone number into the National Do Not Call Registry. You can register up to three numbers at once on in a new window) and see if your digits are already there (Opens in a new window). 

To confirm your registration, you must include an email address. Alternatively, dial 1-888-382-1222 (TTY: 1-866-290-4236) from the phone you wish to register on your android phone.

Your phone number will be added to the registry within 24 hours, according to the FTC, but it may take up to 31 days for sales calls to stop. If telemarketers continue to call, file a complaint (Opens in a new window).

Telemarketers and robocallers are also blocked by apps such as RoboKiller and Nomorobo (and even deploy answer bots that pester them). Text spammers are also dealt with by apps like Do Not Respond at scam block.

However, don’t expect this to stop unwanted phone calls. Although the FCC has taken steps to reduce robocalls, they continue to be prevalent (Opens in a new window). While you wait for real results, here are some other things you can do to keep your phone from ringing nonstop.


1. iOS


You can silence calls from unknown callers in iOS 13 and later by going to Settings > Phone and selecting Silence Unknown Callers. Any caller who does not appear in your contacts list, Siri Suggestions, or recent outgoing calls is routed to voicemail. Following that, you will receive a call notification.

Text messages from numbers that are not in your contacts can also be routed to a separate list. Turn on Filter Unknown Senders in Settings > Messages.

Open the Phone app and tap Recent to block a number that called you. Locate the number and tap the Info icon (a lowercase letter I in a circle). Scroll to the bottom and select Block this Caller. If you confirm, that number will go to voicemail if it calls again.

Go to Settings > Phone > Blocked Contacts to block someone in your Contacts list. Scroll down to the bottom and select Add New. This will display your Contacts list; select the people you want to block. You can also access it by going to Settings > Messages > Blocked Contacts > Add New.

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Tap the number or name at the top of the screen to bring up a drop-down menu with three options: audio, FaceTime, and Info. Select Info. Tap Info once more, then scroll down and tap Block this Caller.

If you believe they will spy on you via FaceTime, go to that app, find the most recent FaceTime conversation you had with them, and click the Info icon. You’ll see a screen with call information and actions to take; scroll down to Block this Caller. If it’s a contact, go to Settings > FaceTime > Blocked Contacts. Scroll to the bottom, tap Add New, and then choose which names to block.

In related news, if you suspect you’ve been blocked, symptoms include being directed to voicemail for calls, never seeing the Delivered message appear under your messages, and having your text turn green (rather than blue) when messaging other iOS users.

2. Android


Because Android gives phone manufacturers some leeway in terms of customization, the process for blocking a number may differ from device to device.

In general, you should be able to tap the phone number and either scroll to the bottom of the screen to block the call or tap the ellipsis icon and select Block Number to add a number.

Call Screen is a feature on some Android phones that allows Google Assistant to screen calls from people who are not in your contacts. Select Settings > Spam > Call Screen from the drop-down menu. Select Call Screen, and then select which types of callers you want to screen under Unknown Call Settings (spam, possible fake numbers, and so on).

Google Assistant informs any callers in those categories that you are using a call screener and inquires as to why they are calling. You will be sent a real-time transcript of the chat and will be able to choose whether or not to pick it up.


Call blocking apps are available from wireless carriers. AT&T offers Call Protect for both iOS and Android (Opens in a new window) (available from the AT&T Mobile Security app, as well). You can upgrade to the Plus version for $3.99 per month, which includes a VPN, a personal ID monitor, and theft alerts (if you use an Android device).

Verizon offers a few options(Opens in a new window) for blocking potential scammers as well as specific numbers, all for a fee. T-Mobile has a Scam Shield app (Which opens in a new window) (it was previously known as Name ID) that allows you to block and report scam calls; a premium version costs $4 per line per month.

The FCC now requires all carriers (including landline providers) to participate in an authentication system for real-time calls known as the STIR/SHAKEN protocols (Opens in a new window). That system should already be reducing the number of legitimate-looking spoofed calls, but it won’t eliminate them entirely.

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Most Android smartphones now include a native feature to block a specific number; previously, there was no native feature to do this, but manufacturers have now built a feature into their software UI to allow call blocking by default.

This means that the procedure may differ slightly from device to device; while most UI have the call blocking option in similar places, there may be times when you need to dig a little deeper.


If you have a stock Android smartphone, such as a Pixel or most Motorola smartphones, you must follow the steps in this section to block calls on your device.

You can block calls on these devices in two ways. The first is to open your smartphone and navigate to the Phone app, where you will find the section containing your most recent calls. Now, long press any number and select “Block number,” which will block all calls and messages from that number.

You can also open the Phone app, tap the three dots or the menu icon in the top right corner, and then look for and click the settings option. Now, from the menu, select Call Blocking and enter the phone numbers you want to block.


Samsung is one of the world’s largest smartphone manufacturers, and if you own a Samsung smartphone, you can easily block incoming calls from a specific number. To get rid of unwanted phone calls, follow the steps outlined below.

  • Navigate to the Recent Calls section or find the number you want to block in the Phone app.
  • Open the contact or call records and click the record’s information button.
  • This will open the contact in the application; look for the block option in the bottom right corner.
  • You will no longer receive calls from the contact if you confirm blocking the contact.

You can also get to the Settings section of the phone app by clicking on the three dots in the top right corner. Then, at the top of the list, select the Block Numbers option, which will take you to a page where you can enter the number or select it from the Recent Calls or Contacts list to block future calls and messages.


Xiaomi 12
Xiaomi 12

Xiaomi is a massive manufacturer with India as one of its most important markets. They are one of the most popular budget smartphone brands in India; if you want to block a number on a Xiaomi device, follow the steps below.

  • Launch the Security App and select the Gear or Settings icon in the upper right corner.
  • Turn on the blocklist option by clicking on it.
  • Now, enter the keywords or phone numbers from which you want to block calls and messages.
  • To enable call and message blocking, save the list and exit.

Xiaomi allows you to create custom Block rules to block various incoming messages and calls, which can be very useful for avoiding spam.

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If you are unable to locate the option to block calls on your smartphone, you may want to consider using a third-party application. There are numerous options for blocking calls using third-party apps, but Truecaller and Mr. Number are two of the best.

Truecaller makes it very simple to block numbers on your Android smartphone; simply search for the number in the Truecaller app and then tap on the number to open the profile; once in the Profile of the number that you wish to block, tap on the block button to prevent the contact from calling you.

To block new numbers, you can also use the Spam tab in the Truecaller app. Open the Truecaller app and navigate to the Spam tab. Look for the ‘My Block List’ option and tap on the ‘+’ sign to easily add new numbers to the block list.

CONCLUSION On How to Permanently Block a Number on Android

If none of the other options appeal to you, or if you simply prefer a more user-friendly method of blocking phone calls, a third-party app may be your best bet. We do recommend reading their privacy policies, though, because some of the most popular free call-blocking apps collect and potentially share a lot of information, including your contacts list.

FAQs About Permanently Block Number

Questions Answers
What is Reverse Phone Lookup?Reverse phone lookup is a convenient way to identify unknown callers. Equipped with this service, you can unveil the owner’s name, location, and additional details linked to any phone number. Discover information effortlessly and ensure your safety with reverse phone number lookup tools.
How To Completely Block A Number?To completely block a number in English, follow these steps: 1. Open your phone’s settings.
2. Go to “Phone” or “Call settings.”
3. Navigate to “Blocked numbers” or “Blocked contacts.”
4. Add the desired number to the blocked list. This will prevent all calls and texts from that number.
How To Permanently Block A Number From Calling You?To permanently block a phone number from calling you in English, follow these steps:
1. Open your phone’s settings.
2. Go to “Phone” or “Call settings.”
3. Look for “Blocked numbers” or “Blocked contacts.”
4. Tap on it and select “Add a number.”
5. Enter the number you want to block.
6. Press “Block” or “OK” to confirm.

Can you permanently block a phone number?

Go to Settings > Phone > Blocked Contacts to block someone in your Contacts list. Scroll down to the bottom and select Add New. This will display your Contacts list; select the people you want to block. You can also access it by going to Settings > Messages > Blocked Contacts > Add New.

How do you stop someone from calling you indefinitely?

Call your cell phone provider. They can put a number on hold for you. In the call log, tap the I next to one of their calls. Scroll down and press the block contact button.

Why do blocked calls still get through?

Blocked numbers continue to arrive. There is a reason for this, at least that is what I believe it is. Spammers, use a spoof app to conceal their real phone number from your caller ID. So when they call and you block the number, you’re actually blocking a number that doesn’t exist.


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CEO and Editor at Samsungtechwin | + posts

I am Trevor Eason an entrepreneur, a designer, web developer, and software engineer currently living in Dallas, TX. My interests range from technology to photography. I am also interested in entrepreneurship, gaming, and basketball. I run my own Tech Win Reviews blog. Hope you will join me for all your Samsung and Tech Reviews and recommendations.

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