How to Block a Phone Number on Xiaomi: All Ways to 2026

Why to block numbers on Xiaomi smartphone and when it is necessary

Spam calls, intrusive collectors or former acquaintances – the reasons for blocking a number on Xiaomi can be very different. Modern smartphones based on MIUI offer several built-in mechanisms for this, but not all users are aware of their existence. Moreover, some methods work even without installing third-party applications, which is especially true for owners of low-end models of Redmi or POCO with limited memory.

It’s important to understand that locking at the phone and operator level are two different processes. The first simply hides incoming calls and messages from the blocked subscriber, the second completely stops them from delivering to your device. In this article, we will discuss both approaches, as well as the nuances for different versions of MIUI (12 to 14) and popular Xiaomi models, including the Redmi Note 12, POCO X5 and Mi 11.

If you encounter mass spam calls, we recommend first checking if you have Do Not Disturb feature enabled in your audio settings – sometimes it accidentally activates and creates the illusion of blocking. Also pay attention to Settings → Applications → Permissions → Calls where you can restrict access to phone functions for suspicious programs.

Method 1: Locking through the call log (the fastest method)

This is a basic method that works on all Xiaomi smartphones regardless of the MIUI version. Its main advantage is speed: you do not need to search for a number in contacts or adjust additional parameters.

Instructions:

1. Open the Phone app (the tube icon on the desktop).
2. Go to the Journal tab (bottom of the screen).
3. Find the number you want to block and click on it.
4. In the window that opens, select Block (the icon of the forbidden circle).
5. Confirm the action by pressing OK in the dialog box.

After that, all incoming calls and SMS from this number will automatically deviate, the number will be added to the blacklist, which can be viewed by Later in the phone settings.

Number not stored in contacts as important

It's not a bank number or a support number.

You don’t expect a call back from this person.

You have blacklist sync enabled with your Mi Account (if necessary)

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Note that if the number is hidden (displayed as "Unknown" or "Private"), you will not be able to block it through the log, in which case you will need to use other methods described below.

Method 2: Locking through MIUI security settings

This method is suitable for those who want to manage a blacklist centrally or block a number that is not in the call log, and it also allows you to configure additional parameters, such as blocking SMS or forwarding blocked calls to voicemail.

Step-by-step:

1. Open the settings (cog icon on the desktop).
2. Go to the Appendix section → Security → Blacklist.
3. Click Add to the blacklist (the + icon in the upper right corner).
4. Select the source of the number: 📞 From the magazines - if the number is in the history of calls 📇 Contacts – if the number is saved in the phone book ➕ Manually – if you need to enter the number yourself

Select a number and confirm the lock.

You can also set up the menu:

• 🔔 Notifications of blocked calls (on/off)
• 📤 Synchronize the blacklist with your Mi Account (useful when changing your phone)
• 🔄 Automatic deletion of log entries after blocking

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If you are manually locking the number, make sure you enter it in an international format (e.g. +79123456789 instead of 89123456789).

Method 3: Blocking through the Messages app

If you are not so much a caller as SMS-Spam, you can block the number right in the standard Messages app, which works independently of the call blocking, meaning you can allow calls but disable messages (or vice versa).

How to do this:

1. Open the Messages app.
2. Find a dialogue with an unwanted subscriber and open it.
3. Click on the three dots in the upper right corner and select Details.
4. In the contact profile that opens, click Block.
5. Choose what to block exactly: 📞 Just calls. 💬 Only messages. 🚫 All (calls and) SMS)

Once blocked, all messages from this number will be automatically deleted and will not appear in the Spam folder. However, they will remain in the hidden Locked folder, which can be found in the application menu (three lines in the upper left corner).

Every day.

Several times a week

Rarely (once a month or less)

Never got one.

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Method 4: Blocking through a communications operator (at the network level)

If the built-in MIUI doesn't work (e.g., a spammer uses different numbers or hides his), you can lock the subscriber at the operator level, which is more reliable because it filters before the call reaches your phone, but it also has disadvantages:

• ⏳ Delayed activation (can take up to 24 hours)
• 💰 Paid service for some operators (for example, MTS – 3 rubles / day)
• 📱 It doesn't work for hidden numbers.

Instructions for popular operators:

Important: Operator-level locking doesn't sync with the MIUI blacklist. If you change your phone or reinstall your firmware, the network-level list of locked numbers will remain active, but the local blacklist on your device won't.

Method 5: Use of third-party applications (for advanced features)

Standard MIUI tools are suitable for basic blocking, but if you need additional features – for example, keyword filtering in SMS, blocking entire regions or automatically adding spammers to a blacklist – it’s worth considering third-party apps.

Top.-3 Applications to block calls on Xiaomi:

• 🛡️ Truecaller - detects spammers from the database, blocks hidden numbers, supports Russian.
• 🔍 Hiya - specializes in blocking fraudsters, integrates with system settings.
• 📵 Blacklist Plus – allows you to create mask lock rules (for example, all numbers with code 495.

Installation and configuration (as an example of Truecaller):

1. Download the app from Google Play.
2. Run it and allow access to Contacts, Call Log and SMS.
3. In the menu, select Block → Add to the blacklist.
4. Select the source of the number or enter it manually.
5. Activate the option to block similar numbers if you want to disable calls from similar numbers (for example, +79123456789 and +79123456780).

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Third-party applications may conflict with the built-in MIUI lock. If the blacklist system settings stop working after the Truecaller or Hiya installation, disable duplicate functions in one of the applications.

Warning: Some anti-spam apps (especially Chinese ones) may collect your contacts and call history for analysis.

What to do if the lock is not working: common problems and solutions

Sometimes even after you add a number to the blacklist, the calls keep coming in, and here are the most common reasons and ways to fix them:

• 🔄 The number is changed by the spammer: Scammers often use spoofing, in which case only blocking at the operator level or an application like Truecaller with a database of spammers will help.
• 📵 Resetting phone settings: After resetting to factory settings, blacklist MIUI It's cleaned. You can restore it through a backup to Settings. → Mi Account → Cloud.
• 🔕 Application conflict: If you have multiple anti-spam apps installed, they can interfere with each other.
• 📡 Network problems: With a weak operator signal, the network-level lock may not work. 4G/LTE customized SIM-map.

If none of the methods helps, try the extreme option - the "Contacts Only" mode:

1. Go to Settings → Applications → Phone → Call Lock.
2. Enable the contact only option.
3. Now your phone will only accept calls from numbers saved in the address book.

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Before you turn on Contact Only, make sure that all important numbers (bank, work, relatives) are saved in the phone book.

How to unlock a number on Xiaomi and restore access

If you accidentally block the number you want or just change your mind, you can return it to the list of allowed in a few seconds, depending on how the subscriber was blocked:

For numbers blocked through MIUI:

1. Open Settings → Applications → Security → Blacklist.
2. Find the number in the list and swipe it to the left (or click on the three dots next to it).
3. Select Remove from the blacklist.

For numbers blocked through the operator:

• 📱 MTS: send SMS with the text of the Block number on 111
• 📱 Beeline: Call me on *110*710#
• 📱 MegaFon: Use a personal account or USSD-team *130#

For numbers blocked through third-party applications:

Open the app (like Truecaller), go to Lock or Blacklist, find the number and click Unblock.

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If you unlocked the number but still don’t get calls, check if the “Do Not Disturb” or “Contact Only” mode is activated in the phone settings.

FAQ: Frequent questions about locking numbers on Xiaomi