How to find a phone number on Xiaomi

Possession of a modern smartphone implies constant communication with the outside world, and a key element of this communication is the use of a smartphone. SIM-However, owners of Xiaomi brand devices, including the popular Redmi series and POCO, Often, you are faced with a situation where your own number SIM-This can happen when you use a new SIM, buy a used device, or reset when the subscriber's profile information is not stored in the contacts' memory.

Users don't need to search for paper SIM card packaging or call a friend to find out their numbers. MIUI And its global version of HyperOS provides built-in tools to display this information. USSD-queries that work at the carrier level, regardless of the firmware version. In this article, we will take a detailed look at all available methods, from standard settings to engineering codes.

It is important to understand that the way the data is displayed may vary slightly depending on the regional version of the software and the specific carrier. SIM-This makes it impossible to display it through the standard About Phone menu, and in such cases, alternative methods come to the rescue, which we will discuss below, so that you are guaranteed to get the necessary information.

Viewing the number through system settings

The most obvious and secure way to find out your data is to look at the system menu of the device. The MIUI shell interface is designed to give the user full access to information about the connected communication modules. To do this, you need to go to the main settings menu and find the section responsible for the device parameters, which is usually located at the top of the list or is available through a search by settings.

In the menu you will find detailed technical information about the processor, Android version and, most importantly, about the processor. SIM-If two SIM cards are installed on the phone, the system will display the data for each of them separately, and the phone number will be indicated under the operator name or in the "Phone Number" field. If instead of numbers you see a dash or the inscription "Unknown", this means that the operator did not transfer this data to the profile of the card when registering in the network.

It's worth noting that different versions of firmware can have different paths. For example, on global versions, the path often looks like Settings. → The phone. → General, whereas in Chinese assemblies, menus can be organized differently, and information can be duplicated in the control section. SIM-maps where you can set the priority of calls and mobile Internet.

Use of the USSD-codes

When the GUI doesn’t give an answer, help comes. USSD-These are special commands that go directly to the carrier's server, bypassing the smartphone interface, and they even work on push-button phones and don't require Internet access. For each mobile operator there is a unique code that allows you to instantly display the number on the screen or get it in the incoming SMS-message.

Enter the combination in the Phone app just like the normal number to call, and press the call button. The system automatically recognizes the command and sends the request. Below is a table with the most popular codes for the main operators operating in the region:

Note that some commands may be paid or require confirmation of action. There are also universal codes such as *185# or *189# that can work for a number of operators, but their functionality is not 100% guaranteed. If after you enter the command you receive a message about an error in the execution of the request or the code did not work, try the following method.

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Save your operator’s code in notes or send yourself to the messenger so that in an emergency situation you do not search for it on the Internet.

Checking through the "Security" application

A unique feature of Xiaomi smartphones is the presence of a powerful built-in system application "Security". It combines the functions of antivirus, memory cleaner and manager. SIM-This is where the information is often hidden, especially if the standard "About Phone" menu does not display the data correctly.

To access the data, run the Security app (green shield icon"SIM-maps” or “Management SIM". This displays detailed traffic usage statistics and minutes, as well as full data on the connected cards, and reads information directly from the chip, which increases the chances of seeing a number even if it is not registered in a standard profile.

In this section, you'll see a list of all active SIM cards, and if you click on a particular card, you'll see its full name, operator, and in many cases, phone number, and if you see "Unknown" here, then the problem is deeper, either in the SIM card itself or in the operator's network settings, and then you just have to call for support or use social verification methods.

Social methods and messengers

If the technology doesn't work, you can always use the simplest and most reliable method, social engineering, and you don't have to be a hacker, you just have to ask a friend, colleague or relative to dictate the number they had when you called, and it works seamlessly if you have a balance on your phone or a tariff with free minutes.

An alternative and very convenient way is to use instant messengers such as WhatsApp, Telegram or Viber, which automatically read the number when registering. SIM-Even if you haven't signed up yet, the process of entering a number often shows it in the input field with pre-filled numbers. In Telegram, for example, you can create a channel or chat with yourself ("Favorites"), and your profile will indicate your current number.

Another option is to dial your carrier's support number from your mobile phone, and call center operators see the number from which the call came, and they can dictate it to you after you have passed the identification procedure, and be prepared to give you your passport information or code word if it was set when you bought the SIM card.

⚠️ Note: Never report codes from SMS-Not to mention the caller, even if he is a bank employee or a telecom operator.

What to do if the number is not determined

It's quite common for a phone to write "Unknown Number" on all menus, not because it's a Xiaomi smartphone, but because when a mobile operator releases a SIM card, it doesn't write it down in a special chip memory field, and it can't physically read what's not there.

In this case, the only official solution is to contact the salon or call the operator's support service, and an employee can update your SIM card profile remotely or ask you to visit the office to change the card to a new one, where the number will be registered correctly, sometimes it helps to simply restart the device after re-installing the SIM card, but this rarely works.

It's also worth checking if the SIM card is inserted correctly. If contacts are contaminated or the card is damaged, the phone can see the module's presence but not read the data. Gently wipe the SIM card's contacts with a soft cloth and make sure it sits tightly in the tray. Don't use homemade nano-sim adapters, as they often cause poor contact.

Engineering menu and hidden settings

For advanced users, there is an engineering menu that displays all the technical information about the radio module, which can be logged in via a special debugging menu or by typing the code ##4636## in the call, but be careful: changing the settings in this section can lead to unstable network operation.

In the menu that opens, select "Phone Information." Scroll down to "State of the Union." SIM-This may display technical identifiers such as IMSI and ICCID. Phone number (MSISDN) It can also be on this list if it is readable by the system. MSISDN empty, so the number is not really written on the SIM card.

Using third-party apps from Google Play that promise to show a number is mostly useless. They use the same system APIs as the standard settings menu. If Android doesn't see the number, the app won't show it either. Moreover, such programs often require unnecessary permissions and contain advertising.

⚠️ Note: In the engineering menu, do not change the values of the fields "Preferred network type" or "Radio Band" if you do not understand what they are responsible for.

Frequently Asked Questions (FAQ)

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The fastest way to find out a number on Xiaomi is to enter USSD-Operator code (e.g. *100# for MTS) as it does not depend on the phone settings.