The sudden loss of your own number after installing a new MegaFon SIM card in an Android-based smartphone creates difficulties with registering in instant messengers and transferring contacts, but this problem can be solved directly in the device settings without calls and Internet access.
Owners of modern gadgets often rely on synchronization with cloud services, which is why the physical SIM card number may be hidden deep in the settings menu. However, the telecom operator has provided special service combinations and hidden menus that allow you to instantly display data on the screen. In this article we will analyze in detail all the available methods, from using USSD requests to checking the properties of the SIM card in the system.
Do not panic if the number is not displayed in the standard location. Shell interfaces MIUI, One UI or stock Android may differ, but the logic of working with cellular communications remains the same for all devices. We will consider both software methods and physical actions that are guaranteed to help you restore access to your data.
Using USSD service commands
The fastest and most reliable way to find out your details is to send a special request through the dialing interface. Operator MegaFon has introduced a series of short codes that are processed directly on the network side and instantly return a response to the screen of your smartphone. This method is universal and works on absolutely all phone models, regardless of the operating system version or manufacturer.
To obtain information, you need to open the “Phone” application, go to the keyboard tab and enter one of the following combinations. After entering the last number or character, press the call button. The system will automatically redirect the request to the operator's server.
- 📞 Dial
*105#and press call - the main service menu will open with a pop-up window where your number will be indicated. - 📞 Enter
*105*00#is a direct command to display the number on the display without going to additional menus. - 📞 Use the code
*105*5#—an alternative request that also returns data about the subscriber.
Usually the response comes in the form of a pop-up notification (USSD push), which disappears after a few seconds. Carefully write down the numbers or take a screenshot of the screen. If the pop-up window closes too quickly, the information can be found in the notification log or in the call history, where the request may appear as an outgoing call with the appropriate status.
⚠️ Attention: USSD commands only work when there is a cellular signal. If your phone is in Airplane mode or the SIM card is not active, the request will not be processed.
If the USSD code does not work, make sure that there is at least a minimum amount on your balance, although checking the number is usually free, some service menus may require a positive balance to initiate the session.
Viewing the number in the SIM card settings
Operating system Android reads data written directly to the SIM card chip. In most cases, the operator automatically enters the phone number into a special field in the card’s memory when it is activated. This information is available to the user through the system settings menu, but the path to it may vary depending on the manufacturer's shell.
To find this data, you will need to go to the wireless network management section. Modern versions of Android group SIM card settings in a single control center. Navigation may look like this: go to Settings, select Connections or Network and Internet, and then find the section SIM card manager or Mobile network.
In the menu that opens, select the SIM card whose number you want to know (if two are installed). The system will display detailed information about the communication profile. The numbers you are looking for should be in the field labeled “Phone Number” or “MSISDN”. If this field displays “Unknown” or a dash, it means that the operator did not write the number into the card memory when issuing it, and you will have to use other methods.
☑️ Search algorithm in settings
It is worth noting that on some devices with custom firmware the path may be slightly changed. For example, on smartphones Xiaomi information is often duplicated in the About phone -> General informationsection. On devices Samsung you should check the tab SIM card status in the connection settings menu.
Call to another phone or autoinformer
The classic method, which does not require knowledge of complex menus or codes, is to make an outgoing call. If you have another phone, a SIM-enabled tablet handy, or you can ask a friend to dictate the numbers, it only takes a minute. Just call any available phone, and your number will be displayed on the screen of the receiving device.
If there is no second phone nearby, you can use the autoinformer service. The operator MegaFon provides the opportunity to listen to his number through the voice menu. To do this, just call a special short number for the support service or information service.
Try to dial the number 0505. Once connected, the robot operator will offer a menu of voice services. Usually you just need to press the answer button or follow the answering machine prompts to hear your number in voice. This method is especially convenient for people with visual impairments or in situations where it is impossible to look at the screen.
| Method | Cost | Necessary conditions | Speed |
|---|---|---|---|
| USSD request (*105#) | Free | Network signal | Instantly |
| Android settings | Free | Access menu | 1-2 minutes |
| Call a friend | According to tariff | Second phone | 1 minute |
| Personal account | Free | Internet | 2-3 minutes |
⚠️ Attention: When calling support numbers (for example, 0500 or 0505), make sure that your tariff plan does not include a paid minute for connecting to service numbers, although for MegaFon subscribers within the network such calls are usually free.
Check through the MegaFon application
The operator’s digital ecosystem offers the most informative way to manage services through the official mobile application. If your smartphone has Internet access (Wi-Fi or mobile traffic), you can download the utility MegaFon from the store Google Play. After installation and automatic authorization via SMS code, the main page of the application will immediately display your phone number in large font at the top of the screen.
The application not only shows the number, but also allows you to manage it: change the tariff, connect options and control expenses. This is ideal for those who want constant access to their account information. Authorization occurs seamlessly: the system recognizes the SIM card in the device and offers to log in without entering a password by sending a one-time code via SMS.
If automatic login does not work, you can use manual entry. However, a logical circle arises here: to enter, you need to know the number. Therefore, this method is best suited for re-installing the application or for devices where the number has already been saved in the password manager of the browser or the Android system itself.
What to do if the application does not see the SIM card?
If the MegaFon application gives an error during authorization, check which SIM card is selected for mobile data in the phone settings. The application sends a request through the data channel of the card that is active for the Internet. Switch the mobile data to the desired SIM in the network settings and restart the application.
The application interface is regularly updated, so the arrangement of elements may change slightly. However, the subscriber profile block is always in a visible place. Here you can also find a button to copy the number to the clipboard, which is convenient for quick pasting into instant messengers or registration forms.
View in your personal account on the website
An alternative to the mobile application is the web version of your personal account. This method is relevant if you do not want to install unnecessary apps on your phone, but have access to a browser. Go to the official website of the operator and click the login button. As with the application, the system will prompt you to log in via SMS.
After successfully logging into your personal account, your phone number will be displayed in the site header or in the “Profile” section. Full details of calls, payment history and service settings are available here. The web interface often contains more technical information than the mobile version, including the connection date and current balance accurate to the penny.
If you have previously registered in your personal account and saved data in the browser, you may be logged in automatically. Check your browser's autofill settings Chrome or Firefox —the phone number may already be saved there as a login for the operator's website.
⚠️ Attention: The interfaces of personal accounts and mobile applications may change as a result of design updates. If you do not find the number in the usual place, use the search by section or refer to the help inside the service.
Personal account and application are not only a way to find out the number, but also a tool for protection against fraudsters, allowing you to track all connections of paid services in real time.
Search for a number on the package or in the contract
If The phone is low, there is no network, and you urgently need to remember the number, you should turn to physical storage media. When purchasing a SIM card MegaFon you receive a large format plastic card (credit card), from which a standard size chip is broken out. On this plastic base, which many throw away immediately after activation, the phone number is almost always printed in large font.
The number is also duplicated in the contract for the provision of communication services, which is signed in the salon upon registration. If you entered into an agreement, find a copy of it - all your details will be indicated in the header of the document, including passport details and phone number. This is the only way to find out the number absolutely without the use of technical means and the network.
In some cases, the number may be written down in the warranty card or on a receipt from the communication store, if the seller has entered this data to identify the purchase. Check your document archives, especially if you changed your SIM card recently.
Frequently asked questions (FAQ)
Why is it written “Unknown” instead of a number in the phone settings?
This is a common situation that does not mean an error. Telecom operators do not always technically record the phone number in a special memory field of the SIM card (EF-MSISDN) when it is issued. Android reads exactly this field. If it is empty, the system displays "Unknown". In this case, use USSD codes or a call, since the network knows your number, even if the card is “silent” about it.
Is it possible to find out the number if the SIM card is blocked?
If the SIM card is blocked due to an incorrect PIN code, you will not be able to make calls or send USSD requests until it is unlocked. However, the number can be viewed in the phone settings (if it is registered there) or found on the plastic base of the card. If the card is blocked by the operator for non-payment, USSD requests may not go through, but a call to the autoinformer 0505 often remains available.
Is it free to check a number through USSD commands?
Yes, checking your own number through service codes (for example, *105# or *105*00#) with the MegaFon operator is a free service. Money will not be debited from your account for sending a request and receiving a response.
How to find the number if the phone does not turn on?
In this case, software methods are not available. You need to remove the SIM card and insert it into any other working phone. After turning on someone else's device, use the call or USSD request methods. You can also find out the number at a MegaFon communication salon upon presentation of the passport of the SIM card owner.