The situation when you inserted a new operator SIM card Tele2 into your tablet based Android, but forgot to write down the phone number itself, occurs quite often. Unlike a smartphone, where the number is often displayed at the top of the screen or in contacts, tablet interfaces can hide this information, especially if the device is intended only for the Internet.
No need to panic or run to the phone store, as there are many software ways to quickly find out the numbers you need. Subscriber identification possible through system settings, special character combinations, or even through third-party applications if the tablet has voice support calls.
In this article we will analyze in detail all available methods, from the simplest USSD requests to in-depth analysis of the system menu Settings. You can choose the option that best suits your specific device model and current network configuration.
Using USSD requests and service commands
The fastest and most reliable way to find out your data is to send a special request to the operator’s network. To do this, you need to open the application Phone or Dialerif it is preinstalled on your tablet.
Enter the combination *201# and press the call button. This universal network command Tele2 instantly displays a pop-up message with your phone number on the screen. This method works even with a negative balance and does not require a mobile data connection.
If your tablet does not have an interface for dialing numbers, this method may not be directly available. However, if the device supports sending SMS, you can try sending a blank message or text "number" to a short service number, although the command *201# remains priority.
Sometimes the system may not display the pop-up window right away. In this case, check the notifications in the curtain at the top - the response from the network often comes in the form of a standard SMS messages from the service.
⚠️ Attention: If after entering the command you see the error "Invalid MMI code" or the connection is not established, your SIM card may not be activated for voice services or the tablet is operating in "Data Only" mode.
The *201# command is the fastest way to get a number, but requires a voice communication module in the tablet.
Searching for a number in the Android system settings
Operating system Android stores information about the inserted SIM card in deep sections of the menu. The path to this data may differ slightly depending on the version of the OS and the manufacturer's shell (for example, MIUI, OneUI or clean Android).
Most often, the necessary information is located along the path: Settings → About phone → Status or Settings → Connections → SIM manager. In the "Status" section, look for the item "My phone number."
It is worth noting that on many tablets this field may be empty or contain the inscription “Unknown”. This happens because the operator has not recorded the number in the memory itself. SIM chips upon activation, and stores it only in its database (HLR).
In newer versions of Android, starting from 10, the path may look different. Try going to Settings → About device → SIM card information. Information about the service provider and the current network status is often duplicated here.
- 📱 Check the "About phone" section at the very bottom of the list of settings.
- 📡 Look for the "Status" or "Status" subsection SIM cards."
- 🔍 If the number is not listed, try rebooting the device and checking again.
- ⚙️ On some tablets you need to select a specific SIM slot, if there are two of them.
Using the "My Tele2" application
If your tablet has access to the Internet (via Wi-Fi or mobile network), the most informative way is to use the operator’s official mobile application. This will not only show the number, but also allow you to manage the tariff.
Download the application My Tele2 from the store Google Play. When you first start, the system will automatically detect the number of your SIM card inserted into the device and authorize you without entering a password by sending a hidden SMS command.
After logging into your personal account, your phone number will be displayed in the upper corner of the screen or in the "Profile" section. This is one of the most reliable methods, since the information is taken directly from the operator’s database, and not from the device’s memory.
In addition, through the app you can check the current balance, the balance of service packages and connect additional options. This turns the procedure for recognizing a number into a full-fledged connection setup on your device.
⚠️ Attention: For automatic authorization in the application, it is necessary that the mobile data is turned on exactly on the SIM card whose number you want to find out.
What to do if the application does not see the SIM card?
If the application writes “Could not determine the number,” try temporarily disabling Wi-Fi and starting it again. Also make sure that the application has permission to access the phone and SMS in the Android settings.
Checking through the SIM menu and contacts
Some SIM cards Tele2 have a built-in menu that allows you to manage services and view subscriber information. This interface works regardless of the tablet's operating system.
To open the SIM menu, find on the desktop or in the application menu an icon with the name of the operator or the inscription SIM Toolkit. Inside the menu there is often an “Info” or “My number” item that displays data on the screen.
Another simple life hack is to check your contacts book. When activating a new SIM card, the operator often automatically creates a contact with its own number and the name “My number” or “Tele2” in the phone’s memory.
Open the application Contact and look at the first entries in the list. If there is an entry with your number, you can simply copy it or use it to call another device.
| Verification method | Internet needed | Voice module needed | Reliability |
|---|---|---|---|
| USSD command *201# | No | Yes (for dialing) | High |
| My Tele2 application | Yes | No (only data) | Maximum |
| Android Settings | No | No | Average |
| SIM menu | No | No | Average |
☑️ Diagnosing the problem with displaying the number
What to do if the tablet does not support calls
Many tablet models are equipped with a SIM card slot only for Internet access (Data-only). Such devices may not have the Phone application, which makes it impossible to enter USSD commands in the standard way.
In this case, you will have to use alternative methods. Try installing a third-party app for calls from Google Play, for example, Google Voice or any other VoIP clientsthat can access the modem hardware.
However, if the system is hardware blocks voice calls, the best solution is to remove the SIM card and install it in a regular smartphone. By inserting the card into the phone, you can enter a command *201# or look at the number in the settings, and then return the card back to the tablet.
You can also send an SMS with the text “number” to one of the operator’s service numbers if the tablet supports sending messages. The answer will come in the form of an incoming SMS with your data.
⚠️ Attention: Installing third-party applications for calls on tablets without a voice module may not work, since access to the radio module for voice commands is often blocked at the firmware level.
If you often change SIM cards, write down the number immediately after activation in notes or create a “My SIM” contact, so as not to look for it in the future.
Contacting support and other methods
If none of the software methods helped, all that remains is to use the help of the operator. You can call support Tele2 from any other phone by dialing 611 (free from operator numbers) or +7 (922) 000-06-11.
To identify a person, the operator will ask you to name the passport data for which the SIM card was issued, or the code word, if you set one. After checking the data, you will be informed of your phone number.
Information can also be found in the service agreement if you have saved a paper copy or its electronic version. The number is usually indicated on the plastic carrier of the SIM card, which is often kept by users along with the receipt.
Remember that the terms of service and interfaces may change. Always check current commands and support numbers on the operator’s official website or in your personal account.
Contacting support is a guaranteed way to find out the number, but it requires having documents on hand to confirm the identity of the owner.
Why is it written “Unknown” instead of the number in the tablet settings?
This happens because the operator did not write down the number in the field MSISDN on the SIM card itself when it is issued. Android reads the data directly from the card chip, and if it is empty, the system cannot guess the number, even if the network knows it.
Is it possible to find out the Tele2 number via the Internet on the website?
It is impossible to find out the number on the public part of the website without authorization. However, if you log into your personal account using your login (which may be a number, if you remember it) or through Government Services, the number will be displayed in your profile.
Will the *201# command work on a tablet without the ability to make calls?
No, to perform a USSD request you need an application that can send signals to the voice channel of the network. If the tablet does not have a dialer, you will not be able to enter this combination in the standard way.
Is checking a number using the command *201# free?
Yes, checking your own number through the service command *201# is a completely free service for all subscribers Tele2, regardless of the current balance.
What to do if the tablet sees two SIM cards?
Enter the command *201# and select the SIM card whose number you want to find out in the menu that appears. In the Android settings, you can also switch between cards to view information for each of them separately.