Privacy in the digital age is becoming an increasingly valuable resource, and many smartphone owners are looking to limit outsiders' access to their contact information. Hiding your Caller ID is an effective way to protect your personal space from unwanted calls or maintain anonymity during business negotiations. In the Android operating system, especially in the One UI shell from Samsung, this process is implemented quite flexibly, but users often encounter confusion in the menu or are not aware of the existence of special codes.
There are several methods for blocking the display of your number on the screen of your interlocutor, each of which has its own characteristics and use cases. You can disable caller ID temporarily for one call, set up a permanent ban through the system menu, or use the services of a telecom operator. Understanding the differences between these methods will allow you to choose the most suitable option for your situation without the need to install third-party software.
In this article we will analyze in detail all the available methods for hiding a number on Samsung devices, including the nuances of working with modern versions of Android. We will consider not only the standard paths in the settings menu, but also specific commands, as well as the reasons why the selected option may not work at a particular time.
Using USSD codes for one-time blocking
The fastest way to hide your number for a specific call is to use special USSD commands that are sent directly to the operator’s network before dialing the main number. This method is ideal for situations where you only need to maintain anonymity in one case, without changing global phone settings. Unlike system settings, the code only applies to the current call.
For Samsung devices and most other Android smartphones, the code is standard #31#. To use this feature, you need to open the standard Phone application, enter a combination of characters, then immediately dial the number of the person you are calling and press the call button. The system will automatically process the prefix and connect you to the interlocutor, hiding your ID.
It is important to note that the effectiveness of this method depends entirely on the support of the service from your mobile operator. Some providers may block such requests by default or require you to first connect to the Caller ID service.
- 📞 Enter
#31#before the phone number for one-time hiding. - 📶 Make sure you have a network signal before sending the request.
- ⚠️ The code may not work when calling emergency services (102, 103, 112).
- 🌍 In some regions or for certain operators, the code may differ (for example,
*31#).
Before an important call, check the code on a friend’s number or a second phone to make sure that the anonymity is valid is saved.
⚠️ Attention: If after dialing the code you hear beeps, but the call is dropped, this means that the operator is blocking the transmission of the hidden number. In this case, you need to contact the support service of your tariff plan.
Permanently hiding the number through Samsung settings
If your goal is to make the number hidden by default for all outgoing calls. calls, it is more advisable to use the built-in functions of the operating system. In Samsung smartphones, the path to this setting may differ slightly depending on the version of the One UI shell and the device model, but the logic remains the same. This method allows you not to remember the codes and not enter them manually each time.
To activate the function, you need to go to the device settings menu. In modern versions of Android, this item is often hidden within more general categories. be careful when navigating through the menu. After finding the desired switch, the system will send a request to the operator’s network to activate the service.
The setup process takes no more than a minute, however, it is worth considering that changing the parameters may require rebooting the device or re-registering in the network to take effect. If the switch returns to its original position or becomes gray (inactive), this indicates a conflict of settings or lack of support for the function on the provider’s side.
☑️ Setting algorithm in Samsung
The menu interface may vary, but key terms such as “Caller ID” or “Caller ID” remain unchanged. In some cases, the system will offer three options: “Show number”, “Hide number” and “Default (network settings)”. Selecting the last item will return control of the parameter to your operator. communications.
Interface differences in different versions of One UI
Samsung regularly updates the visual style and menu structure of its proprietary One UI interface, which often leads to changes in the location of call control items. Users of older models, such as the Galaxy S10 or Note 10, may see the menu differently than owners of the current flagships of the Galaxy S23 or S24 series. These differences will help you find the option you need faster.
In versions of One UI 3.0 and 4.0 (based on Android 11 and 12), call settings are often grouped under the general heading “Additional services”. When you go to this section, the phone may download data from the network for a few seconds, which is normal behavior. In newer versions, such as One UI 5.0 and 6.0, some functions have been transferred or changed. renamed to simplify navigation, and the menu has become more minimalistic.
If you cannot find the “Caller ID” item in the specified location, try using the search in the settings. By entering the request “number” or “caller”, the system itself will indicate the path to the desired switch. This is especially true for devices that have been customized by mobile operators, where the standard menu can be changed.
| One UI version | Menu location | Item name | Features |
|---|---|---|---|
| One UI 2.x | Settings → Additional functions | Caller ID | Classic menu |
| One UI 3.0 - 4.0 | Phone → Settings → Additional services | Number display | Network download required |
| One UI 5.0+ | Phone → Settings → Hide number | Hide number | Simplified interface |
| Custom firmware | Depends on the operator | May be absent | Code required USSD |
Why might the menu look different?
Manufacturers can change the standard Android interface by adding their own skins. In the case of Samsung, different sales regions (Europe, Asia, USA) may have slightly different versions of One UI, which affects the names of menu items.
Using carrier applications
Modern mobile operators are increasingly transferring service management to their own applications, which become the central hub for the subscriber. If the phone’s system settings do not give the desired result or the menu item is blocked, the most reliable way is to use the official application of your operator. This allows you to manage the service directly at the network level, ignoring the limitations of the smartphone.
In the subscriber’s personal account, accessible through a browser or application, there is usually a “Services” section. “Call settings.” Here you can find the option “Caller ID” or “Hidden number.” Activating the service through this channel ensures that your number will not be displayed to the interlocutor, regardless of what device you are making the call from.
The advantage of this method is the possibility of detailed control: you can set a schedule for the service, activate it only for certain groups of contacts, or temporarily disable it using a timer. In addition, the application often displays the status of the service in real time. time, which eliminates uncertainty.
- 📱 Download the official application of your operator from Google Play.
- 🔐 Log in using your phone number or personal account login.
- 🛠 Find the “Services” section and select ID management.
- ✅ Activate the option and wait for SMS confirmation.
⚠️ Attention: Some operators can provide the number hiding service only on a paid basis or within certain tariff plans. Check the terms of your tariff before activation.
Specifics of working with virtual SIMs and instant messengers
In the era of VoIP and virtual telephony, the concept of “phone number” has expanded. It is impossible to hide a number when calling through instant messengers (WhatsApp, Telegram, Viber) or virtual SIM cards (Google Voice, Skype) using standard Android methods, since these applications use Internet protocols, not cellular communication channels.
For messengers, privacy settings are carried out within the application itself. For example, in WhatsApp you can prevent your number from being shown on your profile to strangers, but when you make a voice call, the caller will still see your contact number if it is saved in their address book or if the privacy settings do not restrict this. In Skype or Google Voice, you can purchase an additional number or use the masking function, if provided by the subscription.
It is important to distinguish between hiding a number in traditional telephony (GSM/LTE) and anonymity on the Internet. The Android settings discussed above only affect regular voice calls via a SIM card. To protect data in instant messengers, you need to study the privacy settings of each specific application separately.
Standard Android settings do not affect the display of numbers in instant messengers and Internet telephony; they require separate settings within applications.
Possible problems and solutions
Despite the simplicity of the procedure, users often encounter situations when the number is not hidden or the settings are not saved. The most common reason is blocking of the service on the operator's side. Many providers by default prohibit hiding a number to combat fraud and spam, requiring a written statement or connecting a paid option.
Another common problem is a conflict in software settings. If you've previously used third-party apps for calling or network settings, they may have reserved call control rights. In this case, switching in the system menu may have no effect. It is also worth considering that when roaming, number hiding services may not work correctly due to the peculiarities of interaction between different networks.
If all else fails, it is recommended to reset the call settings. This will return the telephony settings to factory defaults, after which you can try setting up hiding the number again. As a last resort, completely rebooting the device or removing and reinserting the SIM card will help.
Why are settings reset after a reboot?
If the selected “Hide number” option is not saved after rebooting the phone, this means that the operator’s network is forcing it back to the default value. Most likely, this service is disabled or not supported on your tariff. You need to contact the operator to clarify the conditions.
Is it possible to hide a number if it is identified by an identifier application?
Identifier applications (like GetContact or NumBuster) can show your number even when hidden, if it is in the databases of other users. Hiding a number through the phone settings prevents it from being displayed on the call screen, but does not delete information from third-party databases.
Does hiding a number affect the cost of the call?
The function of hiding a number itself is usually free if it is included in the tariff. However, if the operator requires the connection of a separate paid service “Anti-identifier”, then funds may be debited from your account according to the tariff plan. The cost of the call itself does not change.