Every network device in the world has a unique identifier, which is stitched into its hardware at the factory. In smartphones running an operating system Android this identifier is called MAC address (Media Access Control). It consists of 12 hexadecimal characters and is necessary so that routers and access points can correctly identify your gadget on the local network.
Users often need to find this code to configure MAC filtering on a router, diagnose problems with Wi-Fi connection, or when registering a device on a corporate network. However, in modern versions of Android, Google has implemented privacy protection mechanisms that make it difficult to obtain the actual physical address. In this article we will analyze all the current methods for obtaining information, from standard settings to advanced developer tools.
The standard path through system settings
The most obvious and safest way to find the network interface identifier lies in the depths of the system menu. The interface may differ slightly depending on the manufacturer's shell (Samsung One UI, Xiaomi MIUI, Stock Android), but the logic remains the same. You need to go to the settings section responsible for wireless connections.
Usually the path looks like this: go to Settings, select About phone or General information, then find the subsection Status or Status. This is where technical information about the hardware of your device is stored. In some firmware, the path is shorter: Settings → Connections → Wi-Fi → Advanced.
Please note that depending on the operating system version, the field may be named differently. Look for the line with the name Wi-Fi MAC address or Physical Wi-Fi address. If your smartphone has two communication modules (for example, support for two frequency bands), the system may display two different addresses for the 2.4 GHz and 5 GHz bands.
If you cannot find an item in the menu, use the built-in search settings. Simply enter the word "MAC" or "Address" into the search bar at the top of the settings screen.
It is important to understand the difference between the address displayed and what is actually used over the air. Starting with Android 10, the system by default replaces the real address with a random one when scanning networks, but in the settings menu it is most often the factory, permanent identifier that is displayed.
Features of randomization in modern versions of Android
Starting with version Android 10, Google has introduced a MAC address randomization function to improve user security. This means that when you connect to a new Wi-Fi network, your phone can generate a temporary, random address instead of using a permanent factory ID.
This prevents tracking of the user's movements across access points in shopping malls, airports and cafes. However, this creates problems for system administrators who have configured network access strictly according to a white list of physical addresses. In this case, you need to forcefully switch the operating mode.
- 📱 Go to Wi-Fi settings and select the network you are connected to or want to connect to.
- ⚙️ Click on the gear icon or arrow next to the network name to expand details.
- 🔄 Find the item
Privacyor MAC address type. - ✅ Select the option
Use device MAC addressinstead of "Random MAC address".
After changing this parameter, the phone will reconnect to the network using its real, unchanged ID. This address will now be visible to the network administrator and will match what is specified in the "About Phone" section.
⚠️ Attention: Using a random MAC address is the recommended security setting for public networks. Disable this function only if you fully trust a particular network or if it is technically necessary for the operation of the equipment.
Viewing the address through the engineering menu and codes
For more advanced users or in situations where the graphical interface is damaged, there are special service codes. Entering these combinations in the Phone application (dialer) opens hidden diagnostic menus. However, the set of codes highly depends on the processor (MediaTek, Qualcomm, Exynos) and the manufacturer.
One of the universal methods is to use the code ##4636##. After entering the last asterisk, the menu Testingshould automatically open. Select Wi-Fi information (Wi-Fi information). In the window that opens, click the button Wi-Fi Info, where the current interface address will be indicated in the field MAC Address .
For processor-based devices MediaTek code often works ##3646633##, which opens a full-fledged engineering menu. Go to the Connectivitytab, then select Wi-Fi and item NVRAM. Here you can not only view, but also theoretically change the values, although we strongly do not recommend making changes unless absolutely necessary.
What to do if the codes do not work?
On many modern smartphones with pure Android or the shell from Samsung, service codes are blocked by operators or the manufacturer. In this case, try installing a third-party application like "MTK Engineering Mode" from the app store, but only if you have a MediaTek device.
It is worth remembering that engineering menus are intended for service engineers. Incorrect settings in the NVRAM partitions can lead to loss of communication or incorrect operation of the Wi-Fi module.
Using the ADB command line
If you have a computer and USB debugging is enabled, the most reliable way to get accurate technical information is to use the toolkit ADB (Android Debug Bridge). This method works even on devices with a minimal set of settings in the interface and allows you to see the address at the driver level.
First, connect your smartphone to the PC with a cable and make sure that debugging permission is confirmed on the phone screen. Open a command prompt or terminal on your computer in the folder where platform tools are installed. Enter the command to enter the device shell:
adb shellAfter the device command line prompt appears (usually the sign $ or #), enter the command to display information about network interfaces:
ip link showAs a result of execution, you will see a list of all interfaces. Find the line starting with wlan0 (this is the standard name for the Wi-Fi module). Next to it will be a parameter link/ether, followed by the desired combination of 12 characters.
| Command | Description of action | Required rights |
|---|---|---|
ip link show |
Displays the status of all network interfaces | Regular user |
cat /sys/class/net/wlan0/address |
Reads a file with an address directly from the kernel | Regular user |
getprop ro.serialno |
Shows the serial number of the device (not MAC) | Regular user |
su |
Requesting superuser rights (Root) | Availability of root access |
The command via ADB shows exactly the address that the driver is currently using, taking into account all software substitutions and randomization settings.
Third-party applications for network diagnostics
In the store Google Play there are many utilities that automate the process of collecting information about the network. Popular applications like WiFi Analyzer, Fing or Network Analyzer provide detailed reports on the connection. They are convenient because they show not only your address, but also the addresses of the gateway, DNS servers and other devices on the network.
When installing such an application, be sure to pay attention to the requested permissions. To work correctly, diagnostic software requires access to location (since in Android Wi-Fi scanning is tied to geolocation) and access to information about the state of the network.
- 🔍 The application Fing is great for analyzing the entire home network and identifying infringing devices.
- 📊 Network Analyzer provides technical details in a convenient way in tabular form.
- 📡 WiFi Analyzer focuses on frequencies, but also shows the MAC in connection details.
Using third-party software is advisable if the standard settings are hidden by the manufacturer or if you need to conduct a comprehensive diagnosis of signal quality along with an address check.
⚠️ Attention: Avoid installing applications with names like "MAC Address Changer" that promise magic functions. On devices without root access, they cannot change the real hardware address, but only imitate it, often collecting your data in the process.
Problems with definition and common errors
Sometimes users are faced with a situation where the address is displayed as 02:00:00:00:00:00 or consists of only zeros. This is a clear sign of a software failure in the Wi-Fi driver or corruption of the system configuration files. In such cases, software methods may not work correctly.
Another common problem is a mismatch between the addresses on the phone and the router. If you see an address in the list of clients of the router that does not match what is written in the phone settings, it means that the randomization function, which we talked about earlier, is activated. The router sees a temporary address, but a permanent one is written in the phone menu.
In rare cases, especially on custom firmware, partitions NVRAM can be damaged if flashed incorrectly. This results in the device having no unique MAC address at all and being unable to connect to any network. Recovery in this case requires recording calibration data through specialized software on a PC.
☑️ Diagnosing problems with the MAC address
FAQ: Frequently asked questions
Is it possible to completely change the MAC address on Android without Root?
Without superuser rights (Root), it is impossible to change the permanent address hardwired into the hardware. You can only turn on the randomization mode, in which a random address will be visible to external observers, but the system identifier will remain the same.
Why do you need to know your MAC address at all?
This is necessary for setting up access filtering on the router (parental controls, restricting access of outsiders), for statically binding the IP address on the local network and for diagnosing network conflicts.
Does changing the MAC address affect Internet speed?
No, the identifier itself does not affect the data transfer speed. However, if the network has rules for prioritizing traffic for specific devices, changing the address may cause your phone to fall into a group with limited speed.
Where is the Bluetooth MAC address?
It is in the same settings section as the Wi-Fi address, but is usually listed separately as Bluetooth Address. This is a unique identifier for the Bluetooth module, which differs from the Wi-Fi address, even if they are on the same chip.
What will happen if two devices on the network have the same MAC?
An address conflict will occur. Both devices will periodically lose connection, data packets will be lost or delivered to the wrong recipient. The network will become unstable for both parties to the conflict.