In the modern digital ecosystem, every device connected to the network is assigned a unique digital identifier. For mobile devices and modems using SIM cards, this identifier is IMEI (International Mobile Equipment Identity). Users often need to find this code when registering equipment with a provider, blocking a lost device, or setting up MAC address filtering, confusing these concepts.
It is important to clarify right away: classic wired routers connected to the Internet via a provider cable (Ethernet), do not have IMEI code, since they do not have a cellular module. However, if we are talking about 4G/5G routers, mobile hotspots, or USB modems, the identification number is mandatory. This article will discuss finding this code on SIM-enabled devices, as it is critical information for the owner.
There are several proven ways to access this information, ranging from physically inspecting the case to software methods via the web interface. The method you choose depends on whether the device is turned on, whether you have access to the admin panel, and the specific model you have. Let's look at all the options in detail so you can choose the most appropriate one for your situation.
Finding the identification number on the body and documentation
The fastest and most reliable method, which doesn't require power or a computer, is a visual inspection of the device. Telecommunications equipment manufacturers are required to place unique identifiers on a label located on the bottom or back of the enclosure. This label typically contains a serial number (SN), MAC address and, in the case of LTE models, the desired IMEI.
Look for a line labeled "IMEI" or "IMEI/SN." Often the code is a 15-digit sequence. On some models, for example, ZTE or HuaweiA QR code may be located next to the numerical value; scanning it with a smartphone will also provide the necessary information. If the sticker is worn or damaged, you can refer to the original packaging.
β οΈ Attention: The router box often has a duplicate label on one of the side panels. Keep the packaging at least during the warranty periodβthis will simplify the return or exchange process in the event of a defect.
You can also find the necessary information in the documentation included with the device. The product data sheet or warranty card sometimes contain stickers with technical information. However, it's important to remember that if you purchased the device used or lost the box, this method won't work, and you'll have to resort to software verification.
Using the router's web interface
If the device is already connected to the network and configured, its web interface will be the most informative source of data. To access the control system, open any browser and enter the gateway IP address. The most common addresses are 192.168.0.1, 192.168.1.1 or 192.168.8.1 (the latter is typical for mobile 4G routers).
After entering the address, the system will request authorization. The standard logins and passwords (admin/admin) are usually listed on the same sticker as the IMEI. Once inside, you need to find the section responsible for device status or network. Depending on the firmware and brand, the path may look like this: Status β Device Information or Settings β System β About.
The window that opens will display a detailed summary: firmware version, operating time, interface MAC addresses, and, of course, the module identification number. On devices Keenetic, TP-Link And MikroTik This information is often displayed on the dashboard's main page. This allows you to quickly check the data without digging deep into the menu.
βοΈ Data verification in the web interface
Specifics of searching on routers of different brands
Interfaces and information layout vary significantly across manufacturers. Understanding the menu logic of a specific brand can save time. Below is a table showing sample navigation paths for popular 4G equipment manufacturers.
| Brand | Menu section | Subsection | Field name |
|---|---|---|---|
| Huawei | Settings | Device Information | IMEI |
| ZTE | Advanced | Device Settings | Device Info |
| TP-Link | Status | Device Info | IMEI / SN |
| Keenetic | System | Parameters | Serial number (module) |
For example, in equipment Huawei information is often hidden in deep system settings, while ZTE It can be displayed on the main screen after entering a special code or in the basic status. Some operator versions of routers (branded under MTS, Beeline, Megafon) the interface may be truncated and direct access to technical data may be limited.
In such cases, switching to advanced management mode, if available, or using special manufacturer utilities can help. It's also worth considering that dual-SIM routers may display two IMEI numbers (IMEI 1 and IMEI 2), which is normal for dual-SIM devices.
What should I do if the interface is in Chinese?
If you purchased a device intended for the Chinese market, the interface may be entirely in Chinese. In this case, use your smartphone's image translator (Google Translate) or find the section in the menu that contains numbers and Latin charactersβthis is usually the status information.
Software methods and mobile applications
Modern routers often come with mobile management apps such as Huawei AI Life, Mi Home or TetherThis is a convenient way to find your IMEI if you don't have a computer nearby. After connecting your smartphone to the router's WiFi network and adding the device to the app, technical information is usually available on the home screen or in the device settings.
For advanced users working with equipment based on OpenWRT or MikroTik (RouterOS) has console commands. For example, you can use commands in the terminal to query the modem. However, for regular users, this method can be complex and requires command line skills.
There are also specialized modem diagnostic utilities that connect to the device's USB port (if it's a USB dongle) or operate over the network. They can extract complete information from the module, including the SIM card's ICCID, signal strength, and factory identifiers. This is useful for in-depth diagnostics of connection issues.
AT commands and working directly with the modem
If the web interface is unavailable or the device is operating in modem mode, you can use AT commands. These are text commands sent directly to the communication module. This requires a terminal program (such as Putty or HyperTerminal) and knowledge of the port the modem is connected to.
The basic command to query the ID is AT+CGSN or ATIAfter connecting to the modem's COM port and entering this command, the device will return a string containing a 15-digit number. This method is universal and works with virtually any GSM/LTE module, regardless of its housing.
AT+CGSN123456789012345
OK
Be careful when using AT commands if you're unsure of their purpose. Some commands can reset network settings or change the modem's operating mode. However, the IMEI query command is safe and only reads data, without making any configuration changes.
Possible problems and their solutions
Sometimes users encounter a situation where the IMEI number isn't displayed anywhere: it's missing from the sticker (or has been lost), the field in the web interface is empty, and commands don't respond. This could indicate a serious firmware error or, in the worst case, a malfunction of the communication module itself.
If your device detects the SIM card and provides internet access, but doesn't display the IMEI in the interface, try a factory reset. This often restores the correct display of technical information. To reset, you usually need to press the button. Reset on the body and hold it for 10-15 seconds.
β οΈ Attention: A factory reset will erase all your personal configurations: WiFi network name, password, PPPoE settings, and static IP addresses. Be prepared to reconfigure your router to work with your ISP.
If the IMEI field is filled with zeros or invalid characters after flashing, this may indicate an incompatible firmware version was installed. In this case, you need to find the original firmware for your specific device revision and restore it.
Frequently Asked Questions (FAQ)
Is it possible to change the IMEI of a router?
Technically, this is possible for many modems through special engineering modes or utilities, but in most countries, changing the IMEI is illegal. Furthermore, incorrect modification can lead to the device being blocked by the carrier or the module becoming completely inoperable.
What is the difference between IMEI and MAC address?
IMEI β this is the identifier of the equipment itself (model), it is unique for each cellular device. MAC address β is a unique identifier for a network interface. A single router can have one IMEI (for a SIM card) and multiple MAC addresses (for WAN, WiFi, and LAN ports).
What should I do if the IMEI on the sticker and in the interface are different?
This is a warning sign. This discrepancy may indicate that the device was replaced with a module from a different router (due to a repair) or that the device is counterfeit. In this case, registration with the operator may be problematic.
Do I need an IMEI for a regular WiFi router without a SIM card?
No, traditional routers that connect to the internet via a cable (twisted pair) don't have a cellular module, so they don't have an IMEI. Only the MAC address is used for identification.