In today’s rapidly evolving world of Internet of Things (IoT) technology, smart devices have become an indispensable part of our lives. From the warmth and convenience of smart homes to the efficiency and intelligence of smart cities, IoT technology is transforming our world at an unprecedented pace. However, in this vast and complex IoT network, how can we ensure that each smart device can be accurately identified, tracked, and managed? The answer lies in the IoT IMEI code—this global unique “passport” for smart devices.
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Definition of IMEI Code

The IoT IMEI code, which stands for International Mobile Equipment Identity, is the unique identity identifier for IoT cards. Similar to the IMEI codes of mobile communication devices like phones, the IoT IMEI code is also composed of a unique string of numbers used to uniquely identify and manage devices within the global IoT network.
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Structure of IMEI Code

The IMEI code consists of 15 digits arranged according to specific rules. Specifically, the structure of the IMEI code is as follows:
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The first 8 digits: TAC (Type Allocation Code), used to identify the manufacturer, brand, and model of the device.
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The next 2 digits: FAC (Final Assembly Code), used to identify the production factory of the device.
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The next 6 digits: SNR (Serial Number), used to identify the production batch and uniqueness of the device.
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The last digit: CD (Check Digit), used to verify the accuracy of the IMEI code.
It is worth noting that the IMEI code may sometimes be extended to 17 digits, but the core 15 digits always serve as the unique identifier for the device.
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Functions and Applications of IoT IMEI Code

The IoT IMEI code plays a crucial role in the IoT world. It is not only the unique identity identifier for devices but also the bridge connecting devices to the IoT network. Specifically, the applications of the IoT IMEI code include:
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Device tracking and management: Through the IoT IMEI code, device manufacturers and operators can track the usage and operational status of devices in real-time, ensuring that devices operate normally and are maintained promptly.
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Security assurance: The IoT IMEI code can be used for device anti-theft and privacy protection. When a device is stolen or lost, users can report the IMEI code to the operator to lock the device from the IoT network, preventing unauthorized use by others.
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Data analysis and optimization: By collecting device data through the IoT IMEI code, companies can conduct deeper market analysis and optimize production strategies, enhancing product competitiveness and user satisfaction.
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How to Query IMEI Code

There are various methods to query the IoT IMEI code, depending on the type and brand of the device. Generally, the IoT IMEI code can be obtained through the following methods:
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Device label: Some IoT devices have the IMEI code printed directly on their casing or label.
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Device settings: For smart devices, the IMEI code can be queried through their settings interface or related applications.
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Operator inquiry: If the device is already connected to the IoT network, the operator can be consulted to obtain the device’s IMEI code.
The IMEI code, as the unique identity identifier for mobile devices, plays an important role in ensuring device security and enhancing user experience. Understanding the definition, structure, functions, and methods of obtaining and querying the IMEI code helps us better manage and use our mobile devices.

Focusing on Overseas IoT Cards
