Was ist international mobile equipment identity?

International Mobile Equipment Identity (IMEI) is a unique identification number assigned to mobile phones and some satellite phones. It is used to identify individual devices and can be used to track stolen or lost devices. The IMEI is a 15-digit number composed of multiple sections that provide information about the device.

The IMEI consists of the following sections:

1. Type Allocation Code (TAC): The first six digits represent the TAC, which is assigned by the Mobile Equipment Identifier Registrar. This indicates the device's manufacturer and model.

2. Final Assembly Code (FAC): The following two digits represent the FAC, which specifies the device's final assembly location.

3. Serial Number (SNR): The next six digits represent the SNR, which is a unique number assigned to each device within the TAC and FAC.

4. Check Digit (CD): The last digit is a checksum digit calculated using a specific algorithm. It helps ensure the integrity of the IMEI number and detect potential errors.

The IMEI can be found printed on the device's packaging, behind the battery, or by dialing *#06# on the phone's keypad. It is also stored in the phone's software and can be accessed through device settings.

In addition to tracking lost or stolen phones, the IMEI can also be used to verify the authenticity of a device. Mobile networks can check a device's IMEI to determine its status, such as blacklisting a stolen device or validating its legal status. However, it is important to note that altering or tampering with an IMEI is illegal in many countries.

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