The following digit is the Serial Number, which distinguishes your specific unit from others of the same model. Another frequent layout is simply a plain block of digits, such as 490154206113517, which is how it often appears in software queries.
How to Locate the IMEI Number on Your Smartphone or Tablet
A common visual format looks like 49-015420-611351-7, where the first two digits represent the Reporting Body Identifier and the remaining groups represent the TAC, FAC, and Serial Number. The first eight digits, known as the Type Allocation Code (TAC), identify the model and origin of the device.
Finally, the last digit is a check digit, calculated using the Luhn algorithm to verify the authenticity of the entire number. Checking both sources allows you to verify that the digital match matches the hardware, ensuring the device has not been tampered with.
How to Locate the IMEI Number on Your Smartphone or Tablet
The Visual Format When viewing the number in a settings menu or on a physical label, it usually appears as a continuous string of numbers. This is often the most reliable source for verifying a brand new phone.
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