What is an IMEI number and why should you care? - Android Authority

Here's how to check your IMEI number on your Android smartphone, what's it used for, and why you should never share it with strangers.

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What is an IMEI number & what is it used for

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Lost your Phone? You Can Still Retrieve its IMEI Number - Digital Inspiration

What is IMEI number, and why is it important?

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A brief guide to IMEI, ESN, and other numbers on your phone - Swappa Blog

What is an IMEI number?