device ID (device identification)

A device ID (device identification) is a distinctive number associated with a smartphone or similar handheld device.

A device ID (device identification) is a distinctive number associated with a smartphone or similar handheld device. Device IDs are separate from hardware serial numbers.

Every Apple iPhone, iPod touch and iPad has a unique device ID number associated with it, known as a Unique Device ID (UDID). Apple's device ID is a 40-digit sequence of letters and numbers. Customers can access their device ID numbers in iTunes or by downloading a free app from the Apple App Store. 

Android device IDs are determined during the device's first boot. Users can access their devices' randomly generated Android IDs by downloading a free app from Google Play. These device identification numbers should remain constant for the lifetime of the device unless a factory reset is performed. 

 

This was first published in March 2013

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