Is Secure.ANDROID_ID unique for each device?

android uuid uniqueidentifier
FoamyGuy picture FoamyGuy · Jan 25, 2011 · Viewed 105.9k times · Source

I am using this call:

Secure.getString(getApplicationContext().getContentResolver(), Secure.ANDROID_ID);

To get a UID for the device. I think I am getting the same ID from multiple devices though. Should this be possible?

The ID in question is: 9774d56d682e549c and apparently there is an issue with several devices returning this ID http://code.google.com/p/android/issues/list?cursor=10603&updated=10603&ts=1295993403

Answer

ninjasense picture ninjasense · Jan 25, 2011

Check into this thread,. However you should be careful as it's documented as "can change upon factory reset". Use at your own risk, and it can be easily changed on a rooted phone. Also it appears as if some manufacturers have had issues with their phones having duplicate numbers thread. Depending on what your trying to do, I probably wouldnt use this as a UID.

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