Registering your Kindle Fire
1. From your Amazon Kindle Fire, head to the home screen and on the top right corner you will see an icon which is of "Settings", tap on the same.
2. Once you tap on the "Settings", you now need to tap on "More" as shown in the below screen capture.
3. Now, tap on the option called "Device" in the "Settings" Page.
4. After this, you now need to go to the option called "Wi Fi Mac Address" where you will get to see the MAC Address of the device.