Kindle / Kindle Touch / Kindle Paperwhite

1. Tap the Menu button on the home screen

2. Select Settings

3. Tap the Menu button again

4. Select Device Info

5. Scroll down to find the Wi-Fi MAC Address

Kindle Fire / Kindle Fire HD / Kindle Fire HDX

1. Tap the Settings icon on the home screen

2. Tap on More

3. Tap on Device

4. Scroll down to find the Wi-Fi MAC Address

Fuente: http://howto.adams.edu/index.php/Kindle_-_Finding_MAC_Address