MAC address is simply a unique identifier code that is used to link our services with your device. The MAC address always takes on the form 00:1A:79:XX:XX:XX (when you follow our instructions) The MAC address can be found by following the setup instructions for your device. It usually requires you to download an app. For some Multi-media boxes and MAG devices, the MAC address can be found under device settings or as an actual physical sticker on the box. You will need to provide the MAC address when placing your order for a subscription..