
It will look similar to 00:ab:23:4e:55:bb. The Physical Address is your MAC address.

If you plan to register your devices via the website (click on the Register Devices button under Network Devices), you will need to locate the MAC address of your device. A MAC (Media Access Control) address is the hardware address of the Network Interface Card (NIC) in your personal device.

personal desktop or laptop computers, tablets, smartphones, TVs, streaming devices, etc.) that need a connection to the Internet requires registration of your hardware or MAC address.
