What this means
The IEEE assigned the MA-L block 54A9D4 to Minibar Systems. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 54:A9:D4, it is Minibar Systems hardware.
Frequently Asked Questions
Who owns MAC prefix 54A9D4?
54A9D4 is registered to Minibar Systems in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Minibar Systems's block covers 16,777,216 addresses.
What devices use 54A9D4?
Any network device with a MAC address starting 54:A9:D4 was manufactured by or for Minibar Systems.