What this means
The IEEE assigned the MA-M block FCA47A4 to HOOC AG. 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 FC:A4:7A:4, it is HOOC AG hardware.
Frequently Asked Questions
Who owns MAC prefix FCA47A4?
FCA47A4 is registered to HOOC AG in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. HOOC AG's block covers 1,048,576 addresses.
What devices use FCA47A4?
Any network device with a MAC address starting FC:A4:7A:4 was manufactured by or for HOOC AG.