What this means
The IEEE assigned the MA-L block B4FC7D to AVM Audiovisuelles Marketing und Computersysteme GmbH. 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 B4:FC:7D, it is AVM Audiovisuelles Marketing und Computersysteme GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix B4FC7D?
B4FC7D is registered to AVM Audiovisuelles Marketing und Computersysteme GmbH 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. AVM Audiovisuelles Marketing und Computersysteme GmbH's block covers 16,777,216 addresses.
What devices use B4FC7D?
Any network device with a MAC address starting B4:FC:7D was manufactured by or for AVM Audiovisuelles Marketing und Computersysteme GmbH.