What this means
The IEEE assigned the MA-L block B4B88D to Thuh Company. 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:B8:8D, it is Thuh Company hardware.
Frequently Asked Questions
Who owns MAC prefix B4B88D?
B4B88D is registered to Thuh Company 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. Thuh Company's block covers 16,777,216 addresses.
What devices use B4B88D?
Any network device with a MAC address starting B4:B8:8D was manufactured by or for Thuh Company.