What this means
The IEEE assigned the MA-L block 000B4B to VISIOWAVE SA. 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 00:0B:4B, it is VISIOWAVE SA hardware.
Frequently Asked Questions
Who owns MAC prefix 000B4B?
000B4B is registered to VISIOWAVE SA 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. VISIOWAVE SA's block covers 16,777,216 addresses.
What devices use 000B4B?
Any network device with a MAC address starting 00:0B:4B was manufactured by or for VISIOWAVE SA.