What this means
The IEEE assigned the MA-L block 000B9B to Sirius System Co, Ltd.. 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:9B, it is Sirius System Co, Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 000B9B?
000B9B is registered to Sirius System Co, Ltd. 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. Sirius System Co, Ltd.'s block covers 16,777,216 addresses.
What devices use 000B9B?
Any network device with a MAC address starting 00:0B:9B was manufactured by or for Sirius System Co, Ltd..