What this means
The IEEE assigned the MA-L block 309BAD to BBK EDUCATIONAL ELECTRONICS CORP.,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 30:9B:AD, it is BBK EDUCATIONAL ELECTRONICS CORP.,LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix 309BAD?
309BAD is registered to BBK EDUCATIONAL ELECTRONICS CORP.,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. BBK EDUCATIONAL ELECTRONICS CORP.,LTD.'s block covers 16,777,216 addresses.
What devices use 309BAD?
Any network device with a MAC address starting 30:9B:AD was manufactured by or for BBK EDUCATIONAL ELECTRONICS CORP.,LTD..