What this means
The IEEE assigned the MA-M block 30BB28A to Bull Creek Technologies. 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:BB:28:A, it is Bull Creek Technologies hardware.
Frequently Asked Questions
Who owns MAC prefix 30BB28A?
30BB28A is registered to Bull Creek Technologies in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Bull Creek Technologies's block covers 1,048,576 addresses.
What devices use 30BB28A?
Any network device with a MAC address starting 30:BB:28:A was manufactured by or for Bull Creek Technologies.