What this means
The IEEE assigned the MA-L block 0020BD to NIOBRARA R & D CORPORATION. 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 00:20:BD, it is NIOBRARA R & D CORPORATION hardware.
Frequently Asked Questions
Who owns MAC prefix 0020BD?
0020BD is registered to NIOBRARA R & D CORPORATION 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. NIOBRARA R & D CORPORATION's block covers 16,777,216 addresses.
What devices use 0020BD?
Any network device with a MAC address starting 00:20:BD was manufactured by or for NIOBRARA R & D CORPORATION.