What this means
The IEEE assigned the MA-L block 302BDC to Top-Unum Electronics 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 30:2B:DC, it is Top-Unum Electronics Co., LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 302BDC?
302BDC is registered to Top-Unum Electronics 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. Top-Unum Electronics Co., LTD's block covers 16,777,216 addresses.
What devices use 302BDC?
Any network device with a MAC address starting 30:2B:DC was manufactured by or for Top-Unum Electronics Co., LTD.