What this means
The IEEE assigned the MA-L block 30DF8D to SHENZHEN GONGJIN ELECTRONICS CO.,LT. 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:DF:8D, it is SHENZHEN GONGJIN ELECTRONICS CO.,LT hardware.
Frequently Asked Questions
Who owns MAC prefix 30DF8D?
30DF8D is registered to SHENZHEN GONGJIN ELECTRONICS CO.,LT 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. SHENZHEN GONGJIN ELECTRONICS CO.,LT's block covers 16,777,216 addresses.
What devices use 30DF8D?
Any network device with a MAC address starting 30:DF:8D was manufactured by or for SHENZHEN GONGJIN ELECTRONICS CO.,LT.