What this means
The IEEE assigned the MA-L block 6C391D to Beijing ZhongHuaHun Network Information center. 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 6C:39:1D, it is Beijing ZhongHuaHun Network Information center hardware.
Frequently Asked Questions
Who owns MAC prefix 6C391D?
6C391D is registered to Beijing ZhongHuaHun Network Information center 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. Beijing ZhongHuaHun Network Information center's block covers 16,777,216 addresses.
What devices use 6C391D?
Any network device with a MAC address starting 6C:39:1D was manufactured by or for Beijing ZhongHuaHun Network Information center.