What this means
The IEEE assigned the MA-L block 28FF5F to HG Genuine Intelligent Terminal (Xiaogan) 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 28:FF:5F, it is HG Genuine Intelligent Terminal (Xiaogan) Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 28FF5F?
28FF5F is registered to HG Genuine Intelligent Terminal (Xiaogan) 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. HG Genuine Intelligent Terminal (Xiaogan) Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use 28FF5F?
Any network device with a MAC address starting 28:FF:5F was manufactured by or for HG Genuine Intelligent Terminal (Xiaogan) Co.,Ltd..