What this means
The IEEE assigned the MA-M block 78D4F16 to Guangzhou Kingray information technology 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 78:D4:F1:6, it is Guangzhou Kingray information technology Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 78D4F16?
78D4F16 is registered to Guangzhou Kingray information technology Co.,Ltd. in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Guangzhou Kingray information technology Co.,Ltd.'s block covers 1,048,576 addresses.
What devices use 78D4F16?
Any network device with a MAC address starting 78:D4:F1:6 was manufactured by or for Guangzhou Kingray information technology Co.,Ltd..