What this means
The IEEE assigned the MA-M block 5491AF4 to DDPAI 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 54:91:AF:4, it is DDPAI Technology Co.,Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 5491AF4?
5491AF4 is registered to DDPAI 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. DDPAI Technology Co.,Ltd's block covers 1,048,576 addresses.
What devices use 5491AF4?
Any network device with a MAC address starting 54:91:AF:4 was manufactured by or for DDPAI Technology Co.,Ltd.