What this means
The IEEE assigned the MA-L block 74DDCB to China Leadshine 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 74:DD:CB, it is China Leadshine Technology Co.,Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 74DDCB?
74DDCB is registered to China Leadshine Technology 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. China Leadshine Technology Co.,Ltd's block covers 16,777,216 addresses.
What devices use 74DDCB?
Any network device with a MAC address starting 74:DD:CB was manufactured by or for China Leadshine Technology Co.,Ltd.