What this means
The IEEE assigned the MA-L block 74ADCB to New H3C Technologies 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:AD:CB, it is New H3C Technologies Co., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 74ADCB?
74ADCB is registered to New H3C Technologies 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. New H3C Technologies Co., Ltd's block covers 16,777,216 addresses.
What devices use 74ADCB?
Any network device with a MAC address starting 74:AD:CB was manufactured by or for New H3C Technologies Co., Ltd.