What this means
The IEEE assigned the MA-L block 905D7C 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 90:5D:7C, it is New H3C Technologies Co., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 905D7C?
905D7C 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 905D7C?
Any network device with a MAC address starting 90:5D:7C was manufactured by or for New H3C Technologies Co., Ltd.