What this means
The IEEE assigned the MA-L block A428B7 to Yangtze Memory 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 A4:28:B7, it is Yangtze Memory Technologies Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix A428B7?
A428B7 is registered to Yangtze Memory 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. Yangtze Memory Technologies Co., Ltd.'s block covers 16,777,216 addresses.
What devices use A428B7?
Any network device with a MAC address starting A4:28:B7 was manufactured by or for Yangtze Memory Technologies Co., Ltd..