What this means
The IEEE assigned the MA-L block A4DAD4 to Yamato Denki 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:DA:D4, it is Yamato Denki Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix A4DAD4?
A4DAD4 is registered to Yamato Denki 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. Yamato Denki Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use A4DAD4?
Any network device with a MAC address starting A4:DA:D4 was manufactured by or for Yamato Denki Co.,Ltd..