What this means
The IEEE assigned the MA-L block 002258 to Taiyo Yuden 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 00:22:58, it is Taiyo Yuden Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 002258?
002258 is registered to Taiyo Yuden 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. Taiyo Yuden Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 002258?
Any network device with a MAC address starting 00:22:58 was manufactured by or for Taiyo Yuden Co., Ltd..