What this means
The IEEE assigned the MA-L block 000414 to Umezawa Musen 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 00:04:14, it is Umezawa Musen Denki Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 000414?
000414 is registered to Umezawa Musen 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. Umezawa Musen Denki Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 000414?
Any network device with a MAC address starting 00:04:14 was manufactured by or for Umezawa Musen Denki Co., Ltd..