What this means
The IEEE assigned the MA-L block 000401 to Osaki Electric 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 00:04:01, it is Osaki Electric Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 000401?
000401 is registered to Osaki Electric 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. Osaki Electric Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 000401?
Any network device with a MAC address starting 00:04:01 was manufactured by or for Osaki Electric Co., Ltd..