What this means
The IEEE assigned the MA-L block 00122F to Sanei Electric Inc.. 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 00:12:2F, it is Sanei Electric Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 00122F?
00122F is registered to Sanei Electric Inc. 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. Sanei Electric Inc.'s block covers 16,777,216 addresses.
What devices use 00122F?
Any network device with a MAC address starting 00:12:2F was manufactured by or for Sanei Electric Inc..