What this means
The IEEE assigned the MA-L block 68122D to Special Instrument Development 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 68:12:2D, it is Special Instrument Development Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 68122D?
68122D is registered to Special Instrument Development 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. Special Instrument Development Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 68122D?
Any network device with a MAC address starting 68:12:2D was manufactured by or for Special Instrument Development Co., Ltd..