What this means
The IEEE assigned the MA-L block 000A51 to GyroSignal Technology 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 00:0A:51, it is GyroSignal Technology Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 000A51?
000A51 is registered to GyroSignal Technology 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. GyroSignal Technology Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 000A51?
Any network device with a MAC address starting 00:0A:51 was manufactured by or for GyroSignal Technology Co., Ltd..