What this means
The IEEE assigned the MA-L block 002522 to ASRock Incorporation. 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 00:25:22, it is ASRock Incorporation hardware.
Frequently Asked Questions
Who owns MAC prefix 002522?
002522 is registered to ASRock Incorporation 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. ASRock Incorporation's block covers 16,777,216 addresses.
What devices use 002522?
Any network device with a MAC address starting 00:25:22 was manufactured by or for ASRock Incorporation.