What this means
The IEEE assigned the MA-L block 00250A to Security Expert 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 00:25:0A, it is Security Expert Co. Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 00250A?
00250A is registered to Security Expert 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. Security Expert Co. Ltd's block covers 16,777,216 addresses.
What devices use 00250A?
Any network device with a MAC address starting 00:25:0A was manufactured by or for Security Expert Co. Ltd.