What this means
The IEEE assigned the MA-L block 448A5B to Micro-Star INT'L 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 44:8A:5B, it is Micro-Star INT'L CO., LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix 448A5B?
448A5B is registered to Micro-Star INT'L 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. Micro-Star INT'L CO., LTD.'s block covers 16,777,216 addresses.
What devices use 448A5B?
Any network device with a MAC address starting 44:8A:5B was manufactured by or for Micro-Star INT'L CO., LTD..