What this means
The IEEE assigned the MA-L block D81909 to Wiwynn Technology Service Malaysia. 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 D8:19:09, it is Wiwynn Technology Service Malaysia hardware.
Frequently Asked Questions
Who owns MAC prefix D81909?
D81909 is registered to Wiwynn Technology Service Malaysia 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. Wiwynn Technology Service Malaysia's block covers 16,777,216 addresses.
What devices use D81909?
Any network device with a MAC address starting D8:19:09 was manufactured by or for Wiwynn Technology Service Malaysia.