What this means
The IEEE assigned the MA-L block 40D4BD to SK Networks Service 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 40:D4:BD, it is SK Networks Service CO., LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix 40D4BD?
40D4BD is registered to SK Networks Service 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. SK Networks Service CO., LTD.'s block covers 16,777,216 addresses.
What devices use 40D4BD?
Any network device with a MAC address starting 40:D4:BD was manufactured by or for SK Networks Service CO., LTD..