What this means
The IEEE assigned the MA-L block D42C3D to Sky Light Digital Limited. 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 D4:2C:3D, it is Sky Light Digital Limited hardware.
Frequently Asked Questions
Who owns MAC prefix D42C3D?
D42C3D is registered to Sky Light Digital Limited 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. Sky Light Digital Limited's block covers 16,777,216 addresses.
What devices use D42C3D?
Any network device with a MAC address starting D4:2C:3D was manufactured by or for Sky Light Digital Limited.