What this means
The IEEE assigned the MA-L block 84DE3D to Crystal Vision 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 84:DE:3D, it is Crystal Vision Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 84DE3D?
84DE3D is registered to Crystal Vision 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. Crystal Vision Ltd's block covers 16,777,216 addresses.
What devices use 84DE3D?
Any network device with a MAC address starting 84:DE:3D was manufactured by or for Crystal Vision Ltd.