What this means
The IEEE assigned the MA-L block 84DF19 to Chuango Security Technology Corporation. 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:DF:19, it is Chuango Security Technology Corporation hardware.
Frequently Asked Questions
Who owns MAC prefix 84DF19?
84DF19 is registered to Chuango Security Technology Corporation 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. Chuango Security Technology Corporation's block covers 16,777,216 addresses.
What devices use 84DF19?
Any network device with a MAC address starting 84:DF:19 was manufactured by or for Chuango Security Technology Corporation.