What this means
The IEEE assigned the MA-L block DCD52A to Sunny Heart 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 DC:D5:2A, it is Sunny Heart Limited hardware.
Frequently Asked Questions
Who owns MAC prefix DCD52A?
DCD52A is registered to Sunny Heart 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. Sunny Heart Limited's block covers 16,777,216 addresses.
What devices use DCD52A?
Any network device with a MAC address starting DC:D5:2A was manufactured by or for Sunny Heart Limited.