What this means
The IEEE assigned the MA-L block D03BF4 to Shenzhen Kean Digital 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 D0:3B:F4, it is Shenzhen Kean Digital Co.,Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix D03BF4?
D03BF4 is registered to Shenzhen Kean Digital 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. Shenzhen Kean Digital Co.,Ltd's block covers 16,777,216 addresses.
What devices use D03BF4?
Any network device with a MAC address starting D0:3B:F4 was manufactured by or for Shenzhen Kean Digital Co.,Ltd.