What this means
The IEEE assigned the MA-L block D4B169 to Le Shi Zhi Xin Electronic Technology (Tianjin) 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:B1:69, it is Le Shi Zhi Xin Electronic Technology (Tianjin) Limited hardware.
Frequently Asked Questions
Who owns MAC prefix D4B169?
D4B169 is registered to Le Shi Zhi Xin Electronic Technology (Tianjin) 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. Le Shi Zhi Xin Electronic Technology (Tianjin) Limited's block covers 16,777,216 addresses.
What devices use D4B169?
Any network device with a MAC address starting D4:B1:69 was manufactured by or for Le Shi Zhi Xin Electronic Technology (Tianjin) Limited.