What this means
The IEEE assigned the MA-L block 409B0D to Shenzhen Yourf Kwan Industrial 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 40:9B:0D, it is Shenzhen Yourf Kwan Industrial Co., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 409B0D?
409B0D is registered to Shenzhen Yourf Kwan Industrial 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 Yourf Kwan Industrial Co., Ltd's block covers 16,777,216 addresses.
What devices use 409B0D?
Any network device with a MAC address starting 40:9B:0D was manufactured by or for Shenzhen Yourf Kwan Industrial Co., Ltd.