What this means
The IEEE assigned the MA-L block B40F3B to Tenda Technology Co.,Ltd.Dongguan branch. 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 B4:0F:3B, it is Tenda Technology Co.,Ltd.Dongguan branch hardware.
Frequently Asked Questions
Who owns MAC prefix B40F3B?
B40F3B is registered to Tenda Technology Co.,Ltd.Dongguan branch 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. Tenda Technology Co.,Ltd.Dongguan branch's block covers 16,777,216 addresses.
What devices use B40F3B?
Any network device with a MAC address starting B4:0F:3B was manufactured by or for Tenda Technology Co.,Ltd.Dongguan branch.