What this means
The IEEE assigned the MA-L block B40B44 to Smartisan Technology 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 B4:0B:44, it is Smartisan Technology Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix B40B44?
B40B44 is registered to Smartisan Technology 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. Smartisan Technology Co., Ltd.'s block covers 16,777,216 addresses.
What devices use B40B44?
Any network device with a MAC address starting B4:0B:44 was manufactured by or for Smartisan Technology Co., Ltd..