What this means
The IEEE assigned the MA-L block B8B77D to Guangdong Transtek Medical Electronics 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 B8:B7:7D, it is Guangdong Transtek Medical Electronics CO.,Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix B8B77D?
B8B77D is registered to Guangdong Transtek Medical Electronics 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. Guangdong Transtek Medical Electronics CO.,Ltd's block covers 16,777,216 addresses.
What devices use B8B77D?
Any network device with a MAC address starting B8:B7:7D was manufactured by or for Guangdong Transtek Medical Electronics CO.,Ltd.