What this means
The IEEE assigned the MA-L block 3CBB73 to Shenzhen Xinguodu 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 3C:BB:73, it is Shenzhen Xinguodu Technology Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 3CBB73?
3CBB73 is registered to Shenzhen Xinguodu 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. Shenzhen Xinguodu Technology Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 3CBB73?
Any network device with a MAC address starting 3C:BB:73 was manufactured by or for Shenzhen Xinguodu Technology Co., Ltd..