What this means
The IEEE assigned the MA-L block 3CC99E to Huiyang 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:C9:9E, it is Huiyang Technology Co., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 3CC99E?
3CC99E is registered to Huiyang 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. Huiyang Technology Co., Ltd's block covers 16,777,216 addresses.
What devices use 3CC99E?
Any network device with a MAC address starting 3C:C9:9E was manufactured by or for Huiyang Technology Co., Ltd.