What this means
The IEEE assigned the MA-L block C4C9EC to Gugaoo HK Limited. 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 C4:C9:EC, it is Gugaoo HK Limited hardware.
Frequently Asked Questions
Who owns MAC prefix C4C9EC?
C4C9EC is registered to Gugaoo HK Limited 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. Gugaoo HK Limited's block covers 16,777,216 addresses.
What devices use C4C9EC?
Any network device with a MAC address starting C4:C9:EC was manufactured by or for Gugaoo HK Limited.