What this means
The IEEE assigned the MA-L block 4CB21C to Maxphotonics 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 4C:B2:1C, it is Maxphotonics Co.,Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 4CB21C?
4CB21C is registered to Maxphotonics 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. Maxphotonics Co.,Ltd's block covers 16,777,216 addresses.
What devices use 4CB21C?
Any network device with a MAC address starting 4C:B2:1C was manufactured by or for Maxphotonics Co.,Ltd.