What this means
The IEEE assigned the MA-M block 6CDFFB9 to YongTechs Electric 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 6C:DF:FB:9, it is YongTechs Electric Co. Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 6CDFFB9?
6CDFFB9 is registered to YongTechs Electric Co. Ltd in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. YongTechs Electric Co. Ltd's block covers 1,048,576 addresses.
What devices use 6CDFFB9?
Any network device with a MAC address starting 6C:DF:FB:9 was manufactured by or for YongTechs Electric Co. Ltd.