What this means
The IEEE assigned the MA-M block D09686D to CertusNet Information 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 D0:96:86:D, it is CertusNet Information Technology Co.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix D09686D?
D09686D is registered to CertusNet Information Technology 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. CertusNet Information Technology Co.,LTD's block covers 1,048,576 addresses.
What devices use D09686D?
Any network device with a MAC address starting D0:96:86:D was manufactured by or for CertusNet Information Technology Co.,LTD.