What this means
The IEEE assigned the MA-M block C0D3917 to ALNETz 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 C0:D3:91:7, it is ALNETz Co.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix C0D3917?
C0D3917 is registered to ALNETz 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. ALNETz Co.,LTD's block covers 1,048,576 addresses.
What devices use C0D3917?
Any network device with a MAC address starting C0:D3:91:7 was manufactured by or for ALNETz Co.,LTD.