What this means
The IEEE assigned the MA-M block C47C8D3 to Watec 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 C4:7C:8D:3, it is Watec Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix C47C8D3?
C47C8D3 is registered to Watec 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. Watec Co., Ltd.'s block covers 1,048,576 addresses.
What devices use C47C8D3?
Any network device with a MAC address starting C4:7C:8D:3 was manufactured by or for Watec Co., Ltd..