What this means
The IEEE assigned the MA-M block DC4427B to Nautilus Infotech 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 DC:44:27:B, it is Nautilus Infotech CO., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix DC4427B?
DC4427B is registered to Nautilus Infotech 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. Nautilus Infotech CO., Ltd.'s block covers 1,048,576 addresses.
What devices use DC4427B?
Any network device with a MAC address starting DC:44:27:B was manufactured by or for Nautilus Infotech CO., Ltd..