What this means
The IEEE assigned the MA-L block DC575C to PR Electronics A/S. 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:57:5C, it is PR Electronics A/S hardware.
Frequently Asked Questions
Who owns MAC prefix DC575C?
DC575C is registered to PR Electronics A/S in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. PR Electronics A/S's block covers 16,777,216 addresses.
What devices use DC575C?
Any network device with a MAC address starting DC:57:5C was manufactured by or for PR Electronics A/S.