What this means
The IEEE assigned the MA-M block C083593 to PCH Engineering 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 C0:83:59:3, it is PCH Engineering A/S hardware.
Frequently Asked Questions
Who owns MAC prefix C083593?
C083593 is registered to PCH Engineering A/S 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. PCH Engineering A/S's block covers 1,048,576 addresses.
What devices use C083593?
Any network device with a MAC address starting C0:83:59:3 was manufactured by or for PCH Engineering A/S.