What this means
The IEEE assigned the MA-L block D052A8 to Physical Graph Corporation. 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 D0:52:A8, it is Physical Graph Corporation hardware.
Frequently Asked Questions
Who owns MAC prefix D052A8?
D052A8 is registered to Physical Graph Corporation 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. Physical Graph Corporation's block covers 16,777,216 addresses.
What devices use D052A8?
Any network device with a MAC address starting D0:52:A8 was manufactured by or for Physical Graph Corporation.