What this means
The IEEE assigned the MA-S block 8C1F6403B to Orion Power Systems, Inc.. 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 8C:1F:64:03:B, it is Orion Power Systems, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 8C1F6403B?
8C1F6403B is registered to Orion Power Systems, Inc. in the IEEE MA-S registry.
What does the MA-S registry type mean?
An MA-S assignment, formerly called OUI-36, covers 36 bits, giving the vendor 4,096 device addresses, the smallest block the IEEE issues. Orion Power Systems, Inc.'s block covers 4,096 addresses.
What devices use 8C1F6403B?
Any network device with a MAC address starting 8C:1F:64:03:B was manufactured by or for Orion Power Systems, Inc..