What this means
The IEEE assigned the MA-S block 8C1F6441B to ENERGY POWER PRODUCTS LIMITED. 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:64:41:B, it is ENERGY POWER PRODUCTS LIMITED hardware.
Frequently Asked Questions
Who owns MAC prefix 8C1F6441B?
8C1F6441B is registered to ENERGY POWER PRODUCTS LIMITED 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. ENERGY POWER PRODUCTS LIMITED's block covers 4,096 addresses.
What devices use 8C1F6441B?
Any network device with a MAC address starting 8C:1F:64:41:B was manufactured by or for ENERGY POWER PRODUCTS LIMITED.