What this means
The IEEE assigned the MA-S block 001BC502F to Fibrain Co. Ltd.. 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 00:1B:C5:02:F, it is Fibrain Co. Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 001BC502F?
001BC502F is registered to Fibrain Co. Ltd. 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. Fibrain Co. Ltd.'s block covers 4,096 addresses.
What devices use 001BC502F?
Any network device with a MAC address starting 00:1B:C5:02:F was manufactured by or for Fibrain Co. Ltd..