What this means
The IEEE assigned the MA-S block 8C1F64F31 to International Water Treatment Maritime AS. 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:F3:1, it is International Water Treatment Maritime AS hardware.
Frequently Asked Questions
Who owns MAC prefix 8C1F64F31?
8C1F64F31 is registered to International Water Treatment Maritime AS 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. International Water Treatment Maritime AS's block covers 4,096 addresses.
What devices use 8C1F64F31?
Any network device with a MAC address starting 8C:1F:64:F3:1 was manufactured by or for International Water Treatment Maritime AS.