What this means
The IEEE assigned the MA-S block 8C1F646B1 to Specialist Mechanical Engineers (PTY)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 8C:1F:64:6B:1, it is Specialist Mechanical Engineers (PTY)LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 8C1F646B1?
8C1F646B1 is registered to Specialist Mechanical Engineers (PTY)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. Specialist Mechanical Engineers (PTY)LTD's block covers 4,096 addresses.
What devices use 8C1F646B1?
Any network device with a MAC address starting 8C:1F:64:6B:1 was manufactured by or for Specialist Mechanical Engineers (PTY)LTD.