Who owns MAC prefix 8C1F6418A?

8C1F6418A is registered to Network Rail in the IEEE MA-S registry.

What devices use 8C1F6418A?

Any network device with a MAC address starting 8C:1F:64:18:A was manufactured by or for Network Rail.

MA-S · OUI prefix

Network Rail

Any MAC address starting 8C:1F:64:18:A is registered to Network Rail.

OUI prefix	8C1F6418A
Vendor	Network Rail
Registry	MA-S (36-bit, small block)
Example MAC	8C:1F:64:18:A:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F6418A to Network Rail. 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:64:18:A, it is Network Rail hardware.

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