Who owns MAC prefix 8C1F64391?

8C1F64391 is registered to CPC (UK) in the IEEE MA-S registry.

What devices use 8C1F64391?

Any network device with a MAC address starting 8C:1F:64:39:1 was manufactured by or for CPC (UK).

MA-S · OUI prefix

CPC (UK)

Any MAC address starting 8C:1F:64:39:1 is registered to CPC (UK) in GB.

OUI prefix	8C1F64391
Vendor	CPC (UK)
Registry	MA-S (36-bit, small block)
Country	GB
Example MAC	8C:1F:64:39:1:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F64391 to CPC (UK). 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:64:39:1, it is CPC (UK) hardware.

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