Who owns MAC prefix 1CFD089?

1CFD089 is registered to Cobham Slip Rings in the IEEE MA-M registry.

What devices use 1CFD089?

Any network device with a MAC address starting 1C:FD:08:9 was manufactured by or for Cobham Slip Rings.

MA-M · OUI prefix

Cobham Slip Rings

Any MAC address starting 1C:FD:08:9 is registered to Cobham Slip Rings in FR.

OUI prefix	1CFD089
Vendor	Cobham Slip Rings
Registry	MA-M (28-bit, medium block)
Country	FR
Example MAC	1C:FD:08:9:00:00:00

What this means

The IEEE assigned the MA-M block 1CFD089 to Cobham Slip Rings. 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 1C:FD:08:9, it is Cobham Slip Rings hardware.

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