Who owns MAC prefix D41C1C?

D41C1C is registered to RCF S.P.A. in the IEEE MA-L registry.

What devices use D41C1C?

Any network device with a MAC address starting D4:1C:1C was manufactured by or for RCF S.P.A..

MA-L · OUI prefix

RCF S.P.A.

Any MAC address starting D4:1C:1C is registered to RCF S.P.A. in IT.

OUI prefix	D41C1C
Vendor	RCF S.P.A.
Registry	MA-L (24-bit, large block)
Country	IT
Example MAC	D4:1C:1C:00:00:00

What this means

The IEEE assigned the MA-L block D41C1C to RCF S.P.A.. 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 D4:1C:1C, it is RCF S.P.A. hardware.

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