Who owns MAC prefix 5C6F4F?

5C6F4F is registered to S.A. SISTEL in the IEEE MA-L registry.

What devices use 5C6F4F?

Any network device with a MAC address starting 5C:6F:4F was manufactured by or for S.A. SISTEL.

MA-L · OUI prefix

S.A. SISTEL

Any MAC address starting 5C:6F:4F is registered to S.A. SISTEL in ES.

OUI prefix	5C6F4F
Vendor	S.A. SISTEL
Registry	MA-L (24-bit, large block)
Country	ES
Example MAC	5C:6F:4F:00:00:00

What this means

The IEEE assigned the MA-L block 5C6F4F to S.A. SISTEL. 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 5C:6F:4F, it is S.A. SISTEL hardware.

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