Who owns MAC prefix 1C0B52?

1C0B52 is registered to EPICOM S.A in the IEEE MA-L registry.

What devices use 1C0B52?

Any network device with a MAC address starting 1C:0B:52 was manufactured by or for EPICOM S.A.

MA-L · OUI prefix

EPICOM S.A

Any MAC address starting 1C:0B:52 is registered to EPICOM S.A in ES.

OUI prefix	1C0B52
Vendor	EPICOM S.A
Registry	MA-L (24-bit, large block)
Country	ES
Example MAC	1C:0B:52:00:00:00

What this means

The IEEE assigned the MA-L block 1C0B52 to EPICOM S.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 1C:0B:52, it is EPICOM S.A hardware.

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