Who owns MAC prefix 1CA2B1?

1CA2B1 is registered to ruwido austria gmbh in the IEEE MA-L registry.

What devices use 1CA2B1?

Any network device with a MAC address starting 1C:A2:B1 was manufactured by or for ruwido austria gmbh.

MA-L · OUI prefix

ruwido austria gmbh

Any MAC address starting 1C:A2:B1 is registered to ruwido austria gmbh in AT.

OUI prefix	1CA2B1
Vendor	ruwido austria gmbh
Registry	MA-L (24-bit, large block)
Country	AT
Example MAC	1C:A2:B1:00:00:00

What this means

The IEEE assigned the MA-L block 1CA2B1 to ruwido austria gmbh. 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:A2:B1, it is ruwido austria gmbh hardware.

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