Who owns MAC prefix 1CA0D3A?

1CA0D3A is registered to DSM Messtechnik GmbH in the IEEE MA-M registry.

What devices use 1CA0D3A?

Any network device with a MAC address starting 1C:A0:D3:A was manufactured by or for DSM Messtechnik GmbH.

MA-M · OUI prefix

DSM Messtechnik GmbH

Any MAC address starting 1C:A0:D3:A is registered to DSM Messtechnik GmbH in DE.

OUI prefix	1CA0D3A
Vendor	DSM Messtechnik GmbH
Registry	MA-M (28-bit, medium block)
Country	DE
Example MAC	1C:A0:D3:A:00:00:00

What this means

The IEEE assigned the MA-M block 1CA0D3A to DSM Messtechnik 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:A0:D3:A, it is DSM Messtechnik GmbH hardware.

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