Who owns MAC prefix 00CD90?

00CD90 is registered to MAS Elektronik AG in the IEEE MA-L registry.

What devices use 00CD90?

Any network device with a MAC address starting 00:CD:90 was manufactured by or for MAS Elektronik AG.

MA-L · OUI prefix

MAS Elektronik AG

Any MAC address starting 00:CD:90 is registered to MAS Elektronik AG in DE.

OUI prefix	00CD90
Vendor	MAS Elektronik AG
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	00:CD:90:00:00:00

What this means

The IEEE assigned the MA-L block 00CD90 to MAS Elektronik AG. 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 00:CD:90, it is MAS Elektronik AG hardware.

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