Who owns MAC prefix 681CA2?

681CA2 is registered to Rosewill Inc. in the IEEE MA-L registry.

What devices use 681CA2?

Any network device with a MAC address starting 68:1C:A2 was manufactured by or for Rosewill Inc..

MA-L · OUI prefix

Rosewill Inc.

Any MAC address starting 68:1C:A2 is registered to Rosewill Inc. in US.

OUI prefix	681CA2
Vendor	Rosewill Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	68:1C:A2:00:00:00

What this means

The IEEE assigned the MA-L block 681CA2 to Rosewill Inc.. 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 68:1C:A2, it is Rosewill Inc. hardware.

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