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.
Frequently Asked Questions
Who owns MAC prefix 681CA2?
681CA2 is registered to Rosewill Inc. in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Rosewill Inc.'s block covers 16,777,216 addresses.
What devices use 681CA2?
Any network device with a MAC address starting 68:1C:A2 was manufactured by or for Rosewill Inc..