What this means
The IEEE assigned the MA-L block 3C57BD to Kessler Crane 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 3C:57:BD, it is Kessler Crane Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 3C57BD?
3C57BD is registered to Kessler Crane 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. Kessler Crane Inc.'s block covers 16,777,216 addresses.
What devices use 3C57BD?
Any network device with a MAC address starting 3C:57:BD was manufactured by or for Kessler Crane Inc..