What this means
The IEEE assigned the MA-L block 54C45B to Arcadyan Corporation. 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 54:C4:5B, it is Arcadyan Corporation hardware.
Frequently Asked Questions
Who owns MAC prefix 54C45B?
54C45B is registered to Arcadyan Corporation 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. Arcadyan Corporation's block covers 16,777,216 addresses.
What devices use 54C45B?
Any network device with a MAC address starting 54:C4:5B was manufactured by or for Arcadyan Corporation.