What this means
The IEEE assigned the MA-L block 546CAC to Intelbras. 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 54:6C:AC, it is Intelbras hardware.
Frequently Asked Questions
Who owns MAC prefix 546CAC?
546CAC is registered to Intelbras 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. Intelbras's block covers 16,777,216 addresses.
What devices use 546CAC?
Any network device with a MAC address starting 54:6C:AC was manufactured by or for Intelbras.