What this means
The IEEE assigned the MA-L block 78D129 to Vicos. 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 78:D1:29, it is Vicos hardware.
Frequently Asked Questions
Who owns MAC prefix 78D129?
78D129 is registered to Vicos 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. Vicos's block covers 16,777,216 addresses.
What devices use 78D129?
Any network device with a MAC address starting 78:D1:29 was manufactured by or for Vicos.