What this means
The IEEE assigned the MA-L block 002193 to Videofon MV. 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 00:21:93, it is Videofon MV hardware.
Frequently Asked Questions
Who owns MAC prefix 002193?
002193 is registered to Videofon MV 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. Videofon MV's block covers 16,777,216 addresses.
What devices use 002193?
Any network device with a MAC address starting 00:21:93 was manufactured by or for Videofon MV.