What this means
The IEEE assigned the MA-L block 80051F to Vizio, 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 80:05:1F, it is Vizio, Inc hardware.
Frequently Asked Questions
Who owns MAC prefix 80051F?
80051F is registered to Vizio, 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. Vizio, Inc's block covers 16,777,216 addresses.
What devices use 80051F?
Any network device with a MAC address starting 80:05:1F was manufactured by or for Vizio, Inc.