What this means
The IEEE assigned the MA-L block 28047A to WNC 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 28:04:7A, it is WNC Corporation hardware.
Frequently Asked Questions
Who owns MAC prefix 28047A?
28047A is registered to WNC 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. WNC Corporation's block covers 16,777,216 addresses.
What devices use 28047A?
Any network device with a MAC address starting 28:04:7A was manufactured by or for WNC Corporation.