What this means
The IEEE assigned the MA-L block 448E81 to VIG. 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 44:8E:81, it is VIG hardware.
Frequently Asked Questions
Who owns MAC prefix 448E81?
448E81 is registered to VIG 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. VIG's block covers 16,777,216 addresses.
What devices use 448E81?
Any network device with a MAC address starting 44:8E:81 was manufactured by or for VIG.