What this means
The IEEE assigned the MA-L block B43D08 to GX International BV. 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 B4:3D:08, it is GX International BV hardware.
Frequently Asked Questions
Who owns MAC prefix B43D08?
B43D08 is registered to GX International BV 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. GX International BV's block covers 16,777,216 addresses.
What devices use B43D08?
Any network device with a MAC address starting B4:3D:08 was manufactured by or for GX International BV.