What this means
The IEEE assigned the MA-L block A4B1E9 to Vantiva Technologies Belgium. 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 A4:B1:E9, it is Vantiva Technologies Belgium hardware.
Frequently Asked Questions
Who owns MAC prefix A4B1E9?
A4B1E9 is registered to Vantiva Technologies Belgium 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. Vantiva Technologies Belgium's block covers 16,777,216 addresses.
What devices use A4B1E9?
Any network device with a MAC address starting A4:B1:E9 was manufactured by or for Vantiva Technologies Belgium.