Who owns MAC prefix 18A4A9?

18A4A9 is registered to Vanu Inc. in the IEEE MA-L registry.

What devices use 18A4A9?

Any network device with a MAC address starting 18:A4:A9 was manufactured by or for Vanu Inc..

MA-L · OUI prefix

Vanu Inc.

Any MAC address starting 18:A4:A9 is registered to Vanu Inc. in US.

OUI prefix	18A4A9
Vendor	Vanu Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	18:A4:A9:00:00:00

What this means

The IEEE assigned the MA-L block 18A4A9 to Vanu 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 18:A4:A9, it is Vanu Inc. hardware.

Look up another MAC