Who owns MAC prefix B4E8C9?

B4E8C9 is registered to XADA Technologies in the IEEE MA-L registry.

What devices use B4E8C9?

Any network device with a MAC address starting B4:E8:C9 was manufactured by or for XADA Technologies.

MA-L · OUI prefix

XADA Technologies

Any MAC address starting B4:E8:C9 is registered to XADA Technologies in TW.

OUI prefix	B4E8C9
Vendor	XADA Technologies
Registry	MA-L (24-bit, large block)
Country	TW
Example MAC	B4:E8:C9:00:00:00

What this means

The IEEE assigned the MA-L block B4E8C9 to XADA Technologies. 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:E8:C9, it is XADA Technologies hardware.

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