Who owns MAC prefix A0F509?

A0F509 is registered to IEI Integration Corp. in the IEEE MA-L registry.

What devices use A0F509?

Any network device with a MAC address starting A0:F5:09 was manufactured by or for IEI Integration Corp..

MA-L · OUI prefix

IEI Integration Corp.

Any MAC address starting A0:F5:09 is registered to IEI Integration Corp. in TW.

OUI prefix	A0F509
Vendor	IEI Integration Corp.
Registry	MA-L (24-bit, large block)
Country	TW
Example MAC	A0:F5:09:00:00:00

What this means

The IEEE assigned the MA-L block A0F509 to IEI Integration Corp.. 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 A0:F5:09, it is IEI Integration Corp. hardware.

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