Who owns MAC prefix B8CD93?

B8CD93 is registered to Penetek, Inc in the IEEE MA-L registry.

What devices use B8CD93?

Any network device with a MAC address starting B8:CD:93 was manufactured by or for Penetek, Inc.

MA-L · OUI prefix

Penetek, Inc

Any MAC address starting B8:CD:93 is registered to Penetek, Inc in TW.

OUI prefix	B8CD93
Vendor	Penetek, Inc
Registry	MA-L (24-bit, large block)
Country	TW
Example MAC	B8:CD:93:00:00:00

What this means

The IEEE assigned the MA-L block B8CD93 to Penetek, 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 B8:CD:93, it is Penetek, Inc hardware.

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