Who owns MAC prefix 00091A?

00091A is registered to Macat Optics & Electronics Co., Ltd. in the IEEE MA-L registry.

What devices use 00091A?

Any network device with a MAC address starting 00:09:1A was manufactured by or for Macat Optics & Electronics Co., Ltd..

MA-L · OUI prefix

Macat Optics & Electronics Co., Ltd.

Any MAC address starting 00:09:1A is registered to Macat Optics & Electronics Co., Ltd. in CN.

OUI prefix	00091A
Vendor	Macat Optics & Electronics Co., Ltd.
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	00:09:1A:00:00:00

What this means

The IEEE assigned the MA-L block 00091A to Macat Optics & Electronics Co., Ltd.. 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 00:09:1A, it is Macat Optics & Electronics Co., Ltd. hardware.

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