Who owns MAC prefix 00909E?

00909E is registered to Critical IO, LLC in the IEEE MA-L registry.

What devices use 00909E?

Any network device with a MAC address starting 00:90:9E was manufactured by or for Critical IO, LLC.

MA-L · OUI prefix

Critical IO, LLC

Any MAC address starting 00:90:9E is registered to Critical IO, LLC in US.

OUI prefix	00909E
Vendor	Critical IO, LLC
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:90:9E:00:00:00

What this means

The IEEE assigned the MA-L block 00909E to Critical IO, LLC. 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 00:90:9E, it is Critical IO, LLC hardware.

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