Who owns MAC prefix 00221A?

00221A is registered to Audio Precision in the IEEE MA-L registry.

What devices use 00221A?

Any network device with a MAC address starting 00:22:1A was manufactured by or for Audio Precision.

MA-L · OUI prefix

Audio Precision

Any MAC address starting 00:22:1A is registered to Audio Precision in US.

OUI prefix	00221A
Vendor	Audio Precision
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:22:1A:00:00:00

What this means

The IEEE assigned the MA-L block 00221A to Audio Precision. 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 00:22:1A, it is Audio Precision hardware.

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