Who owns MAC prefix 3C7873?

3C7873 is registered to Airsonics in the IEEE MA-L registry.

What devices use 3C7873?

Any network device with a MAC address starting 3C:78:73 was manufactured by or for Airsonics.

MA-L · OUI prefix

Airsonics

Any MAC address starting 3C:78:73 is registered to Airsonics in US.

OUI prefix	3C7873
Vendor	Airsonics
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	3C:78:73:00:00:00

What this means

The IEEE assigned the MA-L block 3C7873 to Airsonics. 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 3C:78:73, it is Airsonics hardware.

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