Who owns MAC prefix 3C300C?

3C300C is registered to Dewar Electronics Pty Ltd in the IEEE MA-L registry.

What devices use 3C300C?

Any network device with a MAC address starting 3C:30:0C was manufactured by or for Dewar Electronics Pty Ltd.

MA-L · OUI prefix

Dewar Electronics Pty Ltd

Any MAC address starting 3C:30:0C is registered to Dewar Electronics Pty Ltd in AU.

OUI prefix	3C300C
Vendor	Dewar Electronics Pty Ltd
Registry	MA-L (24-bit, large block)
Country	AU
Example MAC	3C:30:0C:00:00:00

What this means

The IEEE assigned the MA-L block 3C300C to Dewar Electronics Pty 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 3C:30:0C, it is Dewar Electronics Pty Ltd hardware.

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