Who owns MAC prefix 0004C4?

0004C4 is registered to Audiotonix Group Limited in the IEEE MA-L registry.

What devices use 0004C4?

Any network device with a MAC address starting 00:04:C4 was manufactured by or for Audiotonix Group Limited.

MA-L · OUI prefix

Audiotonix Group Limited

Any MAC address starting 00:04:C4 is registered to Audiotonix Group Limited.

OUI prefix	0004C4
Vendor	Audiotonix Group Limited
Registry	MA-L (24-bit, large block)
Example MAC	00:04:C4:00:00:00

What this means

The IEEE assigned the MA-L block 0004C4 to Audiotonix Group Limited. 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 00:04:C4, it is Audiotonix Group Limited hardware.

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