Who owns MAC prefix DC9C52?

DC9C52 is registered to Sapphire Technology Limited. in the IEEE MA-L registry.

What devices use DC9C52?

Any network device with a MAC address starting DC:9C:52 was manufactured by or for Sapphire Technology Limited..

MA-L · OUI prefix

Sapphire Technology Limited.

Any MAC address starting DC:9C:52 is registered to Sapphire Technology Limited. in HK.

OUI prefix	DC9C52
Vendor	Sapphire Technology Limited.
Registry	MA-L (24-bit, large block)
Country	HK
Example MAC	DC:9C:52:00:00:00

What this means

The IEEE assigned the MA-L block DC9C52 to Sapphire Technology 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 DC:9C:52, it is Sapphire Technology Limited. hardware.

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