Who owns MAC prefix 9CDD1F?

9CDD1F is registered to Intelligent Steward Co.,Ltd in the IEEE MA-L registry.

What devices use 9CDD1F?

Any network device with a MAC address starting 9C:DD:1F was manufactured by or for Intelligent Steward Co.,Ltd.

MA-L · OUI prefix

Intelligent Steward Co.,Ltd

Any MAC address starting 9C:DD:1F is registered to Intelligent Steward Co.,Ltd in CN.

OUI prefix	9CDD1F
Vendor	Intelligent Steward Co.,Ltd
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	9C:DD:1F:00:00:00

What this means

The IEEE assigned the MA-L block 9CDD1F to Intelligent Steward Co.,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 9C:DD:1F, it is Intelligent Steward Co.,Ltd hardware.

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