Who owns MAC prefix 78C4AB?

78C4AB is registered to Shenzhen Runsil Technology Co.,Ltd in the IEEE MA-L registry.

What devices use 78C4AB?

Any network device with a MAC address starting 78:C4:AB was manufactured by or for Shenzhen Runsil Technology Co.,Ltd.

MA-L · OUI prefix

Shenzhen Runsil Technology Co.,Ltd

Any MAC address starting 78:C4:AB is registered to Shenzhen Runsil Technology Co.,Ltd in CN.

OUI prefix	78C4AB
Vendor	Shenzhen Runsil Technology Co.,Ltd
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	78:C4:AB:00:00:00

What this means

The IEEE assigned the MA-L block 78C4AB to Shenzhen Runsil Technology 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 78:C4:AB, it is Shenzhen Runsil Technology Co.,Ltd hardware.

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