What devices use 143B42?

Any network device with a MAC address starting 14:3B:42 was manufactured by or for Realfit(Shenzhen) Intelligent Technology Co., Ltd.

MA-L · OUI prefix

Realfit(Shenzhen) Intelligent Technology Co., Ltd

Q: Who owns MAC prefix 143B42?

143B42 is registered to Realfit(Shenzhen) Intelligent Technology Co., Ltd in the IEEE MA-L registry.

Any MAC address starting 14:3B:42 is registered to Realfit(Shenzhen) Intelligent Technology Co., Ltd in CN.

OUI prefix	143B42
Vendor	Realfit(Shenzhen) Intelligent Technology Co., Ltd
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	14:3B:42:00:00:00

What this means

The IEEE assigned the MA-L block 143B42 to Realfit(Shenzhen) Intelligent 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 14:3B:42, it is Realfit(Shenzhen) Intelligent Technology Co., Ltd hardware.

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