Who owns MAC prefix 70B3D52FE?

70B3D52FE is registered to Yaham Optoelectronics Co., Ltd in the IEEE MA-S registry.

What devices use 70B3D52FE?

Any network device with a MAC address starting 70:B3:D5:2F:E was manufactured by or for Yaham Optoelectronics Co., Ltd.

MA-S · OUI prefix

Yaham Optoelectronics Co., Ltd

Any MAC address starting 70:B3:D5:2F:E is registered to Yaham Optoelectronics Co., Ltd in CN.

OUI prefix	70B3D52FE
Vendor	Yaham Optoelectronics Co., Ltd
Registry	MA-S (36-bit, small block)
Country	CN
Example MAC	70:B3:D5:2F:E:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D52FE to Yaham Optoelectronics 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 70:B3:D5:2F:E, it is Yaham Optoelectronics Co., Ltd hardware.

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