Who owns MAC prefix 70B3D5A55?

70B3D5A55 is registered to Embest Technology Co., Ltd in the IEEE MA-S registry.

What devices use 70B3D5A55?

Any network device with a MAC address starting 70:B3:D5:A5:5 was manufactured by or for Embest Technology Co., Ltd.

MA-S · OUI prefix

Embest Technology Co., Ltd

Any MAC address starting 70:B3:D5:A5:5 is registered to Embest Technology Co., Ltd in CN.

OUI prefix	70B3D5A55
Vendor	Embest Technology Co., Ltd
Registry	MA-S (36-bit, small block)
Country	CN
Example MAC	70:B3:D5:A5:5:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5A55 to Embest 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 70:B3:D5:A5:5, it is Embest Technology Co., Ltd hardware.

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