Who owns MAC prefix 70B3D5421?

70B3D5421 is registered to North Star Bestech Co., in the IEEE MA-S registry.

What devices use 70B3D5421?

Any network device with a MAC address starting 70:B3:D5:42:1 was manufactured by or for North Star Bestech Co.,.

MA-S · OUI prefix

North Star Bestech Co.,

Any MAC address starting 70:B3:D5:42:1 is registered to North Star Bestech Co., in KR.

OUI prefix	70B3D5421
Vendor	North Star Bestech Co.,
Registry	MA-S (36-bit, small block)
Country	KR
Example MAC	70:B3:D5:42:1:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5421 to North Star Bestech Co.,. 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:D5:42:1, it is North Star Bestech Co., hardware.

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