Who owns MAC prefix 70B3D573B?

70B3D573B is registered to S-I-C in the IEEE MA-S registry.

What devices use 70B3D573B?

Any network device with a MAC address starting 70:B3:D5:73:B was manufactured by or for S-I-C.

MA-S · OUI prefix

S-I-C

Any MAC address starting 70:B3:D5:73:B is registered to S-I-C in DE.

OUI prefix	70B3D573B
Vendor	S-I-C
Registry	MA-S (36-bit, small block)
Country	DE
Example MAC	70:B3:D5:73:B:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D573B to S-I-C. 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:D5:73:B, it is S-I-C hardware.

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