Who owns MAC prefix 70B3D57D5?

70B3D57D5 is registered to SICS Swedish ICT in the IEEE MA-S registry.

What devices use 70B3D57D5?

Any network device with a MAC address starting 70:B3:D5:7D:5 was manufactured by or for SICS Swedish ICT.

MA-S · OUI prefix

SICS Swedish ICT

Any MAC address starting 70:B3:D5:7D:5 is registered to SICS Swedish ICT.

OUI prefix	70B3D57D5
Vendor	SICS Swedish ICT
Registry	MA-S (36-bit, small block)
Example MAC	70:B3:D5:7D:5:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D57D5 to SICS Swedish ICT. 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:D5:7D:5, it is SICS Swedish ICT hardware.

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