Who owns MAC prefix 70B3D5B9E?

70B3D5B9E is registered to POLSYSTEM SI SP. Z O.O., S.K.A. in the IEEE MA-S registry.

What devices use 70B3D5B9E?

Any network device with a MAC address starting 70:B3:D5:B9:E was manufactured by or for POLSYSTEM SI SP. Z O.O., S.K.A..

MA-S · OUI prefix

POLSYSTEM SI SP. Z O.O., S.K.A.

Any MAC address starting 70:B3:D5:B9:E is registered to POLSYSTEM SI SP. Z O.O., S.K.A. in PL.

OUI prefix	70B3D5B9E
Vendor	POLSYSTEM SI SP. Z O.O., S.K.A.
Registry	MA-S (36-bit, small block)
Country	PL
Example MAC	70:B3:D5:B9:E:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5B9E to POLSYSTEM SI SP. Z O.O., S.K.A.. 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:B9:E, it is POLSYSTEM SI SP. Z O.O., S.K.A. hardware.

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