Who owns MAC prefix 70B3D55D6?

70B3D55D6 is registered to BMT Messtechnik Gmbh in the IEEE MA-S registry.

What devices use 70B3D55D6?

Any network device with a MAC address starting 70:B3:D5:5D:6 was manufactured by or for BMT Messtechnik Gmbh.

MA-S · OUI prefix

BMT Messtechnik Gmbh

Any MAC address starting 70:B3:D5:5D:6 is registered to BMT Messtechnik Gmbh in DE.

OUI prefix	70B3D55D6
Vendor	BMT Messtechnik Gmbh
Registry	MA-S (36-bit, small block)
Country	DE
Example MAC	70:B3:D5:5D:6:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D55D6 to BMT Messtechnik Gmbh. 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:D5:5D:6, it is BMT Messtechnik Gmbh hardware.

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