Who owns MAC prefix 70B3D5B99?

70B3D5B99 is registered to DomoSafety S.A. in the IEEE MA-S registry.

What devices use 70B3D5B99?

Any network device with a MAC address starting 70:B3:D5:B9:9 was manufactured by or for DomoSafety S.A..

MA-S · OUI prefix

DomoSafety S.A.

Any MAC address starting 70:B3:D5:B9:9 is registered to DomoSafety S.A. in CH.

OUI prefix	70B3D5B99
Vendor	DomoSafety S.A.
Registry	MA-S (36-bit, small block)
Country	CH
Example MAC	70:B3:D5:B9:9:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5B99 to DomoSafety S.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:B9:9, it is DomoSafety S.A. hardware.

Look up another MAC