Who owns MAC prefix 70B3D5B91?

70B3D5B91 is registered to Dynetics, Inc. in the IEEE MA-S registry.

What devices use 70B3D5B91?

Any network device with a MAC address starting 70:B3:D5:B9:1 was manufactured by or for Dynetics, Inc..

MA-S · OUI prefix

Dynetics, Inc.

Any MAC address starting 70:B3:D5:B9:1 is registered to Dynetics, Inc. in US.

OUI prefix	70B3D5B91
Vendor	Dynetics, Inc.
Registry	MA-S (36-bit, small block)
Country	US
Example MAC	70:B3:D5:B9:1:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5B91 to Dynetics, Inc.. 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:B9:1, it is Dynetics, Inc. hardware.

Look up another MAC