Who owns MAC prefix 70B3D5ABB?

70B3D5ABB is registered to David Horn Communications Ltd in the IEEE MA-S registry.

What devices use 70B3D5ABB?

Any network device with a MAC address starting 70:B3:D5:AB:B was manufactured by or for David Horn Communications Ltd.

MA-S · OUI prefix

David Horn Communications Ltd

Any MAC address starting 70:B3:D5:AB:B is registered to David Horn Communications Ltd.

OUI prefix	70B3D5ABB
Vendor	David Horn Communications Ltd
Registry	MA-S (36-bit, small block)
Example MAC	70:B3:D5:AB:B:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5ABB to David Horn Communications Ltd. 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:AB:B, it is David Horn Communications Ltd hardware.

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