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.
Frequently Asked Questions
Who owns MAC prefix 70B3D5ABB?
70B3D5ABB is registered to David Horn Communications Ltd in the IEEE MA-S registry.
What does the MA-S registry type mean?
An MA-S assignment, formerly called OUI-36, covers 36 bits, giving the vendor 4,096 device addresses, the smallest block the IEEE issues. David Horn Communications Ltd's block covers 4,096 addresses.
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.