What this means
The IEEE assigned the MA-S block 70B3D5FCB to Tieline Research Pty 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:FC:B, it is Tieline Research Pty Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D5FCB?
70B3D5FCB is registered to Tieline Research Pty 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. Tieline Research Pty Ltd's block covers 4,096 addresses.
What devices use 70B3D5FCB?
Any network device with a MAC address starting 70:B3:D5:FC:B was manufactured by or for Tieline Research Pty Ltd.