What this means
The IEEE assigned the MA-S block 70B3D563D to Topic Embedded Products B.V.. 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:D5:63:D, it is Topic Embedded Products B.V. hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D563D?
70B3D563D is registered to Topic Embedded Products B.V. 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. Topic Embedded Products B.V.'s block covers 4,096 addresses.
What devices use 70B3D563D?
Any network device with a MAC address starting 70:B3:D5:63:D was manufactured by or for Topic Embedded Products B.V..