What this means
The IEEE assigned the MA-S block 70B3D5DF0 to astozi consulting Tomasz Zieba. 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:DF:0, it is astozi consulting Tomasz Zieba hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D5DF0?
70B3D5DF0 is registered to astozi consulting Tomasz Zieba 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. astozi consulting Tomasz Zieba's block covers 4,096 addresses.
What devices use 70B3D5DF0?
Any network device with a MAC address starting 70:B3:D5:DF:0 was manufactured by or for astozi consulting Tomasz Zieba.