What this means

The IEEE assigned the MA-S block 70B3D57FD to SYS TEC electronic GmbH. 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:D5:7F:D, it is SYS TEC electronic GmbH hardware.

Frequently Asked Questions

Who owns MAC prefix 70B3D57FD?

70B3D57FD is registered to SYS TEC electronic GmbH 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. SYS TEC electronic GmbH's block covers 4,096 addresses.

What devices use 70B3D57FD?

Any network device with a MAC address starting 70:B3:D5:7F:D was manufactured by or for SYS TEC electronic GmbH.