What this means
The IEEE assigned the MA-S block 70B3D56E4 to Institute of Power Engineering, Gdansk Division. 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:D5:6E:4, it is Institute of Power Engineering, Gdansk Division hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D56E4?
70B3D56E4 is registered to Institute of Power Engineering, Gdansk Division 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. Institute of Power Engineering, Gdansk Division's block covers 4,096 addresses.
What devices use 70B3D56E4?
Any network device with a MAC address starting 70:B3:D5:6E:4 was manufactured by or for Institute of Power Engineering, Gdansk Division.