What this means
The IEEE assigned the MA-S block 70B3D5CBF to Cubic ITS, Inc. dba GRIDSMART Technologies. 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:CB:F, it is Cubic ITS, Inc. dba GRIDSMART Technologies hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D5CBF?
70B3D5CBF is registered to Cubic ITS, Inc. dba GRIDSMART Technologies 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. Cubic ITS, Inc. dba GRIDSMART Technologies's block covers 4,096 addresses.
What devices use 70B3D5CBF?
Any network device with a MAC address starting 70:B3:D5:CB:F was manufactured by or for Cubic ITS, Inc. dba GRIDSMART Technologies.