What this means
The IEEE assigned the MA-S block 70B3D5CBD to PREO INDUSTRIES FAR EAST LTD. 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:D, it is PREO INDUSTRIES FAR EAST LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D5CBD?
70B3D5CBD is registered to PREO INDUSTRIES FAR EAST LTD 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. PREO INDUSTRIES FAR EAST LTD's block covers 4,096 addresses.
What devices use 70B3D5CBD?
Any network device with a MAC address starting 70:B3:D5:CB:D was manufactured by or for PREO INDUSTRIES FAR EAST LTD.