What this means
The IEEE assigned the MA-S block 70B3D5660 to Smart Service Technologies CO., 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:D5:66:0, it is Smart Service Technologies CO., LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D5660?
70B3D5660 is registered to Smart Service Technologies CO., 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. Smart Service Technologies CO., LTD's block covers 4,096 addresses.
What devices use 70B3D5660?
Any network device with a MAC address starting 70:B3:D5:66:0 was manufactured by or for Smart Service Technologies CO., LTD.