What this means
The IEEE assigned the MA-S block 70B3D56D8 to Shanghai YuanAn Environmental Protection Technology 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:D5:6D:8, it is Shanghai YuanAn Environmental Protection Technology Co.,Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D56D8?
70B3D56D8 is registered to Shanghai YuanAn Environmental Protection Technology 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. Shanghai YuanAn Environmental Protection Technology Co.,Ltd's block covers 4,096 addresses.
What devices use 70B3D56D8?
Any network device with a MAC address starting 70:B3:D5:6D:8 was manufactured by or for Shanghai YuanAn Environmental Protection Technology Co.,Ltd.