What this means
The IEEE assigned the MA-S block 70B3D5FA5 to Shenzhen Hui Rui Tianyan 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:FA:5, it is Shenzhen Hui Rui Tianyan Technology Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D5FA5?
70B3D5FA5 is registered to Shenzhen Hui Rui Tianyan 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. Shenzhen Hui Rui Tianyan Technology Co., Ltd.'s block covers 4,096 addresses.
What devices use 70B3D5FA5?
Any network device with a MAC address starting 70:B3:D5:FA:5 was manufactured by or for Shenzhen Hui Rui Tianyan Technology Co., Ltd..