What this means
The IEEE assigned the MA-L block 947F1D to Shenzhen Fastrain 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 94:7F:1D, it is Shenzhen Fastrain Technology Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 947F1D?
947F1D is registered to Shenzhen Fastrain Technology Co., Ltd. in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Shenzhen Fastrain Technology Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 947F1D?
Any network device with a MAC address starting 94:7F:1D was manufactured by or for Shenzhen Fastrain Technology Co., Ltd..