What this means
The IEEE assigned the MA-S block 8C1F6457E to Guoqing (shangdong) Information 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 8C:1F:64:57:E, it is Guoqing (shangdong) Information Technology Co.,Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 8C1F6457E?
8C1F6457E is registered to Guoqing (shangdong) Information 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. Guoqing (shangdong) Information Technology Co.,Ltd's block covers 4,096 addresses.
What devices use 8C1F6457E?
Any network device with a MAC address starting 8C:1F:64:57:E was manufactured by or for Guoqing (shangdong) Information Technology Co.,Ltd.