What this means

The IEEE assigned the MA-M block 2C6A6F2 to NanChang LangJie 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 2C:6A:6F:2, it is NanChang LangJie Technology Co.,Ltd hardware.