What this means
The IEEE assigned the MA-S block 8C1F64692 to Nexilis Electronics India Pvt Ltd (PICSYS). 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:64:69:2, it is Nexilis Electronics India Pvt Ltd (PICSYS) hardware.