What this means

The IEEE assigned the MA-S block 8C1F64721 to M/S MILIND RAMACHANDRA RAJWADE. 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:64:72:1, it is M/S MILIND RAMACHANDRA RAJWADE hardware.