Result
Mac address for 000C21
Company / Vendor
Faculty of Science and Technology, Keio University
Prefix
000C21
Database Type
IEEE MA-L
Start Mac Address
000C21000000
End Mac Address
000C21FFFFFF
Company Address
Possible Devices
16777216
This number represents the possible device number that can be manufactured using this mac address, but doesn't mean it is all has been manufactured yet
Link