Result
Mac address for 54EF5B
Company / Vendor
Science Corporation
Prefix
54EF5B
Database Type
IEEE MA-L
Start Mac Address
54EF5B000000
End Mac Address
54EF5BFFFFFF
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