Result
Mac address for 001B81
Company / Vendor
DATAQ Instruments, Inc.
Prefix
001B81
Database Type
IEEE MA-L
Start Mac Address
001B81000000
End Mac Address
001B81FFFFFF
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