Result
Mac address for 0004B1
Company / Vendor
Signal Technology, Inc.
Prefix
0004B1
Database Type
IEEE MA-L
Start Mac Address
0004B1000000
End Mac Address
0004B1FFFFFF
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