Result
Mac address for 10003B
Company / Vendor
Espressif Inc.
Prefix
10003B
Database Type
IEEE MA-L
Start Mac Address
10003B000000
End Mac Address
10003BFFFFFF
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