What this means
The IEEE assigned the MA-L block 3889DC to Opticon Sensors Europe B.V.. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 38:89:DC, it is Opticon Sensors Europe B.V. hardware.
Frequently Asked Questions
Who owns MAC prefix 3889DC?
3889DC is registered to Opticon Sensors Europe B.V. in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Opticon Sensors Europe B.V.'s block covers 16,777,216 addresses.
What devices use 3889DC?
Any network device with a MAC address starting 38:89:DC was manufactured by or for Opticon Sensors Europe B.V..