What this means
The IEEE assigned the MA-L block BC39D9 to Z-TEC. 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 BC:39:D9, it is Z-TEC hardware.
Frequently Asked Questions
Who owns MAC prefix BC39D9?
BC39D9 is registered to Z-TEC 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. Z-TEC's block covers 16,777,216 addresses.
What devices use BC39D9?
Any network device with a MAC address starting BC:39:D9 was manufactured by or for Z-TEC.