What this means
The IEEE assigned the MA-L block 000038 to CSS LABS. 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 00:00:38, it is CSS LABS hardware.
Frequently Asked Questions
Who owns MAC prefix 000038?
000038 is registered to CSS LABS 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. CSS LABS's block covers 16,777,216 addresses.
What devices use 000038?
Any network device with a MAC address starting 00:00:38 was manufactured by or for CSS LABS.