What this means
The IEEE assigned the MA-L block 0011B6 to Open Systems International. 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 00:11:B6, it is Open Systems International hardware.
Frequently Asked Questions
Who owns MAC prefix 0011B6?
0011B6 is registered to Open Systems International 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. Open Systems International's block covers 16,777,216 addresses.
What devices use 0011B6?
Any network device with a MAC address starting 00:11:B6 was manufactured by or for Open Systems International.