What this means
The IEEE assigned the MA-L block B856BD to ITT LLC. 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 B8:56:BD, it is ITT LLC hardware.
Frequently Asked Questions
Who owns MAC prefix B856BD?
B856BD is registered to ITT LLC 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. ITT LLC's block covers 16,777,216 addresses.
What devices use B856BD?
Any network device with a MAC address starting B8:56:BD was manufactured by or for ITT LLC.