What this means
The IEEE assigned the MA-L block B4E0CD to Fusion-io, Inc. 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 B4:E0:CD, it is Fusion-io, Inc hardware.
Frequently Asked Questions
Who owns MAC prefix B4E0CD?
B4E0CD is registered to Fusion-io, Inc 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. Fusion-io, Inc's block covers 16,777,216 addresses.
What devices use B4E0CD?
Any network device with a MAC address starting B4:E0:CD was manufactured by or for Fusion-io, Inc.