What this means
The IEEE assigned the MA-L block BC764E to Rackspace US, 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 BC:76:4E, it is Rackspace US, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix BC764E?
BC764E is registered to Rackspace US, 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. Rackspace US, Inc.'s block covers 16,777,216 addresses.
What devices use BC764E?
Any network device with a MAC address starting BC:76:4E was manufactured by or for Rackspace US, Inc..