What this means
The IEEE assigned the MA-L block 50F003 to Open Stack, 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 50:F0:03, it is Open Stack, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 50F003?
50F003 is registered to Open Stack, 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. Open Stack, Inc.'s block covers 16,777,216 addresses.
What devices use 50F003?
Any network device with a MAC address starting 50:F0:03 was manufactured by or for Open Stack, Inc..