What this means
The IEEE assigned the MA-L block 000F05 to 3B SYSTEM 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 00:0F:05, it is 3B SYSTEM INC. hardware.
Frequently Asked Questions
Who owns MAC prefix 000F05?
000F05 is registered to 3B SYSTEM 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. 3B SYSTEM INC.'s block covers 16,777,216 addresses.
What devices use 000F05?
Any network device with a MAC address starting 00:0F:05 was manufactured by or for 3B SYSTEM INC..