What this means
The IEEE assigned the MA-L block 00F403 to Orbis Systems Oy. 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:F4:03, it is Orbis Systems Oy hardware.
Frequently Asked Questions
Who owns MAC prefix 00F403?
00F403 is registered to Orbis Systems Oy 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. Orbis Systems Oy's block covers 16,777,216 addresses.
What devices use 00F403?
Any network device with a MAC address starting 00:F4:03 was manufactured by or for Orbis Systems Oy.