Its a faction ID so you shouldnt use it if you arent a part of the OSI.
However, the wiki ID doesnt state that you arent allowed to use it, wierd thing.
Yep, OSI ID is a closed ID, and not open accessible by anyone. Though no one atm outside OSI should be able to get one anyway.
Which leads me to the question: Why are you acutally asking about an ID you should actually not be able to get anyway, unless someone of OSI handed it out to you?
i was just looking over ids on the wiki and found this
Quote:Omicron Supply Industries ID
This ID is specific to Discovery Freelancer RP 24/7 and may not appear on other servers.
Pilot carrying this ID is a Zoner who:
Can attack lawful and unlawful targets in self-defense, to protect another trader, or in defense of Zoner bases.
ZONER ZONER ZONER