History and specifics
The Dis vicinity was in neutral space unclaimed by major governments, and contains a resource of mycelium spores. By the 23rd century in the Kelvin timeline, the only notable known nearby system was Cillers in the Romulan Star Empire. (ST video game: Fleet Command)
While Fleet Command does not establish quadrant locations for game settings, the placement as a system connecting to the Romulan Star Empire strongly indicates that this system is in the galaxy's Beta Quadrant. However, the fact that some parts of Romulan space cross into the Alpha Quadrant in other sources casts doubt on that being sufficient evidence to definitively state a quadrant location for the purposes of this wiki.