These two maps split the cube of each sector into 4 layers. On both maps, the largest circles represent the centermost layer, with each smaller circle representing one layer outwards from the dis. (Fortunately, I don't need to make one for the middle layer of the large map.)
In Sector A8, much of the lowest layer is claimed by Red, White, and Mantis states, but most of the highest layer is unclaimed space free for exploitation and settlement by independent outposts and companies.
In Sector C11, only the uppermost layer has significant territorial claims by the Giants, Hippos, Reptiles, and Drones. The third and fourth layer are completely unclaimed space.
And I guess it's getting time to start working on names for the species. I've settled in very comfortably with this set of species and don't expect any major changes going forward. (Probably only some individual low-tech planet species.) So there seems to be little reason to push out this most unpleasant task any further.