Unnamed Alpha and Beta Quadrant sectors

Multiple realities
(covers information from several alternate timelines)

The following is a list of unnamed sectors.

Sector attacked by Nausicaans

In this sector, Earth Cargo Service freighters were frequently attacked, over a time period lasting years, by Nausicaan pirates. Travis Mayweather knew about the sector and the repeated attacks within it. One of the freighters which were assaulted in this area was the ECS Fortunate, which consequently sustained heavy damage, in 2151. When Enterprise NX-01 arrived to investigate the aftermath of the battle, the starship's crew found no other ships in the region. Despite subsequent onslaughts by the Nausicaans, Matthew Ryan, who was temporarily in command of the Fortunate, refused Enterprise's help, which his commanding officer, Captain Jackson Keene, reasoned was due to Ryan and others who had grown up on the freighter feeling that they had some special claim to ownership of this particular stretch of space and typically became jumpy when they saw another ship within ten light years. After Keene resumed command of the Fortunate, Enterprise departed from the area. (ENT: "Fortunate Son")

In the first draft script of "Fortunate Son", Captain Archer recommended setting up regular patrols in this sector, to protect the freighters. However, Admiral Forrest, doubtful that plan would work, replied that the sector was "pretty big." Later in the teleplay, a freighter called the Gallant (later renamed the ECS North Star) was said to have been destroyed by Nausicaans in the same sector, a few years beforehand. In the final edit of the episode, however, the word "sector" is only mentioned once, when Mayweather tells Archer that Nausicaan pirates had been "attacking freighters in this sector for years."

Sector containing Arkaria

The sector containing Arkaria was notable for having several cultures with extremely similar etymological histories. (TNG: "Starship Mine")

Sector containing Avery system

This sector contained the Avery system, which housed a Vidiian base. The sector was visited by USS Voyager in 2371. (VOY: "Faces")

Sector containing Hanon IV

In 2373, after the Voth scientists Forra Gegen made a startling discovery on Hanon IV, he called for mounting a sector-wide expedition in order to find the ship from which it originated. (VOY: "Distant Origin")

Sector containing penal moon

This sector contained a penal moon for the members of the factions Ennis and Nol-Ennis in the Gamma Quadrant. The Federation had begun exploration of this sector after the discovery of the Bajoran wormhole in 2369. (DS9: "Battle Lines")

Sector containing Rinax

This sector contained Rinax, which featured the hottest summers in the sector. (VOY: "Macrocosm")

Since Rinax was a moon of Talax, Talax was presumably located in the same sector.

Sector containing System L-370

This Alpha or Beta quadrant sector contained several solar systems, including L-370 and L-374. (TOS: "The Doomsday Machine")

Sector containing Taurean system

This sector contained the Taurean system. Earth vessels associated with the Federation had visited it for at least a century and a half before 2269. However, despite it long having been trafficked, Starfleet by 2269 still considered it an unfamiliar sector. Klingon and Romulan ships had visited the sector for some time as well, and ships from all three powers had disappeared in mysterious circumstances there. (TAS: "The Lorelei Signal")

Sector in Nasari territory

The "region" Voyager was said to be in while in this sector. Map includes the Taresian system.

USS Voyager was welcomed into Nasari territory while passing through this sector in 2373.

The sector also contained a trinary star, of which Chakotay decided to mark the coordinates as it would be a good reference point for the sector. (VOY: "Favorite Son")

Sector in which Danara Pel was found

USS Voyager traversed this sector in 2372. Here, it found the distressed Vidiian ship carrying Doctor Danara Pel. No other Vidiian ships were detected in the sector. (VOY: "Lifesigns")

Sector known for Porakan eggs

This sector, visited by USS Voyager in early 2372, contained the planet Porakas IV. The Porakan eggs from that planet were known as the most flavorful eggs in the sector. (VOY: "Flashback")

Sector scanned by Tom Paris

As part of his historic Warp 10 flight in 2372, Tom Paris collected data on every cubic centimetre of the sector USS Voyager was then in. Over five billion gigaquads of information were collected. (VOY: "Threshold")

Sector with large plasma drift

This sector, traversed by USS Voyager in 2372, contained a large plasma drift extending almost half its length. It also contained a Vidiian-controlled G-type star system and heavy Vidiian activity in general, with twenty Vidiian ships detected. (VOY: "Deadlock")

Supernova sector

In 2373, three stars within the same cluster went supernova in less then three days, due to the Q Civil War. (VOY: "The Q and the Grey")

Swarm territory sectors

Based on what appeared to be the borders of the Swarm species' territory, they were extrapolated to occupy hundreds of sectors. (VOY: "The Swarm")

Triona system sector

This remote sector contained the Triona system. Its isolation led Beverly Crusher to speculate that Lieutenant Keith Rocha could have been absorbed by a coalescent organism while posted there. (TNG: "Aquiel")

Uncharted Necro Cloud sector

The "escape pod" on which Kalara arived at Starbase Yorktown in 2263 was tracked to coordinates 210 mark 14, in a sector of an uncharted nebula, the Necro Cloud. The area was uncharted due to the nebula being too dense. The USS Enterprise subsequently managed to penetrate the area, finding the planet Altamid. (Star Trek Beyond)