The Ateleth class was a tier 6 Xindi-Primate dreadnought cruiser in service since at least the 22nd century. In the 2150s, ships of this class served as warships. By the early 25th century, Ateleth-class starships had been upgraded to serve as carriers and were much larger than their older cousings. (ENT episodes: "E²", "The Council", "Countdown"; STO video game: The Iconian War)