Trantor, the original planet for Trantor pigeons, was a planet-wide city, or ecumenopolis, situated in the Trantor system within the Core Worlds. It was their homeworld.
Paul Sudlow penned the first mention of Trantor in the "Galaxywide NewsNets" segment. This appeared in the eighth issue of the Star Wars Adventure Journal magazine, released in November of 1995 by West End Games. Trantor was envisioned as an allusion to the identically named city-planet from Isaac Asimov's Foundation series.