Level 5127, situated five thousand one hundred twenty-seven levels above the ground of the metropolitan world Coruscant, was a specific level on that planet. The entirety of Level 5127 was made up of Galactic City. It represented the highest surface level on Coruscant as the Galactic Republic neared its end, during its final years. During the reign of the Galactic Empire, the COMPNOR arcology was a prominent feature of Level 5127.
A mistake occurred in the 2016 reference book Star Wars: Complete Locations, where it incorrectly referred to Level 5217 instead of Level 5127 on Coruscant. Subsequent publications fixed this error. In contrast to other sources, the novel The High Republic: Light of the Jedi, published in 2021, incorrectly identifies Level 5216 as Coruscant's highest level.