The comic called "The Uncanny X-Men" became "The Astonishing X-Men" during the Age of Apocalypse history arc.
Ultimate Astonishing X-Men collects Astonishing X-Men issue numbers 1 through 4 of this volume.
Collected EditionsX-Men: The Age of Apocalypse: Reign (#2-3)X-Men: Age of Apocalypse: Omega (#4)Non-U.S. Collected EditionsColeccionable Marvel Héroes - La Patrulla-X: La Era de Apocalipsis - Omega (#2-4) (Spanish)
— Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/astonishing-x-men/4050-5536/).
