Garganta

（ガルガンタ）, Garuganta; Spanish for "throat") Garganta is how Arrancar move to and from Hueco Mundo. It literally tears open the dimensional fabric separating the worlds, revealing a tunnel of whirling, torrential energy that must be focused and solidified to create a discernible pathway. It is primarily used by Hollow and Arrancar, but some other characters have used it through different means.

Arrancar Users
Yammy Ulquiorra Schiffer Grimmjow Jeagerjaques Shawlong Kūfang Nakeem Edrad Liones Yylfordt Granz ) Di Roy Luppi Wonderweiss Margera Stark Barragan Luisenbarn Halibel Lilinette Avirama Redder Charlotte Cuuhlhourne Findor Carias Ggio Vega Pō Unnamed Fracción Apache Mila-Rose Sun-Sun

Arrancar Not Seen Using Garganta, but have the Ability
Nnoitra Jiruga Szayel Aporro Granz Zommari Leroux Aaroniero Arruruerie

Shinigami Users
Sōsuke Aizen Kaname Tōsen Gin Ichimaru Kisuke Urahara (through his own invention) Uryū Ishida (through Urahara's Invention) Ichigo Kurosaki (through Urahara's Invention) Yasutora Sado (through Urahara's Invention) Byakuya Kuchiki (through Urahara's Invention) Retsu Unohana (through Urahara's Invention) Kenpachi Zaraki (through Urahara's Invention) Mayuri Kurotsuchi (through Urahara's Invention)

Also, ALL HOLLLOW can use Garganta that are above Menos Gillian level.