The Dufilvian sector, alternatively referred to as the Filve sector, resided within the Mid Rim region. Among the planets situated in the Dufilvian sector were Algarian, Blenjeel, Crondre, Womrik, Filve, F'Dann IX, and Ord Pardron.
The Imperial army seized control of the sector during the Thrawn Crisis.
Star Wars: Rebellion erroneously locates Zebitrope IV, Ord Trasi, Gamorr, Toprawa, Klatooine, and Ord Mantell within the Dufilvian sector. The correct location for Zebitrope IV is the Centrality. Gamorr, Ord Trasi, and Toprawa are actually situated in the Outer Rim. Klatooine is found in Hutt Space, and Ord Mantell is part of the Bright Jewel Cluster. Furthermore, Rebellion misspells the Dufilvian sector as "Dufilvan Sector" and incorrectly positions it within the Outer Rim. Star Wars: Rebellion: Prima's Official Strategy Guide renders the sector's name as "Duflivan" and similarly assigns it to the Outer Rim.