Nusa Tenggara Timur Province; Sumba island, eastern half.
Kambera, Melolo, Uma Ratu Nggai (Umbu Ratu Nggai), Lewa, Kanatang, Mangili-Waijelo (Rindi, Wai Jilu, Waidjelu, Waijelo), Southern Sumba. Dialect network. Kambera dialect is widely understood. Lewa and Uma Ratu Nggai dialects have difficulty understanding those from Mangili.
Latin script [Latn].
Christian, traditional religion.