Alternate Names: Bulud Upi, Eraans, Idaan, Idahan, Idan, Idayan
Dialects: Begak (Bagahak, Begahak), Ida’an, Subpan (Sungai, Supan). Not closely related to other languages.
Genealogy:
Demographics: 10,000 (2013 SIL). Population includes 1,500 Begak.
Language Use: Some young people, all adults. Also use Central Dusun [dtp], Malay [zlm], Sabah Malay [msi].
Language Development: Grammar. Bible portions: 1987–2011.
Writing System: Latin
Nation of Origin: Malaysia