L1 users: 40,000 (Tjia 2007).
Kalimantan Barat province: Belitang, Belitang Hilir, and Belitang Hulu Sekadau sub-districts along Ayak and Belitang rivers.
Mualang Ili’, Mualang Ulu. Reportedly similar to Iban [iba]; however only one-way intelligibility from Mualang to Iban.
Language shift reportedly taking place in the younger generation. Positive attitudes.
Latin script [Latn], in development.