Arunachal Pradesh, West Kemang district, Nafra circle, Bichom and Pakesa river valley, 25 villages including Debbing, Dichik, Rurang, Nachinghom, Upper Dzang, Naku, Khellong, Dibrick, Nizong, Najang, Zangnaching, Chalang, Nafra, and Lower Dzang; East Kameng district, Bameng and Lada circles, Wakke, Nabolong, Kojo, Rojo, Sekong, Panker, Zarkam, Drackchi, Besai, Naschgzang, Sachung, Gerangzing, Kampaa, Salang, Pego, and Dongko villages.
Generally considered in the Mirish subgroup. Completely dissimilar to any surrounding language. Lexical similarity: 54%–65% between varieties of West and East Kameng; 54%–83% between all varieties.
A Scheduled Tribe. Traditional religion, Christian.