Enga Province
Glottolog classifies Nete and Bisorio as two languages within Outer Engan, a divergent group situated northward across the Central Range from the main Engan-speaking area, located in Enga Province. The purported language Bikaru, spoken at the head of the Korosamen River adjacent to the Nete dialect-speaking area, is a dialect of Bisorio fully mutually intelligible with the rest of the language.