Isnag

https://en.wikipedia.org/wiki/Isnag_people
The Isnag people (also referred to as the Isneg and Apayao) are an Austronesian ethnic group native to Apayao Province in the Philippines' Cordillera Administrative Region. Their native language is Isneg (also called Isnag), although most Isnag also speak Ilokano.

Two major sub-groups among the Isnag are known: the Ymandaya, mostly concentrated in the municipality of Calanasan; and the Imallod, with populations distributed among the other towns of the province. Isnag populations can also be found in the eastern part of the adjacent Provinces of Ilocos Norte and Cagayan.