Divisions Districts[64] East (HQ:Namsai, Namsai District) Lohit District, Anjaw District, Changlang District, Tirap District, Lower Dibang Valley District, East Siang District, Upper Siang District, Namsai District, Siang District, Longding District, Dibang Valley District West (HQ: Yazali, Lower Subansiri) Tawang District, West Kameng District, East Kameng District, Papum Pare District, Kurung Kumey District, Kra Daadi District, West Siang District, Lower Siang District, Upper Subansiri District, Papum Pare District, Kamle District, Lower Subansiri District, Pakke-Kessang District, Lepa-Rada District, Shi-Yomi District