Isiri'thantor Branch
Because the Plane of Isiri'thantor is such a massive hub-plane, connecting dozens of other planes (and their attendant sub-branches) to one another, the region surrounding it is generally known as the Isiri'thantor Branch.
Because the Plane of Isiri'thantor is such a massive hub-plane, connecting dozens of other planes (and their attendant sub-branches) to one another, the region surrounding it is generally known as the Isiri'thantor Branch.