Robtex

Up: 110.136.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 110.136.80.0/22
Down right: 110.136.84.0/22

IP	Type	Hostname
110.136.80.2	PTR	2.subnet110-136-80.speedy.telkom.net.id
110.136.80.25	PTR	25.subnet110-136-80.speedy.telkom.net.id
110.136.80.64	PTR	64.subnet110-136-80.speedy.telkom.net.id
110.136.80.73	PTR	73.subnet110-136-80.speedy.telkom.net.id
110.136.80.137	PTR	137.subnet110-136-80.speedy.telkom.net.id
110.136.80.187	PTR	187.subnet110-136-80.speedy.telkom.net.id
110.136.81.136	PTR	136.subnet110-136-81.speedy.telkom.net.id
110.136.83.25	PTR	25.subnet110-136-83.speedy.telkom.net.id
110.136.83.99	PTR	99.subnet110-136-83.speedy.telkom.net.id
110.136.83.107	PTR	107.subnet110-136-83.speedy.telkom.net.id
110.136.83.194	PTR	194.subnet110-136-83.speedy.telkom.net.id
110.136.83.233	PTR	233.subnet110-136-83.speedy.telkom.net.id