Robtex

Up: 110.139.64.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 110.139.68.0/23
Down right: 110.139.70.0/23

IP	Type	Hostname
110.139.68.84	PTR	84.subnet110-139-68.speedy.telkom.net.id
110.139.68.228	PTR	228.subnet110-139-68.speedy.telkom.net.id
110.139.68.248	PTR	248.subnet110-139-68.speedy.telkom.net.id
110.139.69.79	PTR	79.subnet110-139-69.speedy.telkom.net.id
110.139.69.81	PTR	81.subnet110-139-69.speedy.telkom.net.id
110.139.69.159	PTR	159.subnet110-139-69.speedy.telkom.net.id
110.139.69.183	PTR	183.subnet110-139-69.speedy.telkom.net.id
110.139.69.203	PTR	203.subnet110-139-69.speedy.telkom.net.id
110.139.69.214	PTR	214.subnet110-139-69.speedy.telkom.net.id
110.139.69.230	PTR	230.subnet110-139-69.speedy.telkom.net.id
110.139.69.237	PTR	237.subnet110-139-69.speedy.telkom.net.id
110.139.69.243	PTR	243.subnet110-139-69.speedy.telkom.net.id
110.139.70.11	PTR	11.subnet110-139-70.speedy.telkom.net.id
110.139.70.30	PTR	30.subnet110-139-70.speedy.telkom.net.id
110.139.70.52	PTR	52.subnet110-139-70.speedy.telkom.net.id
110.139.70.66	PTR	66.subnet110-139-70.speedy.telkom.net.id
110.139.70.177	PTR	177.subnet110-139-70.speedy.telkom.net.id
110.139.71.56	PTR	56.subnet110-139-71.speedy.telkom.net.id
110.139.71.193	PTR	193.subnet110-139-71.speedy.telkom.net.id
110.139.71.210	PTR	210.subnet110-139-71.speedy.telkom.net.id