Robtex

Up: 110.138.224.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 110.138.232.0/22
Down right: 110.138.236.0/22

IP	Type	Hostname
110.138.232.73	PTR	73.subnet110-138-232.speedy.telkom.net.id
110.138.232.155	PTR	155.subnet110-138-232.speedy.telkom.net.id
110.138.232.168	PTR	168.subnet110-138-232.speedy.telkom.net.id
110.138.233.137	PTR	137.subnet110-138-233.speedy.telkom.net.id
110.138.234.64	PTR	64.subnet110-138-234.speedy.telkom.net.id
110.138.235.2	PTR	2.subnet110-138-235.speedy.telkom.net.id
110.138.235.123	PTR	123.subnet110-138-235.speedy.telkom.net.id
110.138.235.129	PTR	129.subnet110-138-235.speedy.telkom.net.id
110.138.236.73	PTR	73.subnet110-138-236.speedy.telkom.net.id
110.138.236.83	A	ns1.smkn5malang.sch.id
110.138.236.147	PTR	147.subnet110-138-236.speedy.telkom.net.id
110.138.236.153	PTR	153.subnet110-138-236.speedy.telkom.net.id
110.138.236.208	PTR	208.subnet110-138-236.speedy.telkom.net.id
110.138.236.217	PTR	217.subnet110-138-236.speedy.telkom.net.id
110.138.236.224	PTR	224.subnet110-138-236.speedy.telkom.net.id
110.138.236.227	PTR	227.subnet110-138-236.speedy.telkom.net.id
110.138.236.241	PTR	241.subnet110-138-236.speedy.telkom.net.id
110.138.237.10	PTR	10.subnet110-138-237.speedy.telkom.net.id
110.138.237.16	PTR	16.subnet110-138-237.speedy.telkom.net.id
110.138.237.57	PTR	57.subnet110-138-237.speedy.telkom.net.id
110.138.237.187	PTR	187.subnet110-138-237.speedy.telkom.net.id
110.138.238.3	PTR	3.subnet110-138-238.speedy.telkom.net.id
110.138.238.75	PTR	75.subnet110-138-238.speedy.telkom.net.id
110.138.239.3	PTR	3.subnet110-138-239.speedy.telkom.net.id
110.138.239.67	PTR	67.subnet110-138-239.speedy.telkom.net.id
110.138.239.171	PTR	171.subnet110-138-239.speedy.telkom.net.id
110.138.239.176	PTR	176.subnet110-138-239.speedy.telkom.net.id
110.138.239.203	PTR	203.subnet110-138-239.speedy.telkom.net.id