Robtex

Up: 110.138.88.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 110.138.92.0/23
Down right: 110.138.94.0/23

IP	Type	Hostname
110.138.92.6	PTR	6.subnet110-138-92.speedy.telkom.net.id
110.138.92.118	PTR	118.subnet110-138-92.speedy.telkom.net.id
110.138.92.139	PTR	139.subnet110-138-92.speedy.telkom.net.id
110.138.92.159	PTR	159.subnet110-138-92.speedy.telkom.net.id
110.138.92.182	PTR	182.subnet110-138-92.speedy.telkom.net.id
110.138.92.213	PTR	213.subnet110-138-92.speedy.telkom.net.id
110.138.93.27	PTR	27.subnet110-138-93.speedy.telkom.net.id
110.138.93.55	PTR	55.subnet110-138-93.speedy.telkom.net.id
110.138.93.102	PTR	102.subnet110-138-93.speedy.telkom.net.id
110.138.93.113	PTR	113.subnet110-138-93.speedy.telkom.net.id
110.138.93.156	PTR	156.subnet110-138-93.speedy.telkom.net.id
110.138.93.179	PTR	179.subnet110-138-93.speedy.telkom.net.id
110.138.93.185	PTR	185.subnet110-138-93.speedy.telkom.net.id
110.138.93.218	PTR	218.subnet110-138-93.speedy.telkom.net.id
110.138.93.255	PTR	255.subnet110-138-93.speedy.telkom.net.id
110.138.94.12	PTR	12.subnet110-138-94.speedy.telkom.net.id
110.138.94.56	PTR	56.subnet110-138-94.speedy.telkom.net.id
110.138.94.64	PTR	64.subnet110-138-94.speedy.telkom.net.id
110.138.94.190	PTR	190.subnet110-138-94.speedy.telkom.net.id
110.138.94.227	PTR	227.subnet110-138-94.speedy.telkom.net.id
110.138.94.246	PTR	246.subnet110-138-94.speedy.telkom.net.id
110.138.94.254	PTR	254.subnet110-138-94.speedy.telkom.net.id
110.138.95.7	PTR	7.subnet110-138-95.speedy.telkom.net.id
110.138.95.25	PTR	25.subnet110-138-95.speedy.telkom.net.id
110.138.95.62	PTR	62.subnet110-138-95.speedy.telkom.net.id
110.138.95.63	PTR	63.subnet110-138-95.speedy.telkom.net.id
110.138.95.97	PTR	97.subnet110-138-95.speedy.telkom.net.id
110.138.95.142	PTR	142.subnet110-138-95.speedy.telkom.net.id
110.138.95.248	PTR	248.subnet110-138-95.speedy.telkom.net.id