Robtex

Up: 110.139.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 110.139.32.0/23
Down right: 110.139.34.0/23

IP	Type	Hostname
110.139.33.17	PTR	17.subnet110-139-33.speedy.telkom.net.id
110.139.33.30	PTR	30.subnet110-139-33.speedy.telkom.net.id
110.139.33.39	PTR	39.subnet110-139-33.speedy.telkom.net.id
110.139.33.44	PTR	44.subnet110-139-33.speedy.telkom.net.id
110.139.33.55	PTR	55.subnet110-139-33.speedy.telkom.net.id
110.139.33.62	PTR	62.subnet110-139-33.speedy.telkom.net.id
110.139.33.69	PTR	69.subnet110-139-33.speedy.telkom.net.id
110.139.33.80	PTR	80.subnet110-139-33.speedy.telkom.net.id
110.139.33.99	PTR	99.subnet110-139-33.speedy.telkom.net.id
110.139.33.101	PTR	101.subnet110-139-33.speedy.telkom.net.id
110.139.33.103	PTR	103.subnet110-139-33.speedy.telkom.net.id
110.139.33.169	PTR	169.subnet110-139-33.speedy.telkom.net.id
110.139.33.183	PTR	183.subnet110-139-33.speedy.telkom.net.id
110.139.33.212	PTR	212.subnet110-139-33.speedy.telkom.net.id
110.139.33.214	PTR	214.subnet110-139-33.speedy.telkom.net.id
110.139.33.247	PTR	247.subnet110-139-33.speedy.telkom.net.id
110.139.34.31	PTR	31.subnet110-139-34.speedy.telkom.net.id
110.139.34.55	PTR	55.subnet110-139-34.speedy.telkom.net.id
110.139.34.66	PTR	66.subnet110-139-34.speedy.telkom.net.id
110.139.34.68	PTR	68.subnet110-139-34.speedy.telkom.net.id
110.139.34.75	PTR	75.subnet110-139-34.speedy.telkom.net.id
110.139.34.83	PTR	83.subnet110-139-34.speedy.telkom.net.id
110.139.34.97	PTR	97.subnet110-139-34.speedy.telkom.net.id
110.139.34.110	PTR	110.subnet110-139-34.speedy.telkom.net.id
110.139.34.124	PTR	124.subnet110-139-34.speedy.telkom.net.id
110.139.34.185	PTR	185.subnet110-139-34.speedy.telkom.net.id
110.139.34.199	PTR	199.subnet110-139-34.speedy.telkom.net.id
110.139.34.203	PTR	203.subnet110-139-34.speedy.telkom.net.id
110.139.34.249	PTR	249.subnet110-139-34.speedy.telkom.net.id