Robtex

Up: 43.252.8.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 43.252.8.0/23
Down right: 43.252.10.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
43.252.8.2	A	mail.syafari.com
43.252.8.2	A	mx2.syafari.com
43.252.8.2	A	mx1.syafari.com
43.252.8.3	PTR	mail.paidesign.com
43.252.8.150	PTR	43-252-8-150.quantum.net.id
43.252.9.2	PTR	43-252-9-2.quantum.net.id
43.252.9.148	PTR	mx-out.ciputragolf.com
43.252.9.148	A	mail.ciputragolf.com
43.252.9.149	PTR	43-252-9-149.quantum.net.id
43.252.9.149	A	www.ciputragolf.com
43.252.10.17	PTR	43-252-10-17.quantum.net.id
43.252.10.17	A	terrakaraoke.com
43.252.10.17	A	orico-indonesia.com
43.252.10.67	PTR	43-252-10-67.quantum.net.id
43.252.10.67	A	centerpulsamulti.com
43.252.10.68	PTR	43-252-10-68.quantum.net.id
43.252.10.68	A	balikpapan.ngtopup.net
43.252.10.93	PTR	43-252-10-93.quantum.net.id
43.252.10.94	PTR	43-252-10-94.quantum.net.id
43.252.10.94	A	fantasi-ai.com
43.252.11.4	PTR	43-252-11-4.quantum.net.id
43.252.11.167	A+PTR	mail.xptlp.com
43.252.11.245	PTR	43-252-11-245.quantum.net.id