Robtex

Up: 103.31.152.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 103.31.156.0/23
Down right: 103.31.158.0/23

IP	Type	Hostname
103.31.156.1	PTR	1.156.31.103.cni.net.id
103.31.156.79	PTR	79.156.31.103.cni.net.id
103.31.156.197	PTR	197.156.31.103.cni.net.id
103.31.157.10	A	bluppp.us
103.31.157.106	PTR	106.157.31.103.cni.net.id
103.31.157.206	PTR	206.157.31.103.cni.net.id
103.31.157.210	PTR	210.157.31.103.cni.net.id
103.31.159.2	A+PTR	svr.mail01.cni.net.id
103.31.159.2	A	smtp.platinum.net.id
103.31.159.2	A	mail.multimedia.co.id
103.31.159.3	A+PTR	svr2.mail02.cni.net.id
103.31.159.10	A+PTR	mxgw.cni.net.id
103.31.159.10	A	gmx.cni.net.id
103.31.159.81	PTR	81.159.31.103.cni.net.id