Robtex

Up: 115.31.64.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 115.31.64.0/24
Down right: 115.31.65.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
115.31.65.6	PTR	happycomm.65.31.115.in-addr.arpa
115.31.65.6	A	data.oversea.cnki.net
115.31.65.6	A	cadt.cnki.net
115.31.65.10	PTR	happycomm.65.31.115.in-addr.arpa
115.31.65.10	A	cnki.net
115.31.65.33	PTR	happycomm.65.31.115.in-addr.arpa
115.31.65.33	A	cn.oversea.cnki.net
115.31.65.33	A	tongji.oversea.cnki.net
115.31.65.35	A	gb.obaor.cnki.net
115.31.65.35	A	csti.cnki.net
115.31.65.35	A	image2.cnki.net
115.31.65.36	PTR	happycomm.65.31.115.in-addr.arpa
115.31.65.36	A	ar.cnki.net
115.31.65.36	A	echeck.cnki.net