Robtex

Up: 58.251.12.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 58.251.13.0/25
Down right: 58.251.13.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
58.251.13.2	PTR	reverse.gdsz.cncnet.net
58.251.13.26	A	o-ta.com.cn
58.251.13.26	A	dns1.o-ta.com.cn
58.251.13.35	A	twinkle.com.cn
58.251.13.35	A	gmmail.twinkle.com.cn
58.251.13.77	PTR	reverse.gdsz.cncnet.net
58.251.13.77	A	kangcheng03.kmras.com
58.251.13.81	PTR	reverse.gdsz.cncnet.net
58.251.13.89	A	mx.fuchuangphw.com
58.251.13.167	PTR	reverse.gdsz.cncnet.net
58.251.13.181	PTR	reverse.gdsz.cncnet.net
58.251.13.181	A	onward.hk
58.251.13.203	PTR	reverse.gdsz.cncnet.net
58.251.13.204	PTR	reverse.gdsz.cncnet.net
58.251.13.207	PTR	reverse.gdsz.cncnet.net
58.251.13.216	PTR	reverse.gdsz.cncnet.net
58.251.13.218	A+PTR	mail.along.cc
58.251.13.232	PTR	reverse.gdsz.cncnet.net
58.251.13.250	PTR	reverse.gdsz.cncnet.net
58.251.13.250	A	linoya.com
58.251.13.250	A	*.linoya.com