Robtex

Up: 113.255.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 113.255.0.0/20
Down right: 113.255.16.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
113.255.0.1	A	t113-16.rrc03.ripe.net
113.255.1.173	PTR	173-1-255-113-on-nets.com
113.255.1.173	A	tommychan.net
113.255.3.247	PTR	247-3-255-113-on-nets.com
113.255.4.34	PTR	34-4-255-113-on-nets.com
113.255.4.34	A	synthz.net
113.255.7.86	PTR	86-7-255-113-on-nets.com
113.255.10.53	PTR	53-10-255-113-on-nets.com
113.255.10.53	A	nrqnrfr.mcvvtkxcifkd.hath.network
113.255.10.53	A	qgmqyuq.mcvvtkxcifkd.hath.network
113.255.12.74	PTR	74-12-255-113-on-nets.com
113.255.12.74	A	skylark1.myds.me
113.255.12.74	A	www.skylark1.myds.me
113.255.13.37	PTR	37-13-255-113-on-nets.com
113.255.13.37	A	lawrencewai.dyndns.org
113.255.15.188	A	mail.synthz.net
113.255.15.188	A	www.synthz.net
113.255.15.235	PTR	235-15-255-113-on-nets.com
113.255.20.252	A	cubbytech.com
113.255.26.26	A	iwworkshop.com
113.255.26.45	A	garysiu.com