Robtex

Up: 192.70.242.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 192.70.242.0/25
Down right: 192.70.242.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.70.242.15	A+PTR	iucrweb.iucr.org
192.70.242.15	A	iycr2014.org
192.70.242.15	A	www.iucr.org
192.70.242.27	A+PTR	publcif.iucr.org
192.70.242.29	A	mailx.iucr.org
192.70.242.40	A+PTR	dns0.iucr.org
192.70.242.40	A+PTR	galena.iucr.org
192.70.242.40	A+PTR	dns0.iucr.ac.uk
192.70.242.41	A+PTR	mailserver.iucr.org
192.70.242.41	A	smtp.iucr.org
192.70.242.75	A	brianite.iucr.org
192.70.242.90	A+PTR	matrix.iucr.org
192.70.242.91	PTR	dns1.iucr.org
192.70.242.91	A+PTR	dns1.iucr.ac.uk
192.70.242.91	A	www.iucr.ac.uk
192.70.242.92	A	scripts.iucr.org
192.70.242.92	A	platon.iucr.org
192.70.242.92	A	dynhost1.iucr.org
192.70.242.100	A+PTR	iucrasg.iucr.org
192.70.242.108	A+PTR	www.iucr.org
192.70.242.108	A	iucr.org
192.70.242.140	A	galena2.iucr.org