Robtex

Up: 138.231.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 138.231.128.0/18
Down right: 138.231.192.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
138.231.136.1	PTR	zamok-ens.crans.org
138.231.136.1	A	clubs.ens-cachan.fr
138.231.136.1	A	stephane.glondu.net
138.231.136.3	A+PTR	komaz.crans.org
138.231.136.8	PTR	ns1.crans.ens-cachan.fr
138.231.136.67	A	www.crans.org
138.231.136.145	A+PTR	proxy.crans.org
138.231.136.145	A	crans.fr
138.231.136.145	A	www.crans.org
138.231.137.21	PTR	bornebora.crans.org
138.231.137.21	A	coliss.one
138.231.137.208	A	crom.crans.org
138.231.137.208	A	crom.rezometz.org
138.231.138.199	A+PTR	bob.crans.org
138.231.139.182	A+PTR	hpbenoit.crans.org
138.231.139.244	A	bde.ens-cachan.fr
138.231.141.10	A+PTR	ares.crans.org
138.231.141.10	A	ns2.ares.fr
138.231.141.10	A	ares.fr
138.231.141.20	PTR	gala.crans.org
138.231.141.138	A+PTR	pave1.crans.org
138.231.142.57	A	praccis.fr
138.231.142.239	A	parangon.federez.net
138.231.143.10	A+PTR	acoeur.crans.org
138.231.143.10	A	acoeur.org
138.231.143.18	PTR	mustafar.crans.org
138.231.143.18	A	mustafar.rez-rennes.fr
138.231.143.18	A	mustafar.federez.org
138.231.143.198	A+PTR	armandpc.crans.org
138.231.147.65	A	002.wifi.crans.org
138.231.160.7	A	siolms.pro
138.231.160.7	A	www.siolms.pro
138.231.160.254	PTR	nexscreen.lms.ens-cachan.fr
138.231.168.3	A+PTR	ens-link.lge.ens-cachan.fr
138.231.168.20	A+PTR	mail.lge.ens-cachan.fr
138.231.168.26	A+PTR	proxy.lge.ens-cachan.fr
138.231.176.1	A	pioneer.ens-cachan.fr
138.231.176.3	A	cerbere.ens-cachan.fr
138.231.176.4	A+PTR	ariane.ens-cachan.fr
138.231.176.8	A	apollo.ens-cachan.fr
138.231.176.240	A+PTR	pppa0.ens-cachan.fr
138.231.176.241	A+PTR	pppa1.ens-cachan.fr
138.231.176.242	A	pppa2.ens-cachan.fr
138.231.176.243	A	pppa3.ens-cachan.fr
138.231.221.246	A	client-246.openvpn-stef.ens-cachan.fr