Robtex

Up: 138.230.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 138.231.0.0/17
Down right: 138.231.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
138.231.0.0	PTR	ens-cachan.fr
138.231.2.2	PTR	gateway.srh.ens-cachan.fr
138.231.6.2	PTR	tseadmwin1.cliadm.ens-cachan.fr
138.231.6.55	A	guitare.cliadm.ens-cachan.fr
138.231.15.2	PTR	gateway.gadm.ens-cachan.fr
138.231.32.2	A+PTR	gwvisitors.dptmaths.ens-cachan.fr
138.231.35.2	A+PTR	s9a-p2.peea.ens-cachan.fr
138.231.38.1	A+PTR	gateway.pdgc.ens-cachan.fr
138.231.38.3	A+PTR	vauban-pdgc.pdgc.ens-cachan.fr
138.231.38.4	A	image38.pdgc.ens-cachan.fr
138.231.38.11	A	nouvel.pdgc.ens-cachan.fr
138.231.46.0	PTR	clietu.ens-cachan.fr
138.231.46.2	PTR	nemo.clietu.ens-cachan.fr
138.231.46.2	A	nemo.rip.ens-cachan.fr
138.231.46.13	A	uderzo-13.clietu.ens-cachan.fr
138.231.46.162	A	acces1.rip.ens-cachan.fr
138.231.46.162	A	tselin.clietu.ens-cachan.fr
138.231.64.2	A+PTR	mayo.cmla.ens-cachan.fr
138.231.64.40	A	demo.ipol.im
138.231.64.40	A	green.hw.ipol.im
138.231.64.41	A+PTR	crouton.cmla.ens-cachan.fr
138.231.64.49	PTR	courge.cmla.ens-cachan.fr
138.231.65.140	A+PTR	adhara.lpqm.ens-cachan.fr
138.231.69.8	A+PTR	owncloud.lurpa.ens-cachan.fr
138.231.70.0	PTR	satie.ens-cachan.fr
138.231.75.0	PTR	idhe.ens-cachan.fr
138.231.77.4	A+PTR	chambertin.lmt.ens-cachan.fr
138.231.80.0	PTR	pppcmla.ens-cachan.fr
138.231.80.20	A	sula.pppcmla.ens-cachan.fr
138.231.80.203	A	loup.pppcmla.ens-cachan.fr
138.231.80.231	A	tamanoir.pppcmla.ens-cachan.fr
138.231.81.6	A	ns.lsv.fr
138.231.81.6	A	ns.lsv.ens-cachan.fr
138.231.81.11	A	lsv.ens-cachan.fr
138.231.81.11	A	webserver.lsv.ens-cachan.fr
138.231.110.1	A	gateway.cri.ens-cachan.fr
138.231.110.3	A	accueil.cri.ens-cachan.fr
138.231.110.4	A	accueil2.cri.ens-cachan.fr
138.231.110.5	A	atelier.cri.ens-cachan.fr
138.231.111.6	A+PTR	mailanie.ens-cachan.fr
138.231.111.12	A	archive2.ens-cachan.fr
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
138.231.137.21	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	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	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	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
138.231.221.246	A	client-246.openvpn-stef.ens-cachan.fr