Robtex

Up: 217.199.172.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 217.199.172.0/25
Down right: 217.199.172.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.199.172.2	PTR	ip-1.conceptwebsites.com
217.199.172.6	PTR	fw-pix.fos-nameserver.com
217.199.172.8	A	mail.umusic.co.uk
217.199.172.9	PTR	ns4.cheapest-nameserver.com
217.199.172.12	PTR	ns.epix.to
217.199.172.16	A	ns.irish-webhosting.com
217.199.172.18	PTR	ip-2.valeit.com
217.199.172.21	A	mail.landrovers-reunited.com
217.199.172.21	A	landrovers-reunited.com
217.199.172.24	PTR	ns.volaro.co.uk
217.199.172.25	PTR	ns.soci.org.uk
217.199.172.26	PTR	ns2.soci.org.uk
217.199.172.29	PTR	fw.ns.soci.org
217.199.172.37	PTR	fw.fos-nameserver.com
217.199.172.41	PTR	ns2.mytrakm8.com
217.199.172.44	PTR	ns2.netformatt.co.uk
217.199.172.45	PTR	ns.weblator.com
217.199.172.47	PTR	ns.collectorsprints.co.uk
217.199.172.51	PTR	ns.dtdpoker.com
217.199.172.58	PTR	ip.activ-server.com
217.199.172.64	PTR	web2.officerecruit.com
217.199.172.71	PTR	ip.ns.deepfusion.co.uk
217.199.172.72	PTR	shash3.colo.hosteurope.com
217.199.172.73	PTR	shash4.colo.hosteurope.com
217.199.172.76	PTR	ns.cinesite.com
217.199.172.79	A+PTR	ns.victoriacrossheroes.com
217.199.172.79	A	mail.ns.victoriacrossheroes.com
217.199.172.80	PTR	ns.skygrace.com
217.199.172.81	PTR	ns2.skygrace.com
217.199.172.83	PTR	ip-1.drummondlinux4.co.uk
217.199.172.84	PTR	ns.brandblue.net
217.199.172.84	A	servery.blanchworth.net
217.199.172.88	A	help15.creativevirtual.com
217.199.172.90	PTR	ns.soci.org.uk
217.199.172.94	PTR	latis.cheapest-nameserver.com
217.199.172.95	PTR	ip-2.conceptwebsites.com
217.199.172.97	PTR	ns.stylesandwood.co.uk
217.199.172.99	PTR	temp.sven.mnet.test
217.199.172.100	PTR	ns.hirecars.co.uk
217.199.172.100	A	mail.spar-mietwagen.de
217.199.172.103	PTR	ns.valeit.com
217.199.172.105	PTR	exceed.quickbooks.co.uk
217.199.172.106	PTR	www.quickbooks.co.uk
217.199.172.109	PTR	lk4.aprslk.net
217.199.172.111	PTR	ip-1.valeit.com
217.199.172.115	PTR	ns4.cybhr.co.uk
217.199.172.118	PTR	lk9.aprslk.net
217.199.172.122	PTR	ns.cybhr.co.uk
217.199.172.125	A	safam.fr
217.199.172.126	PTR	ns.accobrandseurope.com
217.199.172.126	A	rexel.us
217.199.172.135	PTR	ip-3.conceptwebsites.com
217.199.172.136	PTR	ns.asp-networks.co.uk
217.199.172.138	PTR	ns.glisferox.co.uk
217.199.172.138	A	redmondwalsh.com
217.199.172.138	A	mail.redmondwalsh.com
217.199.172.139	PTR	fw-ns.multichanneltv.com
217.199.172.140	PTR	ns.webjam.com
217.199.172.147	PTR	fw.activ-server.com
217.199.172.148	PTR	ns.happeneurs.net
217.199.172.150	PTR	ip.ns.hirecars.co.uk
217.199.172.160	PTR	oak.tincan.co.uk
217.199.172.160	A	obfuscation.net
217.199.172.162	PTR	ns.veryniceshop.com
217.199.172.174	A	mail.broadleaf.info
217.199.172.178	PTR	db2.sclub.com
217.199.172.179	PTR	fw.sclub.com
217.199.172.181	PTR	ns.world-force.co.uk
217.199.172.181	A	mail.wealth-site.com
217.199.172.181	A	mailserver.ablepropertytrust.com
217.199.172.184	PTR	ns.sutherlands-ed.com
217.199.172.186	PTR	ns3.iomol.net
217.199.172.190	PTR	ns.textictalk.com
217.199.172.192	PTR	ns.salonrusse.com
217.199.172.194	PTR	ns.creativeinternetmarketing.co.uk
217.199.172.198	PTR	ns3.online-affiliates.co.uk
217.199.172.201	PTR	ns3.umusic.co.uk
217.199.172.203	PTR	ns.agl-dedicated-servers.co.uk
217.199.172.207	PTR	ns.purpleear.net
217.199.172.212	A	oilseed-rape.com
217.199.172.213	A	justsimcards.com
217.199.172.220	PTR	comb0.portcomber.net
217.199.172.221	PTR	comb1.portcomber.net
217.199.172.234	PTR	ns2.webbler.org
217.199.172.236	PTR	ns.maindns.co.uk
217.199.172.238	PTR	ns.allsearchengines.co.uk
217.199.172.254	PTR	v172.ar01.pr1.dco.pipex.net