Robtex

Up: 81.13.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 81.13.128.0/18
Down right: 81.13.192.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.13.130.42	A	home.crl.ch
81.13.130.42	A	crl.fromhome.ch
81.13.136.13	A	scumpictures.com
81.13.136.13	A	mail.scumpictures.com
81.13.136.224	A	www.jeuxmath.ch
81.13.136.224	A	grand-paradis.ch
81.13.136.224	A	www.nax-vs.ch
81.13.138.34	A	rohs.nohost.me
81.13.139.92	A	cs13etoiles.ch
81.13.139.92	A	pdlm.ch
81.13.139.92	A	rangs.ch
81.13.140.200	A	social.bitcast.info
81.13.140.200	A	bitcast.info
81.13.141.84	A	ns2.tchoum.ch
81.13.145.127	A	reyy.dyndns.org
81.13.148.93	A	mail.cavechezbrac.ch
81.13.152.214	A	leflat.com
81.13.155.145	A	lasage.net
81.13.157.24	A	eden4crans.com
81.13.157.35	A	lasage.net
81.13.158.186	A	mail.mayor.ch
81.13.159.160	A	zufp.ch
81.13.159.189	A	fri.bitcast.info
81.13.164.9	A	mail.berthet.ch
81.13.166.199	A	cnsr.dynu.net
81.13.169.81	A	com-business.de
81.13.170.87	A	fumeaux.com
81.13.173.89	A	cloudboxtroia.ddns.net
81.13.176.250	A	synmf.com
81.13.177.241	A	abra.adorsaz.ch
81.13.177.241	A	ns1.adorsaz.ch
81.13.179.130	A	smtp.agnotix.org
81.13.179.130	A	parricus.com
81.13.182.214	A	arean.net
81.13.184.106	A	vercorin-andrin.wgnet.ch
81.13.188.104	A	icare.ch
81.13.190.100	A	mtfilm.ch
81.13.194.119	A	mail.bellwi.ch
81.13.194.119	A	bellwi.ch
81.13.194.144	A	mrjack.ch
81.13.222.120	A	davidl.synology.me
81.13.222.217	A	mr2home.net
81.13.225.30	A	sbucher.com
81.13.227.190	A	www.pasahome.org
81.13.227.190	A	pasahome.org
81.13.238.74	A	diamantini-nas.com
81.13.240.38	A	darioly.com
81.13.242.176	A	moix.info
81.13.248.10	A	dns.dorsaz.net
81.13.248.10	A	srv1.novanetwork.ch
81.13.248.10	A	mx.novanetwork.ch
81.13.248.243	A	srv1.novanetwork.ch
81.13.248.243	A	mx.novanetwork.ch
81.13.248.243	A	novanetwork.ch
81.13.248.251	A	la-cigale.org
81.13.253.95	A	mail.idealis.fi
81.13.255.78	A	dorsaz.net