Robtex

Up: 91.221.196.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 91.221.196.0/24
Down right: 91.221.197.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.221.196.4	PTR	ssl.gratisdns.dk
91.221.196.4	A	gratisdns.dk
91.221.196.4	A	oldsystem.gratisdns.dk
91.221.196.7	A+PTR	web1.netplads.dk
91.221.196.7	A	wiki.gratisdns.dk
91.221.196.7	A	web.gratisdns.dk
91.221.196.8	PTR	www.netplads.dk
91.221.196.8	A	ns.lfdata.dk
91.221.196.8	A	dns1.larshansen.dk
91.221.196.9	A+PTR	sandra.gratisdns.dk
91.221.196.10	PTR	nina.gratisdns.dk
91.221.196.10	A	harshit.dydns.dk
91.221.196.10	A	ndns.dk
91.221.196.11	PTR	axfr.gratisdns.dk
91.221.196.12	A+PTR	axfr-ext.gratisdns.dk
91.221.196.12	A	zonecheck.info
91.221.196.13	A+PTR	oldsystem.gratisdns.dk
91.221.196.13	A	ordinaryworld.dk
91.221.196.14	A	livesystem.gratisdns.com
91.221.196.178	PTR	challenger.contix.dk
91.221.196.178	A	peter-hansen.org
91.221.196.178	A	klatrebums.dk
91.221.196.180	A+PTR	animanga.dk
91.221.196.182	PTR	unifi.larsendata.dk
91.221.196.182	A	soren-hansen.dk
91.221.196.182	A	soeren-hansen.dk
91.221.196.185	A+PTR	wrong.frequency.dk
91.221.196.185	A	xn--p8ja8e.xn--q9jyb4c
91.221.196.190	PTR	apollo13-ilo.contix.dk
91.221.196.190	A	mailforwarder.net
91.221.196.190	A	receivedemail.com
91.221.196.198	PTR	cph1.spamfilter.cc
91.221.196.198	A	mx1.spamfilter.cc
91.221.196.198	A	spamfilter.cc
91.221.196.202	PTR	web2b.netplads.dk
91.221.196.202	A	karre.info
91.221.196.202	A	simonvt.net
91.221.196.203	PTR	cpanel1cl7.netplads.dk
91.221.196.204	PTR	cpanel1.larsendata.dk
91.221.196.204	A	digitaltcertifikat.dk
91.221.196.204	A	www.digitaltcertifikat.dk
91.221.196.205	PTR	www.samso.dk
91.221.196.207	PTR	cipherli.st
91.221.196.207	A	mail.infovation.dk
91.221.196.207	A	mail.ferienservice.eu
91.221.196.208	A	danafryd.dk
91.221.196.208	A	ajour-gd.dk
91.221.196.208	A	www.ferieservice.dk
91.221.196.211	A+PTR	ns1.larsendata.com
91.221.196.212	PTR	freesbee.dk
91.221.196.212	A	mail.skod.dk
91.221.196.213	PTR	barcrawl.dk
91.221.196.214	A	mail.klovnsulent.dk
91.221.196.214	A	mail.m3.dk
91.221.196.214	A	www.signout.dk
91.221.196.216	A+PTR	kenny.grepmasters.net
91.221.196.216	A	*.wange.dk
91.221.196.216	A	barcrawl.dk
91.221.196.218	PTR	mail.samso.net
91.221.196.219	A+PTR	mail04.mxhotel.dk
91.221.196.220	A+PTR	rt.gratisdns.dk
91.221.196.222	PTR	whitehat.larsendata.dk
91.221.196.222	A	ea.users.whitehat.dk
91.221.196.222	A	xstrem.users.whitehat.dk
91.221.196.223	PTR	web3.netplads.dk
91.221.196.224	A	yw.dk
91.221.196.224	A	safari.fo
91.221.196.224	A	jpsa.dk
91.221.196.226	PTR	web3.netplads.dk
91.221.196.226	A	clinidas.com
91.221.196.226	A	polytimia.com
91.221.196.227	PTR	mail03.mxhotel.dk
91.221.196.228	PTR	b.nic.gl
91.221.196.232	PTR	dnscheck.gratisdns.dk
91.221.196.232	A	lifeextension.dk
91.221.196.232	A	elmo-andersen.dk
91.221.196.236	PTR	mail01.mxhotel.dk
91.221.196.236	A	mail.stjernedrys.dk
91.221.196.236	A	mail.skanor-falsterbo.com
91.221.196.238	A+PTR	ote.gratisdns.com
91.221.196.239	PTR	mail.samso.net
91.221.196.239	A	*.stenvang.dk
91.221.196.239	A	byen.nu
91.221.196.240	PTR	web4.netplads.dk
91.221.196.240	A	isabellaogsebastian.dk
91.221.196.240	A	www.bendt.com
91.221.196.245	A+PTR	forwardsrs.net
91.221.196.245	A	lemstad.dk
91.221.196.247	PTR	web5.netplads.dk
91.221.196.247	A	dkcdata.com
91.221.196.247	A	tmrobots.com
91.221.196.248	A+PTR	mailrelay1.larsendata.dk
91.221.196.250	A+PTR	parismailgw.gratisdns.dk
91.221.196.250	A	mxbackup.gratisdns.dk
91.221.196.250	A	mailforward.gratisdns.dk
91.221.196.251	PTR	dspam.mail01.mxhotel.dk
91.221.196.251	A	athletes.fi
91.221.196.253	PTR	maria.gratisdns.dk
91.221.196.253	A	ordinaryworld.dk
91.221.196.253	A	digitaltcertifikat.dk