Robtex

Up: 81.16.148.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 81.16.150.0/24
Down right: 81.16.151.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.16.150.4	A	dns1.nextlayer.at
81.16.150.7	A	vtest2.nextlayer.at
81.16.150.8	A	vtest1.vm.nextlayer.at
81.16.150.8	A	vtest1.nextlayer.at
81.16.150.9	A+PTR	radius1.nextlayer.at
81.16.150.13	PTR	sip.nextlayer.at
81.16.150.15	A+PTR	vpn.nextlayer.at
81.16.150.17	A+PTR	time.nextlayer.at
81.16.150.18	PTR	hosting.nextlayer.at
81.16.150.18	A	cachee.at
81.16.150.19	PTR	platon.srv.nextlayer.at
81.16.150.20	A	db.nextlayer.at
81.16.150.21	PTR	vpn.nextlayer.at
81.16.150.23	A+PTR	svn.nextlayer.at
81.16.150.24	A	syslog.nextlayer.at
81.16.150.26	A+PTR	smtp1.nextlayer.at
81.16.150.27	A+PTR	mx.nextlayer.at
81.16.150.27	A	fallback.nextlayer.at
81.16.150.28	A+PTR	smtp.nextlayer.at
81.16.150.28	A	smtp.nextlayer.net
81.16.150.29	A	mbox.nextlayer.at
81.16.150.30	A+PTR	ns.nextlayer.at
81.16.150.30	A	ns1.zwerg.at
81.16.150.30	A	ns1.innosoft.at
81.16.150.40	A+PTR	ns-test.nextlayer.at
81.16.150.41	A+PTR	mailproxy.nextlayer.at
81.16.150.100	A	nlm-server.nextlayer.at
81.16.150.100	A	monitoring.nextlayer.at
81.16.150.102	A+PTR	monhost2.srv.nextlayer.at
81.16.150.130	A+PTR	speedtest.nextlayer.at
81.16.150.131	PTR	mirror.nextlayer.at
81.16.150.146	A+PTR	rdns1.srv.nextlayer.at
81.16.150.154	A+PTR	rdns2.srv.nextlayer.at
81.16.150.234	PTR	immofinanz4.vm.nextlayer.at
81.16.150.234	A	businessparkvienna.com
81.16.150.234	A	vivo-stalowa.com
81.16.150.235	PTR	immofinanz5.vm.nextlayer.at
81.16.150.235	A	immoeast.at
81.16.150.244	A+PTR	dh1.vm.nextlayer.at
81.16.150.244	A	hitsec.at
81.16.150.245	PTR	immofinanz1.vm.nextlayer.at
81.16.150.245	A	immoeast.at
81.16.150.245	A	immofinanz.ro
81.16.150.246	PTR	immofinanz2.vm.nextlayer.at
81.16.150.246	A	immomaschine.at
81.16.150.246	A	twin-life.at
81.16.150.248	PTR	incentro2.vm.nextlayer.at
81.16.150.248	A	buwog-bergedorf.com
81.16.150.248	A	speicherballett.com
81.16.150.249	PTR	mail.madworld.at
81.16.150.250	PTR	innosoft-web1.vm.nextlayer.at
81.16.150.250	A	mx.zwerg.at
81.16.150.250	A	mail.ofner.eu
81.16.150.251	A+PTR	mosthamster.nic.priv.at
81.16.150.251	A	whois.nic.priv.at
81.16.150.252	PTR	pvs01.powo.priv.at
81.16.150.252	A	chatwindow.org
81.16.150.252	A	chatwindow.ch
81.16.150.253	PTR	dh2.vm.nextlayer.at
81.16.151.7	A+PTR	xenhost3.srv.nextlayer.at
81.16.151.8	A+PTR	demonlm.vm.nextlayer.at
81.16.151.8	A	demonlm.nextlayer.at
81.16.151.9	A	radius2.nextlayer.at
81.16.151.10	PTR	bacula.vm.nextlayer.at
81.16.151.10	A	bacula.nextlayer.at
81.16.151.16	PTR	video1.vm.nextlayer.at
81.16.151.25	PTR	www.nextlayer.at
81.16.151.25	A	nextlayer.net
81.16.151.25	A	www.nextlayer.net
81.16.151.30	A+PTR	ns2.nextlayer.at
81.16.151.30	A	ns2.innosoft.at
81.16.151.30	A	ns2.zwerg.at
81.16.151.40	A+PTR	ns-test2.nextlayer.at
81.16.151.138	A+PTR	d01.rdh.vie.nextlayer.at
81.16.151.242	A+PTR	exfe01.cpce.net
81.16.151.242	A	owa.cpce.net