Robtex

Up: 81.15.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 81.15.0.0/18
Down right: 81.15.64.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.15.1.5	A+PTR	dsl-5.linanet.is
81.15.1.6	PTR	cust-dsl-6.linanet.is
81.15.1.17	A	dsl-17.linanet.is
81.15.1.18	A	dsl-18.linanet.is
81.15.1.19	A	dsl-19.linanet.is
81.15.1.128	A+PTR	dsl-128.linanet.is
81.15.1.129	A	dsl-129.linanet.is
81.15.1.130	A	dsl-130.linanet.is
81.15.1.131	A	dsl-131.linanet.is
81.15.10.145	A	skilagreinar.verktaekni.is
81.15.10.147	A	the-matrix.midverk.is
81.15.10.147	A	nonni.midverk.is
81.15.10.150	A	postur.midverk.is
81.15.11.67	A	do.you.know.who.the.bofh.is
81.15.15.1	PTR	notendur.stjr.is
81.15.15.2	A+PTR	vpn.stjr.is
81.15.15.10	A+PTR	eldur.stjr.is
81.15.15.10	A	obyggd.stjr.is
81.15.15.11	A	vefur.stjr.is
81.15.18.1	A	mx.astra.is
81.15.18.2	A+PTR	astra2.astra.is
81.15.18.2	A	mail.efsa.is
81.15.18.2	A	mail.leigufelagid.is
81.15.18.60	A	mail.efsa.is
81.15.18.73	A	6.is
81.15.18.172	A	hjalp.astra.is
81.15.18.178	A+PTR	mxa.astra.is
81.15.18.234	A	6.is
81.15.28.172	PTR	postur.kfs.is
81.15.28.198	PTR	ns1.magnus.is
81.15.30.2	PTR	81-15-30-2.du.xdsl.is
81.15.30.2	A	gw2.althingi.is
81.15.30.13	A	ullur.althingi.is
81.15.30.220	A	hnoss.althingi.is
81.15.30.220	A	postur.althingi.is
81.15.31.11	PTR	81-15-31-11.du.xdsl.is
81.15.31.12	PTR	81-15-31-12.du.xdsl.is
81.15.31.13	A	fjalar.althingi.is
81.15.31.15	A	smtp-test.althingi.is
81.15.31.16	A	saga.althingi.is
81.15.31.17	A	frigg.althingi.is
81.15.33.38	PTR	net.ice.is
81.15.33.99	PTR	emc.is
81.15.36.25	PTR	mx0.eigna.is
81.15.36.25	A	dreamfish.is
81.15.36.25	A	birtaimages.com
81.15.36.37	PTR	www.asgeir.org
81.15.38.41	A	askja.viator.is
81.15.38.42	PTR	katla-dmi.is
81.15.38.42	A	in-island.de
81.15.38.42	A	sjonlinan.is
81.15.38.161	A	puccini.anok.is
81.15.38.164	A	donizetti.anok.is
81.15.38.166	A	kaktus.anok.is
81.15.38.166	A	www.taeknivorur.is
81.15.40.9	A	sensanetworking.com
81.15.42.1	A+PTR	ns1.thekking.is
81.15.42.1	A	dffu.de
81.15.42.2	A+PTR	notes2.thekking.is
81.15.42.3	A+PTR	ns2.thekking.is
81.15.42.146	A	term.redcross.is
81.15.42.155	A	www.lb.is
81.15.42.155	A	lb.is
81.15.42.155	A	landskerfi.is
81.15.47.184	A	p2p.is
81.15.56.68	A	adsl-h-56-68.heimsnet.is
81.15.56.74	A	adsl-h-56-74.heimsnet.is
81.15.56.93	A	adsl-h-56-93.heimsnet.is
81.15.56.145	A	adsl-h-56-145.heimsnet.is
81.15.56.149	A	adsl-h-56-149.heimsnet.is
81.15.56.233	A	adsl-h-56-233.heimsnet.is
81.15.56.242	A	adsl-h-56-242.heimsnet.is
81.15.57.1	A+PTR	adsl-h-57-1.heimsnet.is
81.15.57.2	A+PTR	adsl-h-57-2.heimsnet.is
81.15.57.4	A	adsl-h-57-4.heimsnet.is
81.15.57.7	A	adsl-h-57-7.heimsnet.is
81.15.57.128	A+PTR	adsl-h-57-128.heimsnet.is
81.15.57.136	A	adsl-h-57-136.heimsnet.is
81.15.57.140	A	adsl-h-57-140.heimsnet.is
81.15.57.143	A	adsl-h-57-143.heimsnet.is
81.15.58.133	A	adsl-h-58-133.heimsnet.is
81.15.58.135	A	adsl-h-58-135.heimsnet.is
81.15.58.148	A	adsl-h-58-148.heimsnet.is
81.15.58.153	A	adsl-h-58-153.heimsnet.is
81.15.59.48	A	adsl-h-59-48.heimsnet.is
81.15.59.54	A	adsl-h-59-54.heimsnet.is
81.15.59.109	A	adsl-h-59-109.heimsnet.is
81.15.59.113	A	adsl-h-59-113.heimsnet.is
81.15.59.199	A	adsl-h-59-199.heimsnet.is
81.15.59.220	A	adsl-h-59-220.heimsnet.is
81.15.61.194	A	81-15-61-194.du.xdsl.is
81.15.61.205	A	81-15-61-205.du.xdsl.is
81.15.61.239	A	postur.runir.is
81.15.61.239	A	mail.runir.is
81.15.80.1	A	man-1.linanet.is
81.15.80.16	A	bc-c-1.linanet.is
81.15.80.17	A	bc-s-1.linanet.is
81.15.80.18	A	bc-i-1.linanet.is
81.15.80.129	A+PTR	web-1.linanet.is
81.15.80.161	A+PTR	web-161.linanet.is
81.15.80.190	A+PTR	web-gw.linanet.is
81.15.80.193	A+PTR	cust-gw-193.linanet.is
81.15.82.65	PTR	mail.aflverk.is
81.15.83.58	A	81-15-83-58.du.xdsl.is
81.15.83.104	A	joi.nett.is
81.15.83.113	A	81-15-83-113.du.xdsl.is
81.15.85.37	PTR	www.ils.is
81.15.85.37	A	ws.ils.is
81.15.85.40	A+PTR	perseus.ils.is
81.15.85.41	A+PTR	theseus.ils.is
81.15.85.42	A	ibudalan.is
81.15.88.94	A	81-15-88-94.du.xdsl.is
81.15.88.143	A	81-15-88-143.du.xdsl.is
81.15.98.82	A+PTR	postur.nathan.is
81.15.98.162	A	postur.lifland.is
81.15.98.229	A	vpn.gamar.is
81.15.99.1	A+PTR	mpls-bb-s24.linanet.is
81.15.99.129	PTR	mpls-bb-if-129.linanet.is
81.15.99.134	A	london-farice1.linanet.is
81.15.104.107	A+PTR	81-15-104-107.du.xdsl.is
81.15.105.143	A+PTR	81-15-105-143.du.xdsl.is
81.15.105.143	A	gunnarh.net
81.15.106.243	A+PTR	81-15-106-243.du.xdsl.is
81.15.106.243	A	peturt.com
81.15.112.1	PTR	ns0.nethonnun.is
81.15.112.30	A	am5-servers-sw00.nhnet.is
81.15.112.60	A	simstod.nh.is
81.15.112.65	A	web01.nh.is
81.15.112.66	A	huginn.nh.is
81.15.112.130	A	law-gw-e0.nhnet.is
81.15.112.131	A	neisti-gw-e0.nhnet.is
81.15.112.132	A	hataekni-gw-e0.nhnet.is
81.15.112.135	A	nh-gw.nhnet.is
81.15.113.8	A	adsl-1-8.du.nh.is
81.15.113.31	A	adsl-1-31.du.nh.is
81.15.114.55	A	miracle-support.org
81.15.114.55	A	miracle-support.com
81.15.114.164	A	net-114-164.nhnet.is
81.15.114.167	A	net-114-164.nhnet.is
81.15.115.147	A	bluesky.nh.is
81.15.115.157	A	valholl.nh.is
81.15.116.1	A+PTR	dsl-2-1.du.nh.is
81.15.116.4	A	dsl-2-4.du.nh.is
81.15.116.5	A	dsl-2-5.du.nh.is
81.15.116.8	A	dsl-2-8.du.nh.is
81.15.116.128	A	dsl-2-128.du.nh.is
81.15.116.130	A	dsl-2-130.du.nh.is
81.15.116.132	A	dsl-2-132.du.nh.is
81.15.116.133	A	dsl-2-133.du.nh.is
81.15.120.0	PTR	net-120-0.nhnet.is
81.15.120.2	PTR	kassi1.sandholt.is
81.15.120.3	PTR	kassi2.sandholt.is
81.15.120.16	A	net-120-16.nhnet.is
81.15.120.17	A	radiomidun-gw-e0.nhnet.is
81.15.120.23	A	net-120-16-broadcast.nhnet.is
81.15.120.46	A	nh-gw-e0.3x.is
81.15.120.133	A	am5-thradlaus-133.du.nh.is
81.15.120.141	A	am5-thradlaus-141.du.nh.is
81.15.120.142	A	am5-thradlaus-gw.nhnet.is
81.15.120.149	A	law-gestur-149.du.nh.is
81.15.122.193	PTR	ns0.vefmidlun.is
81.15.122.197	PTR	ns1.vefmidlun.is