Robtex

Up: 87.103.168.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 87.103.172.0/23
Down right: 87.103.174.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
87.103.172.0	PTR	87-103-172-0.pppoe.irtel.ru
87.103.172.27	PTR	kir.vs.gkovd.ru
87.103.172.41	A+PTR	ns.slata.ru
87.103.172.133	PTR	87-103-172-133.pppoe.irtel.ru
87.103.172.148	A+PTR	mail.itsatory.ru
87.103.172.178	PTR	mail.iro38.ru
87.103.172.198	PTR	87-103-172-198.pppoe.irtel.ru
87.103.172.206	PTR	87-103-172-206.pppoe.irtel.ru
87.103.172.224	PTR	mail.atsit.ru
87.103.173.1	PTR	87-103-173-1.pppoe.irtel.ru
87.103.173.38	A	mail.riphei.ru
87.103.173.53	PTR	87-103-173-53.pppoe.irtel.ru
87.103.173.53	A	mail.vostokltd.ru
87.103.173.95	PTR	87-103-173-95.pppoe.irtel.ru
87.103.173.95	A	mail.irksobes.ru
87.103.173.98	PTR	87-103-173-98.pppoe.irtel.ru
87.103.173.103	PTR	87-103-173-103.pppoe.irtel.ru
87.103.173.124	PTR	87-103-173-124.pppoe.irtel.ru
87.103.173.226	PTR	87-103-173-226.pppoe.irtel.ru
87.103.173.226	A	ingserv.insistems.ru
87.103.174.1	PTR	87-103-174-1.pppoe.irtel.ru
87.103.174.25	A+PTR	mail2.iztm.ru
87.103.174.25	A	mail2.iztm.com
87.103.174.49	PTR	87-103-174-49.pppoe.irtel.ru
87.103.174.51	A+PTR	ns.irmeteo.ru
87.103.174.51	A	irmeteo.ru
87.103.174.51	A	www.irmeteo.ru
87.103.174.64	A	kolhozimsvoidns.ru
87.103.174.64	A	www.sms-besplatno.ru
87.103.174.64	A	www.kolhozimsvoidns.ru
87.103.174.78	A+PTR	mail.emi.irk.ru
87.103.174.78	A	mx2.emi.irk.ru
87.103.174.78	A	www.10-irk.ru
87.103.174.109	PTR	87-103-174-109.pppoe.irtel.ru
87.103.174.120	PTR	mail.baikaloffice.ru
87.103.174.133	PTR	87-103-174-133.pppoe.irtel.ru
87.103.174.138	PTR	mail.aspb-irk.ru
87.103.174.138	A	aspb-irk.ru
87.103.174.148	PTR	mail.stn-bc.ru
87.103.174.148	A	kan-pri.ru
87.103.174.148	A	stn-bc.ru
87.103.174.158	A	lib-cher-rayon.ru
87.103.174.158	A	www.lib-cher-rayon.ru
87.103.174.165	A	mail.dodoctor.ru
87.103.174.165	A	mail1.dodoctor.ru
87.103.174.169	PTR	mail.249644.ru
87.103.174.182	PTR	87-103-174-182.pppoe.irtel.ru
87.103.174.187	A	bytebratsk.ru
87.103.174.187	A	gw.bytebratsk.ru
87.103.174.187	A	www.bytebratsk.ru
87.103.174.205	PTR	87-103-174-205.pppoe.irtel.ru
87.103.174.207	A+PTR	mail.ukpost.ru
87.103.174.207	A	ukpost.ru
87.103.174.216	PTR	87-103-174-216.pppoe.irtel.ru
87.103.174.247	A+PTR	mail.irk-cpp.ru
87.103.174.247	A	mail.irkcpp.ru
87.103.175.12	PTR	87-103-175-12.pppoe.irtel.ru
87.103.175.14	PTR	87-103-175-14.pppoe.irtel.ru
87.103.175.14	A	mail.nt-irk.ru
87.103.175.14	A	nt-irk.ru
87.103.175.26	A+PTR	mail.servico.ru
87.103.175.26	A	www.servico.ru
87.103.175.26	A	servico.ru
87.103.175.59	PTR	mail.irkraion.ru
87.103.175.137	PTR	mail.agatauto.ru
87.103.175.177	PTR	sloboda.ru
87.103.175.184	A+PTR	home.vic-k.com
87.103.175.184	A	mail.vic-k.com