Robtex

Up: 81.171.108.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 81.171.110.0/24
Down right: 81.171.111.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.171.110.2	PTR	iad-a01.ipvanish.com
81.171.110.2	A+PTR	81-171-110-2.ipvanish.com
81.171.110.3	A+PTR	81-171-110-3.ipvanish.com
81.171.110.3	A+PTR	iad-a02.ipvanish.com
81.171.110.5	PTR	unknown.puregig.net
81.171.110.6	PTR	81-171-110-6.ipvanish.com
81.171.110.7	PTR	unknown.puregig.net
81.171.110.8	A+PTR	81-171-110-8.ipvanish.com
81.171.110.8	PTR	iad-a22.ipvanish.com
81.171.110.9	PTR	unknown.puregig.net
81.171.110.10	PTR	unknown.puregig.net
81.171.110.11	PTR	unknown.puregig.net
81.171.110.13	PTR	unknown.puregig.net
81.171.110.14	PTR	unknown.puregig.net
81.171.110.15	PTR	unknown.puregig.net
81.171.110.16	A+PTR	81-171-110-16.ipvanish.com
81.171.110.16	A+PTR	iad-a26.ipvanish.com
81.171.110.17	PTR	unknown.puregig.net
81.171.110.19	PTR	unknown.puregig.net
81.171.110.20	PTR	unknown.puregig.net
81.171.110.21	PTR	unknown.puregig.net
81.171.110.22	PTR	unknown.puregig.net
81.171.110.23	PTR	unknown.puregig.net
81.171.110.24	PTR	unknown.puregig.net
81.171.110.25	PTR	unknown.puregig.net
81.171.110.27	PTR	unknown.puregig.net
81.171.110.28	PTR	unknown.puregig.net
81.171.110.29	PTR	unknown.puregig.net
81.171.110.30	PTR	unknown.puregig.net
81.171.110.31	PTR	unknown.puregig.net
81.171.110.32	PTR	unknown.puregig.net
81.171.110.33	A+PTR	iad-a34.ipvanish.com
81.171.110.33	A+PTR	81-171-110-33.ipvanish.com
81.171.110.34	PTR	unknown.puregig.net
81.171.110.35	PTR	unknown.puregig.net
81.171.110.37	PTR	unknown.puregig.net
81.171.110.38	PTR	unknown.puregig.net
81.171.110.40	PTR	unknown.puregig.net
81.171.110.41	PTR	unknown.puregig.net
81.171.110.42	PTR	unknown.puregig.net
81.171.110.43	PTR	unknown.puregig.net
81.171.110.44	PTR	unknown.puregig.net
81.171.110.45	PTR	unknown.puregig.net
81.171.110.48	PTR	81-171-110-48.ipvanish.com
81.171.110.49	PTR	81-171-110-49.ipvanish.com
81.171.110.52	PTR	unknown.puregig.net
81.171.110.55	PTR	81-171-110-55.ipvanish.com
81.171.110.61	PTR	unknown.puregig.net
81.171.110.61	A	playbrasil.net
81.171.110.67	PTR	unknown.puregig.net
81.171.110.69	PTR	81-171-110-69.ipvanish.com
81.171.110.83	PTR	81-171-110-83.ipvanish.com
81.171.110.84	PTR	81-171-110-84.ipvanish.com
81.171.110.86	PTR	unknown.puregig.net
81.171.110.90	PTR	81-171-110-90.ipvanish.com
81.171.110.91	PTR	81-171-110-91.ipvanish.com
81.171.110.93	PTR	81-171-110-93.ipvanish.com
81.171.110.94	PTR	unknown.puregig.net
81.171.110.97	PTR	unknown.puregig.net
81.171.110.100	PTR	81-171-110-100.ipvanish.com
81.171.110.109	PTR	81-171-110-109.ipvanish.com
81.171.110.123	PTR	81-171-110-123.ipvanish.com
81.171.110.124	PTR	81-171-110-124.ipvanish.com
81.171.110.131	PTR	81-171-110-131.ipvanish.com
81.171.110.133	PTR	unknown.puregig.net
81.171.110.140	PTR	unknown.puregig.net
81.171.110.143	PTR	81-171-110-143.ipvanish.com
81.171.110.144	PTR	81-171-110-144.ipvanish.com
81.171.110.146	PTR	unknown.puregig.net
81.171.110.160	PTR	81-171-110-160.ipvanish.com
81.171.110.165	PTR	unknown.puregig.net
81.171.110.166	PTR	unknown.puregig.net
81.171.110.167	PTR	81-171-110-167.ipvanish.com
81.171.110.168	PTR	unknown.puregig.net
81.171.110.171	PTR	unknown.puregig.net
81.171.110.172	PTR	unknown.puregig.net
81.171.110.175	PTR	81-171-110-175.ipvanish.com
81.171.110.182	PTR	unknown.puregig.net
81.171.110.185	PTR	unknown.puregig.net
81.171.110.187	PTR	unknown.puregig.net
81.171.110.190	PTR	unknown.puregig.net
81.171.110.191	PTR	unknown.puregig.net
81.171.110.192	A+PTR	81-171-110-192.wlvpn.com
81.171.110.193	PTR	unknown.puregig.net
81.171.110.194	PTR	unknown.puregig.net
81.171.110.195	A+PTR	81-171-110-195.wlvpn.com
81.171.110.196	PTR	unknown.puregig.net
81.171.110.197	PTR	unknown.puregig.net
81.171.110.198	PTR	unknown.puregig.net
81.171.110.199	PTR	unknown.puregig.net
81.171.110.200	PTR	unknown.puregig.net
81.171.110.224	PTR	81-171-110-224.ipvanish.com
81.171.110.226	PTR	81-171-110-226.ipvanish.com
81.171.110.229	PTR	unknown.puregig.net
81.171.110.230	PTR	81-171-110-230.ipvanish.com
81.171.110.232	PTR	81-171-110-232.ipvanish.com
81.171.110.235	PTR	unknown.puregig.net
81.171.110.236	PTR	81-171-110-236.ipvanish.com
81.171.110.238	PTR	81-171-110-238.ipvanish.com
81.171.110.252	PTR	unknown.puregig.net
81.171.111.29	A	harley.freewayprojects.com
81.171.111.42	A	jawa.freewayprojects.com
81.171.111.43	A	willerstrom.com
81.171.111.45	A	zattemannen.nl
81.171.111.47	A	orbit2.neuromesh.com
81.171.111.47	A	orbit1.neuromesh.com
81.171.111.85	A	indian.freewayprojects.com
81.171.111.87	A	fikrtjghai7jchrhr0bltu37hn4igh57.lagenhetstockholm.com
81.171.111.87	A	vulkanutbrott.se
81.171.111.87	A	grannsiten.com
81.171.111.88	A	xn--bostder-8wa.biz
81.171.111.88	A	forextradingsystem.net
81.171.111.99	A	argovisual.ro
81.171.111.99	A	bakaiconstruction.com
81.171.111.121	A	lciproductions.co.uk
81.171.111.182	A	cosinux.be
81.171.111.200	A	mail2.chateau-logic.com
81.171.111.210	A	portis.cosinux.org
81.171.111.213	A	instant-erp.be
81.171.111.221	A	horoscoop-gratis.com