Robtex

Up: 81.171.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 81.171.48.0/21
Down right: 81.171.56.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.171.48.19	PTR	ew-voice-81-171-48-19.eweka.nl
81.171.50.117	A	nmdc.at
81.171.50.237	A	overplay.net
81.171.50.239	PTR	www.highwinds.com
81.171.50.239	A	puregig.com
81.171.50.241	A	pureusenet.nl
81.171.50.241	A	www.pureusenet.nl
81.171.50.241	A	secure.pureusenet.nl
81.171.50.242	A	sunnyusenet.nl
81.171.52.1	A+PTR	gateway-bru-b.ipvanish.com
81.171.52.2	A	bru-b01.ipvanish.com
81.171.52.3	PTR	81-171-52-3.ipvanish.com
81.171.52.31	A	broadcast-bru-b.ipvanish.com
81.171.52.33	A	gateway-par-b.ipvanish.com
81.171.52.41	PTR	81-171-52-41.ipvanish.com
81.171.52.63	A	broadcast-par-b.ipvanish.com
81.171.52.66	PTR	unknown.puregig.net
81.171.52.95	PTR	unknown.puregig.net
81.171.52.98	A	bud-b01.ipvanish.com
81.171.52.125	PTR	81-171-52-125.ipvanish.com
81.171.52.127	A+PTR	broadcast-bud-b.ipvanish.com
81.171.52.163	PTR	81-171-52-163.ipvanish.com
81.171.52.191	A	broadcast-waw-b.ipvanish.com
81.171.52.223	PTR	unknown.puregig.net
81.171.52.225	A	gateway-sto-b.ipvanish.com
81.171.52.226	A	sto-b01.ipvanish.com
81.171.52.227	PTR	81-171-52-227.ipvanish.com
81.171.52.229	PTR	81-171-52-229.ipvanish.com
81.171.52.255	A	broadcast-sto-b.ipvanish.com
81.171.53.2	A	cph-b01.ipvanish.com
81.171.53.2	A	cph.ipvanish.com
81.171.53.13	A	cph-b01.wlvpn.com
81.171.53.31	A	broadcast-cph-b.ipvanish.com
81.171.53.32	PTR	unknown.puregig.net
81.171.56.8	A+PTR	81-171-56-8.ipvanish.com
81.171.56.8	PTR	ams-a03.ipvanish.com
81.171.56.8	A	tgprxy.ml
81.171.56.9	A	ams.wlvpn.com
81.171.56.10	A	tgprxy.ml
81.171.56.10	A	ams.socks.ipvanish.com
81.171.56.11	A	ams.wlvpn.com
81.171.56.12	A	tgprxy.ml
81.171.56.12	A	ams.socks.ipvanish.com
81.171.56.13	A	ams.wlvpn.com
81.171.56.14	A	tgprxy.ml
81.171.56.14	A	ams.socks.ipvanish.com
81.171.56.15	A	ams.wlvpn.com
81.171.56.16	A+PTR	81-171-56-16.ipvanish.com
81.171.56.16	A+PTR	ams-a07.ipvanish.com
81.171.56.16	A	tgprxy.ml
81.171.56.17	PTR	81-171-56-17.wlvpn.com
81.171.56.17	A	ams.wlvpn.com
81.171.56.18	PTR	ams-a08.ipvanish.com
81.171.56.18	PTR	81-171-56-18.ipvanish.com
81.171.56.18	A	tgprxy.ml
81.171.56.19	A	ams.wlvpn.com
81.171.56.20	A	tgprxy.ml
81.171.56.20	A	ams.socks.ipvanish.com
81.171.56.22	A	ams.socks.ipvanish.com
81.171.56.23	A	ams.wlvpn.com
81.171.56.24	A	ams.socks.ipvanish.com
81.171.56.25	A	ams.wlvpn.com
81.171.56.26	A	ams.socks.ipvanish.com
81.171.56.27	A	ams.wlvpn.com
81.171.56.28	A	ams.socks.ipvanish.com
81.171.56.29	A	ams.wlvpn.com
81.171.56.30	A	ams.socks.ipvanish.com
81.171.56.31	A	ams.wlvpn.com
81.171.56.96	PTR	81-171-56-96.ipvanish.com
81.171.56.109	PTR	81-171-56-109.ipvanish.com
81.171.56.138	PTR	81-171-56-138.ipvanish.com
81.171.56.161	PTR	81-171-56-161.ipvanish.com
81.171.56.192	PTR	81-171-56-192.ipvanish.com
81.171.57.2	PTR	81-171-57-2.ipvanish.com
81.171.57.39	PTR	81-171-57-39.ipvanish.com
81.171.57.44	PTR	81-171-57-44.ipvanish.com
81.171.57.125	PTR	81-171-57-125.ipvanish.com
81.171.58.5	A+PTR	81-171-58-5.wlvpn.com
81.171.58.5	A	fra.wlvpn.com
81.171.58.6	A+PTR	81-171-58-6.ipvanish.com
81.171.58.6	PTR	fra-a20.ipvanish.com
81.171.58.7	A+PTR	81-171-58-7.wlvpn.com
81.171.58.7	A	fra.wlvpn.com
81.171.58.9	A	fra.wlvpn.com
81.171.58.11	A	fra.wlvpn.com
81.171.58.13	A	fra.wlvpn.com
81.171.58.16	A+PTR	81-171-58-16.wlvpn.com
81.171.58.16	A	fra.wlvpn.com
81.171.58.17	A	81-171-58-17.ipvanish.com
81.171.58.17	A	fra-a19.ipvanish.com
81.171.58.18	PTR	81-171-58-18.wlvpn.com
81.171.58.18	A	fra.wlvpn.com
81.171.58.20	A	fra.wlvpn.com
81.171.58.22	A	fra.wlvpn.com
81.171.58.24	A	fra.wlvpn.com
81.171.58.39	PTR	81-171-58-39.ipvanish.com
81.171.58.39	PTR	fra-a42.ipvanish.com
81.171.58.40	A+PTR	81-171-58-40.wlvpn.com
81.171.58.40	A	fra.wlvpn.com
81.171.58.41	PTR	fra-a43.ipvanish.com
81.171.58.41	PTR	81-171-58-41.ipvanish.com
81.171.58.42	A	fra.wlvpn.com
81.171.58.42	A	81-171-58-42.wlvpn.com
81.171.58.43	A	81-171-58-43.ipvanish.com
81.171.58.54	PTR	81-171-58-54.ipvanish.com
81.171.58.57	PTR	81-171-58-57.ipvanish.com
81.171.58.63	PTR	81-171-58-63.ipvanish.com
81.171.58.72	PTR	81-171-58-72.ipvanish.com
81.171.58.80	PTR	81-171-58-80.ipvanish.com
81.171.58.118	PTR	81-171-58-118.ipvanish.com
81.171.58.121	PTR	81-171-58-121.ipvanish.com
81.171.58.126	A+PTR	81-171-58-126.wlvpn.com
81.171.58.126	A	fra.wlvpn.com
81.171.58.128	A	fra.wlvpn.com
81.171.58.128	A	81-171-58-128.wlvpn.com
81.171.58.130	A	fra.wlvpn.com
81.171.58.130	A	81-171-58-130.wlvpn.com
81.171.58.132	A	fra.wlvpn.com
81.171.58.132	A	81-171-58-132.wlvpn.com
81.171.58.134	A	fra.wlvpn.com
81.171.58.136	A	fra.wlvpn.com
81.171.58.138	A	fra.wlvpn.com
81.171.58.140	A	fra.wlvpn.com
81.171.58.142	A	fra.wlvpn.com
81.171.58.144	A+PTR	81-171-58-144.wlvpn.com
81.171.58.144	A	fra.wlvpn.com
81.171.58.146	A+PTR	81-171-58-146.wlvpn.com
81.171.58.146	A	fra.wlvpn.com
81.171.58.148	A	fra.wlvpn.com
81.171.58.148	A	81-171-58-148.wlvpn.com
81.171.58.150	A	fra.wlvpn.com
81.171.58.152	A	fra.wlvpn.com
81.171.58.161	PTR	81-171-58-161.ipvanish.com
81.171.58.162	PTR	81-171-58-162.ipvanish.com
81.171.58.169	PTR	81-171-58-169.ipvanish.com
81.171.58.185	PTR	81-171-58-185.ipvanish.com
81.171.58.206	PTR	81-171-58-206.ipvanish.com
81.171.58.209	PTR	81-171-58-209.ipvanish.com
81.171.58.210	PTR	81-171-58-210.ipvanish.com
81.171.59.6	PTR	81-171-59-6.ipvanish.com
81.171.59.6	A+PTR	lon-a03.ipvanish.com
81.171.59.8	A	lon.ipvanish.com
81.171.59.10	A	lon.ipvanish.com
81.171.59.14	A	lon.ipvanish.com
81.171.59.16	PTR	81-171-59-16.ipvanish.com
81.171.59.16	PTR	lon-a56.ipvanish.com
81.171.59.16	A	lon.ipvanish.com
81.171.59.18	A+PTR	lon-a57.ipvanish.com
81.171.59.18	A+PTR	81-171-59-18.ipvanish.com
81.171.59.18	A	lon.ipvanish.com
81.171.59.20	A	lon.ipvanish.com
81.171.59.22	A+PTR	81-171-59-22.ipvanish.com
81.171.59.22	PTR	lon-a59.ipvanish.com
81.171.59.22	A	lon.ipvanish.com
81.171.59.42	PTR	81-171-59-42.ipvanish.com
81.171.59.43	PTR	81-171-59-43.ipvanish.com
81.171.59.46	A	afrobraidsuk.com
81.171.59.51	PTR	81-171-59-51.ipvanish.com
81.171.59.104	PTR	81-171-59-104.ipvanish.com
81.171.59.105	PTR	81-171-59-105.ipvanish.com
81.171.59.109	PTR	81-171-59-109.ipvanish.com
81.171.59.140	PTR	81-171-59-140.ipvanish.com
81.171.59.153	PTR	81-171-59-153.ipvanish.com
81.171.59.176	PTR	81-171-59-176.ipvanish.com
81.171.59.177	PTR	81-171-59-177.ipvanish.com
81.171.59.181	PTR	81-171-59-181.ipvanish.com
81.171.59.182	PTR	81-171-59-182.ipvanish.com
81.171.59.250	PTR	81-171-59-250.ipvanish.com
81.171.60.79	A+PTR	lvs005.fr7.hwcdn.net
81.171.60.102	A+PTR	cds002.fr7.hwcdn.net
81.171.60.119	A+PTR	old-redirect.fr7.hwcdn.net
81.171.60.120	A+PTR	old-redirect.fr7.hwcdn.net
81.171.60.121	PTR	redirect.fr7.hwcdn.net
81.171.60.121	A	old-redirect.fr7.hwcdn.net
81.171.60.122	PTR	redirect.fr7.hwcdn.net
81.171.60.122	A	old-redirect.fr7.hwcdn.net
81.171.60.123	A	old-redirect.fr7.hwcdn.net
81.171.60.124	A	old-redirect.fr7.hwcdn.net
81.171.60.150	A+PTR	cds063.fr7.hwcdn.net
81.171.60.192	A+PTR	dop020.fr7.hwcdn.net
81.171.60.210	A+PTR	dop026.fr7.hwcdn.net