Robtex

Up: 217.75.144.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 217.75.144.0/22
Down right: 217.75.148.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.75.145.37	A	mail.aramet-bg.com
217.75.145.37	A	mail.infocomputers.com
217.75.145.37	A	mail.hypermail.bg
217.75.145.40	A+PTR	ns2.hypermail.bg
217.75.145.40	A	ns2.145.75.217.in-addr.arpa
217.75.145.41	A+PTR	hypermail.bg
217.75.145.41	A	www.hypermail.bg
217.75.145.42	PTR	ip-42.hypermail.bg
217.75.146.25	PTR	zer0c00l
217.75.146.32	PTR	zer0c00l
217.75.146.34	PTR	zer0c00l
217.75.146.38	A	s.butilka.vodka.hvashtam.cherna.kotka.b3.tl
217.75.146.41	A	drop.irc-mafia.net
217.75.146.51	PTR	zer0c00l
217.75.146.51	A	richman.bg.tl
217.75.146.52	A	ssh.shells.bg
217.75.146.56	A	root.executie.org
217.75.146.58	A+PTR	one.bg.tl
217.75.146.59	PTR	zer0c00l
217.75.146.85	A	217.75.146.2.b0t.name.shells.bg
217.75.146.98	A+PTR	ns1.streambg.net
217.75.146.98	A	ns2.netwlan.net
217.75.146.98	A	ns2.paralax.org
217.75.146.117	A	gimic.bg.tl
217.75.146.119	A	gimic.bg.tl
217.75.146.121	A	crew.biglamers.org
217.75.146.131	A	nemezanimavai.b6b.info
217.75.146.133	PTR	zer0c00l
217.75.146.134	A	irc.netcom.bg
217.75.146.144	PTR	zer0c00l
217.75.146.145	PTR	zer0c00l
217.75.146.146	PTR	zer0c00l
217.75.146.147	PTR	zer0c00l
217.75.146.162	PTR	zer0c00l
217.75.146.163	PTR	zer0c00l
217.75.146.169	PTR	zer0c00l
217.75.146.170	PTR	zer0c00l
217.75.146.218	PTR	zer0c00l
217.75.146.246	A	ne.plachi.milo.moe.momiche.b6b.info
217.75.147.9	A	ns2.nextpointhost.biz
217.75.147.20	A	noligarchy.net
217.75.147.224	PTR	katrina.nextpointhost.com