Robtex

Up: 80.241.128.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 80.241.128.0/22
Down right: 80.241.132.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.241.128.16	A	fms.twinsnet.pl
80.241.128.22	A	ssl.twinsnet.pl
80.241.128.22	A	db.twinsnet.pl
80.241.128.66	A	po.twinsnet.pl
80.241.128.67	PTR	unregistered.twinix.net
80.241.128.67	A	mx.mail.twinsnet.pl
80.241.128.71	A	tx.mail.twinsnet.pl
80.241.128.72	A	in.mail.twinsnet.pl
80.241.128.98	PTR	unregistered.twinix.net
80.241.128.113	PTR	unregistered.twinix.net
80.241.128.144	PTR	unregistered.twinix.net
80.241.128.153	PTR	unregistered.twinix.net
80.241.128.184	PTR	unregistered.twinix.net
80.241.128.208	PTR	unregistered.twinix.net
80.241.128.233	PTR	unregistered.twinix.net
80.241.128.249	PTR	unregistered.twinix.net
80.241.129.193	PTR	unregistered.twinix.net
80.241.129.209	PTR	unregistered.twinix.net
80.241.129.211	PTR	unregistered.twinix.net
80.241.129.227	PTR	unregistered.twinix.net
80.241.130.2	PTR	unregistered.twinix.net
80.241.130.2	A	mail.lem.com.pl
80.241.130.17	A	r1.fast-group.com.pl
80.241.130.18	A+PTR	gw1.fast-group.com.pl
80.241.130.19	A	biuro.fast-group.com.pl
80.241.130.21	A	wwwdns2.fast-group.com.pl
80.241.130.26	A+PTR	wwwdns1.fast-group.com.pl
80.241.130.26	A	fast-group.com.pl
80.241.130.28	A	ns2.fast-group.com.pl
80.241.130.66	A+PTR	dc.twinix.net
80.241.130.67	PTR	w2.twinix.net
80.241.130.67	A	zdrodek.com
80.241.130.67	A	twinix.net
80.241.130.75	A	ntp.twinix.net
80.241.130.114	A+PTR	sl.twinix.net
80.241.130.115	A+PTR	ns.twinix.net
80.241.130.116	A	ws.twinix.net
80.241.130.117	A	db.twinix.net
80.241.130.153	A	0x12aebe7aa9.public.twinsnet.pl
80.241.130.154	PTR	unregistered.public.twinsnet.pl
80.241.130.154	A	0x12aebe7aaa.public.twinsnet.pl
80.241.130.155	PTR	unregistered.public.twinsnet.pl
80.241.130.155	A	0x12aebe7aab.public.twinsnet.pl
80.241.130.159	A	0x12aebe7aaf.bcast.public.twinsnet.pl
80.241.130.178	A+PTR	px1-wa-office.cgsa.com.pl
80.241.130.218	A+PTR	0x12aebe7aea.poznan.wardynski.com.pl
80.241.130.222	A	0x12aebe7aee.poznan.wardynski.com.pl
80.241.130.250	A	proxy.dial.twinix.net
80.241.130.251	A	proxy.dial.twinix.net
80.241.130.252	A	proxy.dial.twinix.net
80.241.130.253	A	proxy.dial.twinix.net
80.241.130.254	A	proxy.dial.twinix.net
80.241.130.254	A	mail.cag.com.pl
80.241.131.0	A+PTR	0x2fd3d32e.netwk.public.twinsnet.pl
80.241.131.1	A+PTR	0x2fd3d32f.public.twinsnet.pl
80.241.131.2	A	0x2fd3d330.public.twinsnet.pl
80.241.131.3	A	0x2fd3d331.public.twinsnet.pl
80.241.131.16	PTR	unregistered.belsat.eu
80.241.131.17	PTR	unregistered.belsat.eu
80.241.131.18	PTR	unregistered.belsat.eu
80.241.131.19	PTR	unregistered.belsat.eu
80.241.131.24	PTR	unregistered.belsat.eu
80.241.131.25	PTR	unregistered.belsat.eu
80.241.131.26	PTR	mail.belsat.eu
80.241.131.27	PTR	unregistered.belsat.eu
80.241.131.34	A+PTR	sip.halotech.pl
80.241.131.36	A	dns.krysiaki.pl
80.241.131.36	A	krysiaki.pl
80.241.131.36	A	rawicz.org
80.241.131.67	PTR	inet.bcc.org.pl
80.241.131.72	A+PTR	portal.bcc.org.pl
80.241.131.72	A	inet.bcc.org.pl
80.241.131.72	A	www.bcc.org.pl
80.241.131.73	A+PTR	portal1.bcc.org.pl
80.241.131.73	A	www.bcc.org.pl
80.241.131.89	A	pheo.net
80.241.131.89	A	www.pheo.net
80.241.131.89	A	toth.pheo.net
80.241.131.98	PTR	unregistered.twinix.net
80.241.131.98	A	mail.pir-int.com
80.241.131.98	A	pir-int.com
80.241.131.161	PTR	unregistered.twinix.net
80.241.131.169	PTR	unregistered.twinix.net
80.241.131.170	PTR	unregistered.twinix.net
80.241.131.202	PTR	unregistered.twinix.net
80.241.131.225	PTR	unregistered.twinix.net
80.241.131.227	PTR	unregistered.twinix.net
80.241.131.241	PTR	unregistered.twinix.net
80.241.132.56	PTR	unregistered.twinix.net
80.241.132.59	PTR	unregistered.twinix.net
80.241.132.72	PTR	unregistered.twinix.net
80.241.132.75	PTR	unregistered.twinix.net
80.241.132.80	PTR	unregistered.twinix.net
80.241.132.88	PTR	unregistered.twinix.net
80.241.132.99	PTR	unregistered.twinix.net
80.241.132.104	PTR	unregistered.twinix.net
80.241.132.105	PTR	unregistered.twinix.net
80.241.132.114	PTR	unregistered.twinix.net
80.241.132.121	PTR	unregistered.twinix.net
80.241.132.128	PTR	unregistered.twinix.net
80.241.132.129	PTR	unregistered.twinix.net
80.241.132.171	PTR	unregistered.twinix.net
80.241.132.208	PTR	unregistered.twinix.net
80.241.132.218	PTR	unregistered.twinix.net
80.241.132.224	PTR	unregistered.twinix.net
80.241.132.226	PTR	unregistered.twinix.net
80.241.133.42	PTR	unregistered.twinix.net
80.241.133.114	A+PTR	poczta.amcholdzynski.pl
80.241.133.114	A	mail.amcholdzynski.pl
80.241.133.114	A	ns2.powernet.pl
80.241.133.217	PTR	unregistered.twinix.net
80.241.133.219	PTR	unregistered.twinix.net
80.241.134.2	PTR	w4.twinix.net
80.241.134.2	A	syrena.com
80.241.134.2	A	a3media.net
80.241.134.3	PTR	0x2fd3d34f.bcast.twinsnet.pl
80.241.134.18	PTR	ws.archeointernet.pl
80.241.134.26	PTR	unregistered.public.twinsnet.pl
80.241.134.26	A	ws1.firemax.pl
80.241.134.27	A	po.dominikanie.pl
80.241.134.50	A+PTR	billnet.pl
80.241.134.66	A+PTR	mx.mux.twinix.net
80.241.134.66	A	mh-mx1.twinix.net
80.241.134.66	A	mx.twinsnet.pl
80.241.134.70	A	in.twinsnet.pl
80.241.134.74	A+PTR	ws.wff.pl
80.241.134.75	PTR	www.wff.pl
80.241.134.84	A	mail.twinix.net
80.241.134.84	A	mail.twinsnet.pl
80.241.134.86	A	ns.twinsnet.pl
80.241.134.86	A	dns2.twinix.net
80.241.134.87	A	spp.twinix.net
80.241.134.88	PTR	lsv.twinsnet.pl
80.241.134.89	PTR	ds2-out.dcc.twinix.net
80.241.134.91	PTR	dba1.twinsnet.pl
80.241.134.91	A	spp.twinix.net
80.241.134.114	PTR	unregistered.twinix.net
80.241.134.115	PTR	unregistered.twinix.net
80.241.134.122	PTR	unregistered.twinix.net
80.241.134.234	PTR	unregistered.twinix.net
80.241.135.72	PTR	unregistered.twinix.net
80.241.135.82	PTR	unregistered.twinix.net
80.241.135.96	PTR	unregistered.twinix.net
80.241.135.97	PTR	unregistered.twinix.net
80.241.135.104	PTR	unregistered.twinix.net
80.241.135.106	PTR	unregistered.twinix.net
80.241.135.121	PTR	unregistered.twinix.net
80.241.135.146	A+PTR	mx.twins.com.pl
80.241.135.169	PTR	unregistered.twinix.net