Robtex

Up: 194.15.120.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 194.15.120.0/23
Down right: 194.15.122.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
194.15.120.0	PTR	0.120.rt.ibs.net.pl
194.15.120.12	PTR	12.120.rt.ibs.net.pl
194.15.120.12	A	dns3.majchrowski.waw.pl
194.15.120.12	A	dns3.majherek.pl
194.15.120.130	PTR	130.120.rt.ibs.net.pl
194.15.120.150	PTR	mail.eurodriveshafts.pl
194.15.120.150	A	mail.przeguby.pl
194.15.120.180	PTR	180.120.rt.ibs.net.pl
194.15.120.214	PTR	214.120.rt.ibs.net.pl
194.15.120.246	A+PTR	mail.gliszczynski.com
194.15.120.246	A	mail.simplink.pl
194.15.120.246	A	k-wfood.com
194.15.120.247	PTR	247.120.rt.ibs.net.pl
194.15.120.248	PTR	248.120.rt.ibs.net.pl
194.15.120.248	A	mail.gliszczynski.info
194.15.120.248	A	gliszczynski.info
194.15.121.7	PTR	7.121.rt.ibs.net.pl
194.15.121.7	A	tripgenerator.pl
194.15.121.24	PTR	24.121.rt.ibs.net.pl
194.15.121.24	A	ns4.mantar.com.pl
194.15.121.53	A	mx1.bonuseurotech.com.pl
194.15.121.53	A	mx1.bonus-euro.pl
194.15.121.54	A	kocurek.ufnal.pl
194.15.121.66	PTR	66.121.rt.ibs.net.pl
194.15.121.84	PTR	84.121.rt.ibs.net.pl
194.15.121.114	PTR	114.121.rt.ibs.net.pl
194.15.122.0	PTR	0.122.rt.ibs.net.pl
194.15.122.11	A+PTR	mail.wittchen.pl
194.15.122.26	A	technicsystem.com.pl
194.15.122.46	A	mail.minimax.pl
194.15.122.46	A	netserver.minimax.pl
194.15.122.46	A	max.minimax.pl
194.15.122.52	PTR	52.122.rt.ibs.net.pl
194.15.122.52	A	minimax.pl
194.15.122.52	A	www.minimax.pl
194.15.122.68	A+PTR	mail.venture.pl
194.15.122.68	A	poczta.venture.pl
194.15.122.121	PTR	121.122.rt.ibs.net.pl
194.15.122.121	A	ns1.13a.pl
194.15.122.121	A	*.milenium.it
194.15.122.122	PTR	122.122.rt.ibs.net.pl
194.15.122.141	A+PTR	mail.bpw.pl
194.15.122.190	A	stan.waw.pl
194.15.122.198	A	mail.dawoj.com.pl
194.15.122.222	A+PTR	smtp.greensender.info
194.15.123.6	PTR	6.123.rt.ibs.net.pl
194.15.123.7	PTR	7.123.rt.ibs.net.pl
194.15.123.10	PTR	10.123.rt.ibs.net.pl
194.15.123.11	PTR	11.123.rt.ibs.net.pl
194.15.123.13	PTR	13.123.rt.ibs.net.pl
194.15.123.14	PTR	14.123.rt.ibs.net.pl
194.15.123.21	PTR	21.123.rt.ibs.net.pl
194.15.123.25	PTR	25.123.rt.ibs.net.pl
194.15.123.26	PTR	26.123.rt.ibs.net.pl
194.15.123.31	PTR	31.123.rt.ibs.net.pl
194.15.123.33	PTR	33.123.rt.ibs.net.pl
194.15.123.35	PTR	35.123.rt.ibs.net.pl
194.15.123.36	PTR	36.123.rt.ibs.net.pl
194.15.123.40	PTR	40.123.rt.ibs.net.pl
194.15.123.44	PTR	44.123.rt.ibs.net.pl
194.15.123.45	PTR	45.123.rt.ibs.net.pl
194.15.123.46	PTR	46.123.rt.ibs.net.pl
194.15.123.52	PTR	52.123.rt.ibs.net.pl
194.15.123.54	PTR	54.123.rt.ibs.net.pl
194.15.123.55	PTR	55.123.rt.ibs.net.pl
194.15.123.56	PTR	56.123.rt.ibs.net.pl
194.15.123.57	PTR	57.123.rt.ibs.net.pl
194.15.123.61	PTR	61.123.rt.ibs.net.pl
194.15.123.64	PTR	64.123.rt.ibs.net.pl
194.15.123.66	PTR	66.123.rt.ibs.net.pl
194.15.123.67	PTR	67.123.rt.ibs.net.pl
194.15.123.73	PTR	73.123.rt.ibs.net.pl
194.15.123.76	PTR	76.123.rt.ibs.net.pl
194.15.123.79	PTR	79.123.rt.ibs.net.pl
194.15.123.81	PTR	81.123.rt.ibs.net.pl
194.15.123.82	PTR	82.123.rt.ibs.net.pl
194.15.123.83	PTR	83.123.rt.ibs.net.pl
194.15.123.91	PTR	91.123.rt.ibs.net.pl
194.15.123.93	PTR	93.123.rt.ibs.net.pl
194.15.123.101	PTR	101.123.rt.ibs.net.pl
194.15.123.113	PTR	113.123.rt.ibs.net.pl
194.15.123.119	PTR	119.123.rt.ibs.net.pl
194.15.123.123	PTR	123.123.rt.ibs.net.pl
194.15.123.125	PTR	125.123.rt.ibs.net.pl
194.15.123.131	PTR	mx3.rdcserver.net
194.15.123.133	PTR	133.123.rt.ibs.net.pl
194.15.123.136	PTR	136.123.rt.ibs.net.pl
194.15.123.141	PTR	141.123.rt.ibs.net.pl
194.15.123.149	PTR	149.123.rt.ibs.net.pl
194.15.123.151	PTR	151.123.rt.ibs.net.pl
194.15.123.155	PTR	155.123.rt.ibs.net.pl
194.15.123.165	PTR	165.123.rt.ibs.net.pl
194.15.123.171	PTR	171.123.rt.ibs.net.pl
194.15.123.176	PTR	176.123.rt.ibs.net.pl
194.15.123.178	PTR	178.123.rt.ibs.net.pl
194.15.123.182	A	crossfit-bumpers.com
194.15.123.186	PTR	186.123.rt.ibs.net.pl
194.15.123.192	PTR	192.123.rt.ibs.net.pl
194.15.123.194	PTR	194.123.rt.ibs.net.pl
194.15.123.195	PTR	195.123.rt.ibs.net.pl
194.15.123.205	PTR	205.123.rt.ibs.net.pl
194.15.123.210	PTR	210.123.rt.ibs.net.pl
194.15.123.219	PTR	219.123.rt.ibs.net.pl
194.15.123.222	PTR	222.123.rt.ibs.net.pl
194.15.123.224	PTR	224.123.rt.ibs.net.pl
194.15.123.230	PTR	230.123.rt.ibs.net.pl
194.15.123.238	PTR	238.123.rt.ibs.net.pl
194.15.123.242	PTR	242.123.rt.ibs.net.pl
194.15.123.249	PTR	249.123.rt.ibs.net.pl
194.15.123.252	PTR	252.123.rt.ibs.net.pl