Robtex

Up: 217.75.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 217.75.48.0/22
Down right: 217.75.52.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.75.48.0	PTR	s.tnp.pl
217.75.48.1	PTR	tnp.pl
217.75.48.2	PTR	tnp.pl
217.75.48.8	PTR	s.tnp.pl
217.75.48.9	PTR	tnp.pl
217.75.48.10	PTR	tnp.pl
217.75.48.16	PTR	s.tnp.pl
217.75.48.17	PTR	tnp.pl
217.75.48.18	PTR	tnp.pl
217.75.48.24	PTR	s.tnp.pl
217.75.48.25	PTR	tnp.pl
217.75.48.26	PTR	tnp.pl
217.75.48.48	PTR	s.tnp.pl
217.75.48.50	PTR	deltaf-do-mielec.tnp.pl
217.75.49.6	A	mielec-217.75.49.6.mielec49.ptc.pl
217.75.49.7	A	mielec-217.75.49.7.mielec49.ptc.pl
217.75.49.10	PTR	mielec-217.75.49.10.mielec49.ptc.pl
217.75.49.10	A	sprintproject.eu
217.75.49.10	A	www.lumico.pl
217.75.49.25	PTR	mielec-217.75.49.25.mielec49.ptc.pl
217.75.49.25	A	pop3.flypolska.pl
217.75.49.25	A	camo.flypolska.pl
217.75.49.71	A	korso8.mielec49.ptc.pl
217.75.49.75	A	zst4.mielec49.ptc.pl
217.75.49.77	A	puhpola2.mielec49.ptc.pl
217.75.49.79	A	puhpola4.mielec49.ptc.pl
217.75.49.84	A	taran5.mielec49.ptc.pl
217.75.49.85	A	taran6.mielec49.ptc.pl
217.75.49.90	A	korso11.mielec49.ptc.pl
217.75.49.96	A	euroeko1.mielec49.ptc.pl
217.75.49.98	A	euroeko3.mielec49.ptc.pl
217.75.49.102	A	mieszkowscy3.mielec49.ptc.pl
217.75.49.106	A	comarch3.mielec49.ptc.pl
217.75.49.107	A	comarch4.mielec49.ptc.pl
217.75.49.112	A	zso1.mielec49.ptc.pl
217.75.49.115	A	zso4.mielec49.ptc.pl
217.75.49.119	A	zso8.mielec49.ptc.pl
217.75.49.120	A	fakro1.mielec49.ptc.pl
217.75.49.123	A	fakro4.mielec49.ptc.pl
217.75.49.214	A	mail.mpec.mielec.pl
217.75.49.252	A	mielec-217.75.49.252.mielec49.ptc.pl
217.75.49.255	A	mielec-217.75.49.255.mielec49.ptc.pl
217.75.50.21	A	pegiel.pl
217.75.50.21	A	www.eurodiesel.pl
217.75.50.21	A	eurodiesel.pl
217.75.50.40	PTR	host-217-75-50-40.dynamic.mm.pl
217.75.50.100	A	put.mielec.pl
217.75.50.100	A	enigma.put.mielec.pl
217.75.50.128	PTR	217.75.50.128.mielec50.tnp.pl
217.75.51.128	PTR	217.75.51.128.mielec51.tnp.pl
217.75.51.191	A	217.75.51.191.mielec51.tnp.pl
217.75.51.192	PTR	217.75.51.192.mielec51.tnp.pl
217.75.51.219	A+PTR	217.75.51.219.mielec51.tnp.pl
217.75.51.250	A+PTR	217.75.51.250.mielec51.tnp.pl
217.75.52.0	PTR	217.75.52.0.debica52.tnp.pl
217.75.52.62	A	217.75.52.62.debica52.tnp.pl
217.75.52.81	PTR	host-217-75-52-81.dynamic.mm.pl
217.75.52.81	A	217.75.52.81.debica52.tnp.pl
217.75.52.131	A+PTR	217.75.52.131.debica52.tnp.pl
217.75.52.164	A	konatsu.pl
217.75.53.0	PTR	debica-217.75.53.0.debica53.ptc.pl
217.75.53.122	PTR	host-217-75-53-122.dynamic.mm.pl
217.75.54.50	PTR	debica-217.75.54.50.debica54.ptc.pl
217.75.54.50	A	ates.pl
217.75.54.52	A	poczta.ates.pl
217.75.54.82	A+PTR	debica-217.75.54.82.debica54.ptc.pl
217.75.54.82	A	mail.trans-poludnie.pl
217.75.54.83	A+PTR	debica-217.75.54.83.debica54.ptc.pl
217.75.54.83	A	ns1.trans-poludnie.pl
217.75.54.88	PTR	debica-217.75.54.88.debica54.ptc.pl
217.75.54.88	A	mail2.trans-poludnie.pl
217.75.54.126	A	energomarket.pl
217.75.54.234	A	mx2.lerg.pl
217.75.54.234	A	mx2.lergchem.pl
217.75.54.241	PTR	host-217-75-54-241.dynamic.mm.pl
217.75.54.242	A	ssl.sniezka.pl
217.75.54.243	PTR	poczta1.sniezka.com
217.75.54.243	PTR	host-217-75-54-243.dynamic.mm.pl
217.75.54.243	A	poczta1.signomal.com.pl
217.75.54.252	A	crm.sniezka.pl
217.75.54.254	A	ftp.sniezka.com
217.75.55.0	PTR	host-217-75-55-0.dynamic.mm.pl
217.75.55.0	A	debica-217.75.55.0.debica55.ptc.pl