Robtex

Up: 80.238.128.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 80.238.132.0/23
Down right: 80.238.134.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.238.132.9	A+PTR	gw.ptr-80-238-132-9.customer.ch.netstream.com
80.238.132.14	PTR	gw.ptr-80-238-132-14.customer.ch.netstream.com
80.238.132.16	PTR	gw.ptr-80-238-132-16.customer.ch.netstream.com
80.238.132.59	A	gw.ptr-80-238-132-59.customer.ch.netstream.com
80.238.132.136	A+PTR	gw.ptr-80-238-132-136.customer.ch.netstream.com
80.238.132.142	PTR	gw.ptr-80-238-132-142.customer.ch.netstream.com
80.238.132.189	PTR	gw.ptr-80-238-132-189.customer.ch.netstream.com
80.238.132.211	PTR	gw.ptr-80-238-132-211.customer.ch.netstream.com
80.238.132.220	A+PTR	gw.ptr-80-238-132-220.customer.ch.netstream.com
80.238.132.227	A	gw.ptr-80-238-132-227.customer.ch.netstream.com
80.238.132.228	A	gw.ptr-80-238-132-228.customer.ch.netstream.com
80.238.132.234	A+PTR	gw.ptr-80-238-132-234.customer.ch.netstream.com
80.238.132.244	A	gw.ptr-80-238-132-244.customer.ch.netstream.com
80.238.133.4	A	mail.automoser.ch
80.238.133.11	A	gw.ptr-80-238-133-11.customer.ch.netstream.com
80.238.133.31	PTR	gw.ptr-80-238-133-31.customer.ch.netstream.com
80.238.133.51	A+PTR	gw.ptr-80-238-133-51.customer.ch.netstream.com
80.238.133.53	A	gw.ptr-80-238-133-53.customer.ch.netstream.com
80.238.133.93	A+PTR	gw.ptr-80-238-133-93.customer.ch.netstream.com
80.238.133.112	PTR	gw.ptr-80-238-133-112.customer.ch.netstream.com
80.238.133.146	A+PTR	gw.ptr-80-238-133-146.customer.ch.netstream.com
80.238.133.155	PTR	gw.ptr-80-238-133-155.customer.ch.netstream.com
80.238.133.171	A+PTR	gw.ptr-80-238-133-171.customer.ch.netstream.com
80.238.133.175	PTR	gw.ptr-80-238-133-175.customer.ch.netstream.com
80.238.133.177	A	gw.ptr-80-238-133-177.customer.ch.netstream.com
80.238.133.221	A	gw.ptr-80-238-133-221.customer.ch.netstream.com
80.238.133.231	A+PTR	gw.ptr-80-238-133-231.customer.ch.netstream.com
80.238.133.235	PTR	gw.ptr-80-238-133-235.customer.ch.netstream.com
80.238.133.244	A	gw.ptr-80-238-133-244.customer.ch.netstream.com
80.238.134.3	PTR	ns2.datacore.ch
80.238.134.64	PTR	w3.datacore.ch
80.238.134.64	A	datacore.net
80.238.134.64	A	esseda.com
80.238.134.71	A	irc.datacore.ch
80.238.134.71	A	irc-datacore.datacore.net
80.238.134.130	PTR	box.guindehi.ch
80.238.134.143	PTR	brightstar.elder.guindehi.ch
80.238.134.180	A	gallizzi.ch
80.238.134.201	A	main2.datacore.ch
80.238.134.232	A+PTR	mail.proemail.ch
80.238.134.232	A	mail4.engitech.info
80.238.134.233	PTR	mail.engitech.info
80.238.134.233	A	engitech.info
80.238.134.245	A	gentoo.datacore.ch
80.238.134.245	A	ns2.dikala.ch
80.238.134.247	A	ca.datacore.ch
80.238.134.249	A	src.datacore.ch
80.238.134.250	A	open.datacore.ch
80.238.134.253	PTR	irc.datacore.ch
80.238.134.253	A	quagga.ch
80.238.135.2	PTR	mail.execujet.ch
80.238.135.10	A	gw.ptr-80-238-135-10.customer.ch.netstream.com
80.238.135.13	A+PTR	gw.ptr-80-238-135-13.customer.ch.netstream.com
80.238.135.19	A+PTR	gw.ptr-80-238-135-19.customer.ch.netstream.com
80.238.135.20	PTR	gw.ptr-80-238-135-20.customer.ch.netstream.com
80.238.135.21	A	gw.ptr-80-238-135-21.customer.ch.netstream.com
80.238.135.38	A	gw.ptr-80-238-135-38.customer.ch.netstream.com
80.238.135.41	A	gw.ptr-80-238-135-41.customer.ch.netstream.com
80.238.135.42	A	gw.ptr-80-238-135-42.customer.ch.netstream.com
80.238.135.43	A	gw.ptr-80-238-135-43.customer.ch.netstream.com
80.238.135.48	PTR	gw.ptr-80-238-135-48.customer.ch.netstream.com
80.238.135.49	A	pirelli.sasa.ch
80.238.135.51	PTR	mail2010.sasa.ch
80.238.135.51	A	mailhost.swisshub.ch
80.238.135.51	A	mailhost.sasa.ch
80.238.135.52	A+PTR	agendax.sasa.ch
80.238.135.52	A	ftp.sasa.ch
80.238.135.64	A+PTR	gw.ptr-80-238-135-64.customer.ch.netstream.com
80.238.135.69	A+PTR	gw.ptr-80-238-135-69.customer.ch.netstream.com
80.238.135.81	A+PTR	gw.ptr-80-238-135-81.customer.ch.netstream.com
80.238.135.85	PTR	gw.ptr-80-238-135-85.customer.ch.netstream.com
80.238.135.94	PTR	gw.ptr-80-238-135-94.customer.ch.netstream.com
80.238.135.98	PTR	agate.biff.ch
80.238.135.98	A	mx.biff.ch
80.238.135.99	A+PTR	bgate.biff.ch
80.238.135.101	PTR	aix.biff.ch
80.238.135.101	A	biff.ch
80.238.135.102	A	vpn.biff.ch
80.238.135.103	PTR	gw.ptr-80-238-135-103.customer.ch.netstream.com
80.238.135.106	PTR	mail.azad.ch
80.238.135.107	A	gw.ptr-80-238-135-107.customer.ch.netstream.com
80.238.135.108	A+PTR	gw.ptr-80-238-135-108.customer.ch.netstream.com
80.238.135.110	PTR	gw.ptr-80-238-135-110.customer.ch.netstream.com
80.238.135.114	A	gw.ptr-80-238-135-114.customer.ch.netstream.com
80.238.135.116	A	gw.ptr-80-238-135-116.customer.ch.netstream.com
80.238.135.117	PTR	gw.ptr-80-238-135-117.customer.ch.netstream.com
80.238.135.118	PTR	gw.ptr-80-238-135-118.customer.ch.netstream.com
80.238.135.120	A+PTR	gw.ptr-80-238-135-120.customer.ch.netstream.com
80.238.135.122	A+PTR	gw-adsl.mtfsg.ch
80.238.135.122	A	mail.mtf-sg.ch
80.238.135.123	PTR	z.infxa.com
80.238.135.124	PTR	s1.mtfsg.ch
80.238.135.125	PTR	s0.m0n0.ch
80.238.135.126	PTR	gw.ptr-80-238-135-126.customer.ch.netstream.com
80.238.135.130	A	gw.ptr-80-238-135-130.customer.ch.netstream.com
80.238.135.132	A	gw.ptr-80-238-135-132.customer.ch.netstream.com
80.238.135.133	PTR	gw.ptr-80-238-135-133.customer.ch.netstream.com
80.238.135.135	PTR	gw.ptr-80-238-135-135.customer.ch.netstream.com
80.238.135.136	PTR	gw.ptr-80-238-135-136.customer.ch.netstream.com
80.238.135.139	PTR	gw.ptr-80-238-135-139.customer.ch.netstream.com
80.238.135.140	A	gw.ptr-80-238-135-140.customer.ch.netstream.com
80.238.135.141	A	gw.ptr-80-238-135-141.customer.ch.netstream.com
80.238.135.145	A	gw.ptr-80-238-135-145.customer.ch.netstream.com
80.238.135.149	A	gw.ptr-80-238-135-149.customer.ch.netstream.com
80.238.135.154	PTR	gw.ptr-80-238-135-154.customer.ch.netstream.com
80.238.135.156	PTR	gw.ptr-80-238-135-156.customer.ch.netstream.com
80.238.135.157	PTR	gw.ptr-80-238-135-157.customer.ch.netstream.com
80.238.135.158	A	gw.ptr-80-238-135-158.customer.ch.netstream.com
80.238.135.162	A+PTR	gw.ptr-80-238-135-162.customer.ch.netstream.com
80.238.135.163	A	gw.ptr-80-238-135-163.customer.ch.netstream.com
80.238.135.165	A	gw.ptr-80-238-135-165.customer.ch.netstream.com
80.238.135.168	A	gw.ptr-80-238-135-168.customer.ch.netstream.com
80.238.135.172	PTR	gw.ptr-80-238-135-172.customer.ch.netstream.com
80.238.135.174	PTR	gw.ptr-80-238-135-174.customer.ch.netstream.com
80.238.135.181	A+PTR	gw.ptr-80-238-135-181.customer.ch.netstream.com
80.238.135.184	A+PTR	gw.ptr-80-238-135-184.customer.ch.netstream.com
80.238.135.188	A+PTR	gw.ptr-80-238-135-188.customer.ch.netstream.com
80.238.135.191	A	gw.ptr-80-238-135-191.customer.ch.netstream.com
80.238.135.192	A+PTR	gw.ptr-80-238-135-192.customer.ch.netstream.com
80.238.135.197	PTR	gw.ptr-80-238-135-197.customer.ch.netstream.com
80.238.135.199	A+PTR	gw.ptr-80-238-135-199.customer.ch.netstream.com
80.238.135.200	A	gw.ptr-80-238-135-200.customer.ch.netstream.com
80.238.135.205	A	gw.ptr-80-238-135-205.customer.ch.netstream.com
80.238.135.207	PTR	gw.ptr-80-238-135-207.customer.ch.netstream.com
80.238.135.208	PTR	gw.ptr-80-238-135-208.customer.ch.netstream.com
80.238.135.210	PTR	gw.ptr-80-238-135-210.customer.ch.netstream.com
80.238.135.214	A+PTR	gw.ptr-80-238-135-214.customer.ch.netstream.com
80.238.135.227	PTR	gw.ptr-80-238-135-227.customer.ch.netstream.com
80.238.135.230	A+PTR	gw.ptr-80-238-135-230.customer.ch.netstream.com
80.238.135.231	A	gw.ptr-80-238-135-231.customer.ch.netstream.com
80.238.135.233	A	gw.ptr-80-238-135-233.customer.ch.netstream.com
80.238.135.236	A	gw.ptr-80-238-135-236.customer.ch.netstream.com
80.238.135.241	A+PTR	gw.ptr-80-238-135-241.customer.ch.netstream.com
80.238.135.246	PTR	gw.ptr-80-238-135-246.customer.ch.netstream.com
80.238.135.248	PTR	gw.ptr-80-238-135-248.customer.ch.netstream.com