Robtex

Up: 83.137.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 83.137.80.0/22
Down right: 83.137.84.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
83.137.80.10	A	ns1.fibrelac.ch
83.137.80.10	A	ns1.fibrelac.com
83.137.80.11	A+PTR	90dns01.fibrelac.com
83.137.80.11	A	90dns01.fibrelac.ch
83.137.80.22	A	ns2.eefpowernet.ch
83.137.80.34	A+PTR	01srv01.fibrelac.com
83.137.80.34	A	01srv01.fibrelac.ch
83.137.80.58	PTR	hotelastra-58.rev.fibrelac.com
83.137.80.65	A+PTR	mail.creatives.com
83.137.80.66	A+PTR	vesrv066.creatives.com
83.137.80.68	A	vesrv068.creatives.com
83.137.80.68	A	mail.baertschis.com
83.137.80.72	A	vesrv072.creatives.com
83.137.80.73	A	vesrv073.creatives.com
83.137.80.74	A	vesrv074.creatives.com
83.137.80.75	A	vesrv075.creatives.com
83.137.80.82	A+PTR	02srv01.fibrelac.com
83.137.80.82	A	02srv01.fibrelac.ch
83.137.80.85	A	90nms01.fibrelac.ch
83.137.80.85	A	90nms01.fibrelac.com
83.137.80.88	A+PTR	02srv02.fibrelac.com
83.137.80.88	PTR	srv-range-88.fibrelac.com
83.137.80.90	A+PTR	09srv01.fibrelac.com
83.137.80.90	A	09srv01.fibrelac.ch
83.137.80.91	A+PTR	02srv03.fibrelac.com
83.137.80.91	PTR	srv-range-91.fibrelac.com
83.137.80.129	A	vesrv129.creatives.com
83.137.80.130	A	vesrv130.creatives.com
83.137.80.131	A	vesrv131.creatives.com
83.137.80.132	A	vesrv132.creatives.com
83.137.80.136	A+PTR	vesrv136.creatives.com
83.137.80.146	PTR	pa-assurance.ch
83.137.80.146	A	dns1.funtana.fr
83.137.80.147	A+PTR	dns2.funtana.fr
83.137.80.149	A	www1.funtana.fr
83.137.80.149	A	www.funtana.fr
83.137.80.178	PTR	f.gamboni.org
83.137.80.178	A	6v8.gamboni.org
83.137.80.187	A	beas77.funtana.fr
83.137.80.202	A	gwflan.fibrelac.com
83.137.80.202	A	gwflan.fibrelac.ch
83.137.80.203	A+PTR	mail.fibrelac.com
83.137.80.203	A	mail.fibrelac.ch
83.137.81.17	PTR	17.81.rev.fibrelac.com
83.137.81.17	A	20gge.fr-ch.cust.fibrelac.ch
83.137.81.18	A	20gzh.fr-ch.cust.fibrelac.ch
83.137.81.64	PTR	64.81.rev.fibrelac.com
83.137.81.83	A	raspo.ch
83.137.81.100	PTR	smtp01-arr.quicksite.ch
83.137.81.100	A	vaudfamille.ch
83.137.81.100	A	neuchatelfamille.ch
83.137.81.103	PTR	smtp03.quicksite.ch
83.137.81.105	PTR	smtp05.quicksite.ch
83.137.81.105	A	hfsa.ch
83.137.81.105	A	hotel-le-sapin.ch
83.137.81.107	PTR	smtp07.quicksite.ch
83.137.81.109	PTR	smtp09.quicksite.ch
83.137.81.113	PTR	smtp13.quicksite.ch
83.137.81.113	A	boulangeries-polli.ch
83.137.81.113	A	www.staugustin.ch
83.137.81.115	PTR	smtp15.quicksite.ch
83.137.81.117	PTR	smtp17.quicksite.ch
83.137.81.121	PTR	smtp03v.quicksite.ch
83.137.81.121	A	www.criasaude.com.br
83.137.81.133	A	delwesteurope.biz
83.137.81.133	A	mail.ub-ts.com
83.137.81.133	A	*.ub-ts.com
83.137.81.135	A	mail.delwesteurope.com
83.137.81.140	PTR	webmail.globaljetlux.com
83.137.81.230	PTR	dns1.cortex-it.ch
83.137.81.231	PTR	dns2.cortex-it.ch
83.137.81.242	PTR	mail1.cortex-it.ch
83.137.81.243	PTR	mail2.cortex-it.ch
83.137.82.9	PTR	9.82.rev.fibrelac.com
83.137.82.19	A	rivnet.ch
83.137.82.35	A	mail.voxys.ch
83.137.82.58	PTR	58.82.rev.fibrelac.com
83.137.82.58	A	smtp.cmail.ch
83.137.82.59	A	mx.suterviandes.ch
83.137.82.59	A	smtp.suterviandes.ch
83.137.82.66	PTR	66.82.rev.fibrelac.com
83.137.82.70	A	smtp.haut-lac.ch
83.137.82.70	A	mail.haut-lac.ch
83.137.82.70	A	smtp.swissfieldtrip.com
83.137.82.73	PTR	73.82.rev.fibrelac.com
83.137.82.76	A	www.haut-lac.ch
83.137.82.76	A	europeanstudentfilmfestival.com
83.137.82.76	A	haut-lac.ch
83.137.82.80	PTR	80.82.rev.fibrelac.com
83.137.82.82	PTR	82.82.rev.fibrelac.com
83.137.82.82	A	infolio.haut-lac.ch
83.137.82.89	A	mail.vonauw.ch
83.137.82.114	PTR	114.82.rev.fibrelac.com
83.137.82.195	PTR	195.82.rev.fibrelac.com
83.137.82.212	A	ftp.galderma.com
83.137.82.215	A	wweursmtp03.galderma.com
83.137.82.215	A	smtp.galderma.com
83.137.82.229	A	mail.galderma.com
83.137.83.248	PTR	248.83.rev.fibrelac.com
83.137.84.18	A	mail.eglin.ch
83.137.85.81	PTR	81.85.rev.fibrelac.com
83.137.86.34	PTR	34.86.rev.fibrelac.com
83.137.86.99	PTR	99.86.rev.fibrelac.com
83.137.86.210	PTR	210.86.rev.fibrelac.com
83.137.87.43	PTR	43.87.rev.fibrelac.com