Robtex

Up: 77.72.176.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 77.72.180.0/23
Down right: 77.72.182.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
77.72.181.7	A+PTR	web-ux-03.dmz-03.hiho.ch
77.72.181.7	A	decolla.ch
77.72.181.7	A	trembo.com
77.72.181.9	A+PTR	mailin.hiho.ch
77.72.181.9	A	mailin-002.dmz-03.hiho.ch
77.72.181.42	PTR	static3.accessnet-01.hiho.ch
77.72.181.65	A	talkto.gebaschtel.ch
77.72.181.67	A	r3000.gebaschtel.ch
77.72.181.67	A	inkshady.ch
77.72.181.67	A	remus.gebaschtel.ch
77.72.181.75	A	perspiraterie.com
77.72.181.81	A	webmail.circon.net
77.72.181.129	PTR	extranet.brunner-vignola.ch
77.72.181.129	A	mail.brunner-vignola.ch
77.72.181.136	A	www.gordini-club.ch
77.72.181.136	A	garagekrauer.ch
77.72.181.136	A	gordini-club.ch
77.72.181.139	PTR	ki-srv-01.cust.hosted-network.ch
77.72.181.154	A	atsuite.ch
77.72.181.154	A	advisorydesk-net.mail.protection.outlook.com.advisorydesk.net
77.72.181.154	A	advisorydesk.net
77.72.181.158	A	smartview24.com
77.72.181.162	PTR	mail.myshare.ch
77.72.181.162	A	advisorydesk.net
77.72.181.162	A	grolp.com
77.72.181.164	A+PTR	mail.s3cc.com
77.72.181.164	A	mail.s3cc.ch
77.72.181.164	A	mail.sport-cars.ch
77.72.181.171	A	scalaexperts.com
77.72.181.171	A	produs.ch
77.72.181.172	A	netfolder.ch
77.72.183.34	A	www.geni.ch
77.72.183.34	A	lamju.ch
77.72.183.34	A	geni.ch
77.72.183.36	A	ns2.geni.ch
77.72.183.38	A+PTR	mail.geni.ch
77.72.183.38	A+PTR	mail.officeprinz.ch
77.72.183.38	PTR	webmail.officeprinz.ch
77.72.183.42	A	ns1.officeprinz.ch
77.72.183.43	A	ns2.officeprinz.ch
77.72.183.44	A+PTR	dnsmanager.officeprinz.ch
77.72.183.48	A	ns1.geni.ch
77.72.183.73	A	mail.tobler-consulting.ch
77.72.183.75	A	mail.zibzone.com
77.72.183.75	A	fcz-1896.ch
77.72.183.75	A	www.schweiz-kanada.com
77.72.183.77	A+PTR	mail.mailon.ch
77.72.183.77	A	mail.cuoresportivo.ch
77.72.183.77	A	mail.lovecchio.ch
77.72.183.82	A	interface-booster.org
77.72.183.82	A	mail.jucker-consulting.ch
77.72.183.82	A	cuoresportivo.ch
77.72.183.83	A	fcz-1896.ch
77.72.183.83	A	cuoresportivo.ch
77.72.183.85	A	apps.workbooster.ch
77.72.183.86	A	mail.toblerimmobilien.ch
77.72.183.86	A	owa.workbooster.ch
77.72.183.88	PTR	mail.workbooster.ch
77.72.183.88	A	mail.cuoresportivo.ch
77.72.183.88	A	mail.lovecchio.ch
77.72.183.130	PTR	prod.voegele-shoes.com
77.72.183.130	A	mail.voegele.com
77.72.183.130	A	xn--vgele-shoes-rfb.com
77.72.183.133	A+PTR	mail.celsiuspro.com
77.72.183.133	A	celsiuspro.com
77.72.183.140	PTR	cust-140.accessnet-08.exasys.com
77.72.183.140	A	ottoramseier.ch
77.72.183.140	A	entec-ag.ch
77.72.183.148	A+PTR	mail.interpetrol.ch
77.72.183.149	PTR	cust-149.accessnet-08.exasys.com
77.72.183.149	A	chocolatshalba.ch
77.72.183.149	A	swiss-confisa.com
77.72.183.151	PTR	cust-151.accessnet-08.exasys.com
77.72.183.152	PTR	cust-152.accessnet-08.exasys.com
77.72.183.152	A	kabeltrommelwagen.ch
77.72.183.152	A	adapdev.ch
77.72.183.158	PTR	cust-158.accessnet-08.exasys.com
77.72.183.158	A	splcloud.ch
77.72.183.163	PTR	cust-163.accessnet-08.exasys.com
77.72.183.181	A+PTR	cust-181.accessnet-08.exasys.com
77.72.183.181	A	mail.hellers.ch
77.72.183.192	PTR	inet-192.accessnet-06.hiho.ch
77.72.183.252	A+PTR	ex.eckerthydraulik.ch