Robtex

Up: 178.174.64.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 178.174.64.0/21
Down right: 178.174.72.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
178.174.64.194	A+PTR	mail.irag.ch
178.174.64.194	A	mail.astst.ch
178.174.64.214	PTR	214.64.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.64.214	A	vlogistics.ch
178.174.65.6	A+PTR	6.65.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.65.12	A	antispam.primwest.com
178.174.65.30	A+PTR	mail.murg.ch
178.174.66.41	A	mail.ambu-tech.ch
178.174.66.118	A+PTR	mail.bodmer-chur.ch
178.174.66.194	A	mail2.sakret.ch
178.174.67.89	A	mail.conconi.com
178.174.67.194	A+PTR	mail.freshag.ch
178.174.68.170	A+PTR	170.68.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.69.219	A+PTR	smtp.zeka-ag.ch
178.174.69.243	A+PTR	mail.nutribake.ch
178.174.69.243	A	nutribake.ch
178.174.70.2	A+PTR	2.70.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.70.42	A+PTR	mails.tabourat.ch
178.174.70.174	A+PTR	174.70.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.70.174	A	mail.auto-steiner-ag.ch
178.174.70.235	PTR	uranos.tritium.ch
178.174.70.235	A	wandervoll.com
178.174.70.235	A	wandervoll.ch
178.174.70.236	PTR	hyperion.tritium.ch
178.174.70.237	PTR	genesis.tritium.ch
178.174.70.238	PTR	nemesis.tritium.ch
178.174.71.2	A+PTR	2.71.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.71.2	A	sl-p.ch
178.174.71.2	A	owa.wyssedv.ch
178.174.71.6	PTR	mail.wyssedv.ch
178.174.71.6	A	mail.wiee.hu
178.174.71.70	A+PTR	webmail.jhaefliger.ch
178.174.71.134	A	mail.zimgroup.ch
178.174.71.140	A+PTR	mail.partnersadvisers.com
178.174.71.150	A+PTR	mail.casanovadruck.ch
178.174.71.170	A+PTR	170.71.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.71.173	A+PTR	173.71.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.71.173	A	mail.swissxch.com
178.174.71.173	A	swissxch.com
178.174.72.18	A+PTR	18.72.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.72.18	A	mail-fallback.geotopo.ch
178.174.72.202	A+PTR	202.72.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.73.98	A+PTR	mail.isics.ch
178.174.73.98	A	98.73.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.74.166	A+PTR	166.74.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.74.166	A	mail3.alternativecars.ch
178.174.74.254	A+PTR	254.74.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.75.100	A+PTR	mail.n13.space
178.174.75.100	A	main.n13.space
178.174.75.101	A+PTR	ns1.n13.space
178.174.75.102	PTR	ns2.n13.space
178.174.75.102	A	n13.space
178.174.75.124	A+PTR	124.75.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.75.125	A+PTR	125.75.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.76.204	A	mail.altiqa.group
178.174.76.254	A+PTR	mail.ebco.ch
178.174.76.254	A	254.76.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.77.98	PTR	98.77.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.77.98	A	owa.hammel.ch
178.174.77.131	A	ns2.eworld.ch
178.174.77.133	A	married.ch
178.174.78.34	A+PTR	mail2.matho.net
178.174.78.34	A	dns2.matho.net
178.174.78.34	A	mail.nl-web.ch
178.174.78.83	PTR	mail.shmk.ch
178.174.78.83	A	mx1.prodonna.ch
178.174.78.106	A+PTR	106.78.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.78.106	A	ic-summary.com
178.174.78.106	A	icsummary.com
178.174.78.142	A+PTR	emitec.dyn.hugy.ch
178.174.79.10	A+PTR	mail.ursbaumann.ch
178.174.79.211	A+PTR	211.79.174.178.static.wline.lns.sme.cust.swisscom.ch
178.174.79.211	A	mailservice.flexworks.ch
178.174.79.211	A	xn--art-dma.ch