Robtex

Up: 178.174.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 178.174.72.0/22
Down right: 178.174.76.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
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