Robtex

Up: 51.106.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 51.107.0.0/17
Down right: 51.107.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
51.107.0.46	PTR	expertsmail.net
51.107.2.146	PTR	mail.evita.ch
51.107.2.221	PTR	antispam.bitcoinsuisse.com
51.107.4.185	A	edap-afry.com
51.107.7.139	A	upc-point.ch
51.107.41.71	A	medicalshare.ch
51.107.58.160	A	openvasp.org
51.107.58.160	A	waws-prod-zrh-001.cloudapp.net
51.107.58.160	A	balleristo.com
51.107.59.180	A	swn-breeziest-in.cloudapp.net
51.107.68.87	A	api.skynet.immosky.ch
51.107.68.87	A	starmakler.de
51.107.71.237	A	switzerlandnorthprod-dacsvc.cloudapp.net
51.107.74.171	A	dummy583.com
51.107.74.175	A	jduzdoe.com
51.107.74.175	A	jiunusaes.com
51.107.75.14	A	datahub.swisseldex.ch
51.107.75.227	A	zurich.z02a.metricstream.com
51.107.76.115	A	bank-avera.ch
51.107.76.115	A	www.bank-avera.ch
51.107.77.38	A	batinda.gov.tn
51.107.85.22	A	reda.ch
51.107.85.168	A	www.covidbot.org
51.107.85.168	A	covidbot.org
51.107.87.213	A+PTR	zenmailch0.switzerlandnorth.cloudapp.azure.com
51.107.87.213	A	protection.email.secaas.ch
51.107.88.105	A	exchange.hpnet.ch
51.107.88.105	A	hpnet.ch
51.107.88.105	A	dns1.hpnet.ch
51.107.90.108	A	cybersecurity.eu
51.107.90.216	A	accessform.hopto.org
51.107.227.233	A	switzerlandwestprod-dacsvc.cloudapp.net