Robtex

Up: 83.173.224.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 83.173.240.0/21
Down right: 83.173.248.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
83.173.240.0	PTR	cust.dyn.83-173-240-0.cybernet.ch
83.173.240.0	A	0.240.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.240.12	A	bugnard.ch
83.173.240.12	A	www.bugnard.ch
83.173.240.13	A	bugnard.com
83.173.240.177	A	mail.blumenrain.ch
83.173.241.0	PTR	cust.dyn.83-173-241-0.cybernet.ch
83.173.241.0	A	0.241.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.241.14	A	exchange.b-t.ch
83.173.241.82	PTR	cust.dyn.83-173-241-82.cybernet.ch
83.173.242.0	PTR	cust.dyn.83-173-242-0.cybernet.ch
83.173.242.0	A	0.242.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.242.97	A+PTR	mail.wkl.ch
83.173.242.158	A	webmail.okleiner.ch
83.173.242.186	A	emsdcs01.dcsag.com
83.173.242.242	PTR	cust.dyn.83-173-242-242.cybernet.ch
83.173.242.246	A	zimbra4.it-mastery.com
83.173.242.250	A	richefield.ch
83.173.242.250	A	palmarella.net
83.173.242.250	A	paillat.com
83.173.243.0	A+PTR	0.243.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.243.218	A	218.243.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.244.0	PTR	cust.dyn.83-173-244-0.cybernet.ch
83.173.244.0	A	0.244.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.244.21	A	mail.condecta.ch
83.173.244.50	A+PTR	smtp.syslog.ch
83.173.244.51	A	ns1.syslog-informatique.ch
83.173.244.52	A	ns2.syslog-informatique.ch
83.173.244.129	A+PTR	gw.customize.ch
83.173.244.130	PTR	dns1.customize.ch
83.173.244.131	PTR	dns2.customize.ch
83.173.244.132	A	132.244.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.244.132	A	custo.ch
83.173.244.132	A	customize.ch
83.173.245.0	PTR	cust.dyn.83-173-245-0.cybernet.ch
83.173.245.0	A	0.245.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.245.50	PTR	mail.schotec.ch
83.173.245.50	A	mail.werge.ch
83.173.245.50	A	mail.elabo.ch
83.173.245.74	A	webmail.acribia.ch
83.173.245.90	A	polygravia.ch
83.173.246.0	PTR	cust.dyn.83-173-246-0.cybernet.ch
83.173.246.0	A	0.246.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.246.174	A	mail.tec-it.ch
83.173.246.218	A	mail.tecosbruhinag.ch
83.173.247.0	A+PTR	0.247.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.247.170	A	mail.nouvellevision.ch
83.173.247.194	A+PTR	mail.neukom-hiestand.ch
83.173.248.0	A+PTR	0.248.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.248.26	A	remote.implement.ch
83.173.248.182	A	www.erc.ch
83.173.248.242	PTR	cust.dyn.83-173-248-242.cybernet.ch
83.173.248.242	A	mail.ssa-architekten.ch
83.173.248.242	A	mail.steinmann-schmid.ch
83.173.249.0	PTR	cust.dyn.83-173-249-0.cybernet.ch
83.173.249.0	A	0.249.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.249.255	A	255.249.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.250.0	PTR	cust.dyn.83-173-250-0.cybernet.ch
83.173.250.0	A	0.250.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.250.106	A	citrix.portmann-partner.ch
83.173.250.219	A	jenkins.swisscom.ch
83.173.250.250	A	autodiscover.wuethrich-mechanik.ch
83.173.250.250	A	mail.wuethrich-mechanik.ch
83.173.251.0	PTR	cust.dyn.83-173-251-0.cybernet.ch
83.173.251.0	A	0.251.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.251.158	A	yvo.qos.ch
83.173.251.158	A	yvo.slf4j.org
83.173.251.158	A	qos.ch
83.173.251.178	PTR	178.251.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.251.178	A	mail.villacastagnola.com
83.173.252.0	A+PTR	0.252.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.253.0	PTR	cust.dyn.83-173-253-0.cybernet.ch
83.173.253.0	A	0.253.173.83.static.wline.lns.sme.cust.swisscom.ch
83.173.255.53	A	config.swisscom.ch
83.173.255.54	A	orthoglobe.com
83.173.255.54	A	nms.cybernet.ch
83.173.255.111	A	heusser.net
83.173.255.111	A	smtp.heusser.net
83.173.255.111	A	heusser.org