Robtex

Up: 89.251.240.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 89.251.240.0/23
Down right: 89.251.242.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
89.251.240.70	A	speedtest.wambo.ch
89.251.240.97	A+PTR	ns1.wambo.ch
89.251.240.105	A+PTR	ns2.wambo.ch
89.251.240.134	A+PTR	mail1.argonet.ch
89.251.240.134	PTR	mail2.argonet.ch
89.251.240.134	A	mail1.argonet.biz
89.251.240.225	A+PTR	esrv-ded-01.mychameleon.ch
89.251.240.225	A	www.acf.ch
89.251.240.225	A	en-cycle-pedia.ch
89.251.240.229	A	mail.emoti.swiss
89.251.240.229	A	mail.sementina.ch
89.251.240.229	A	mail.blenio.com
89.251.240.232	A	cdabr.ch
89.251.240.236	PTR	mail.amb.ch
89.251.240.236	PTR	mail.grupposentieri.ch
89.251.240.236	PTR	mail.cpa-sementina.ch