Robtex

Up: 193.141.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 193.141.72.0/22
Down right: 193.141.76.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
193.141.72.41	A	mail.triquid.eu
193.141.72.211	A	mail.keulenmoors.nl
193.141.72.211	A	mail.keulen-bv.nl
193.141.72.211	A	mail.keulenmoors.be
193.141.73.1	PTR	static.kpn.net
193.141.73.50	A	mx1.dedriehoek.nl
193.141.73.64	PTR	static.kpn.net
193.141.73.218	PTR	static.kpn.net
193.141.73.218	A	mail.helmhudig.nl
193.141.73.241	PTR	mail-in.wijnenbouw.com
193.141.73.241	A	mail-in.smitssomeren.com
193.141.73.241	A	mail-in.smitsbouwbedrijfsomeren.nl
193.141.74.16	PTR	static.kpn.net
193.141.74.74	PTR	static.kpn.net
193.141.74.147	PTR	static.kpn.net
193.141.74.160	PTR	static.kpn.net
193.141.74.234	PTR	static.kpn.net
193.141.76.8	PTR	static.kpn.net
193.141.76.18	PTR	static.kpn.net
193.141.76.72	PTR	static.kpn.net
193.141.76.121	PTR	static.kpn.net
193.141.76.139	PTR	static.kpn.net
193.141.76.146	PTR	static.kpn.net
193.141.76.162	PTR	static.kpn.net
193.141.76.185	PTR	static.kpn.net
193.141.76.187	PTR	static.kpn.net
193.141.77.34	PTR	static.kpn.net
193.141.77.73	PTR	static.kpn.net
193.141.78.40	PTR	static.kpn.net
193.141.78.73	PTR	static.kpn.net
193.141.79.94	A	mail.rebes.nl
193.141.79.94	A	mail.fairwayshipping.nl
193.141.79.94	A	mail.fairwayshipping.be