Robtex

Up: 178.20.216.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 178.20.218.0/24
Down right: 178.20.219.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
178.20.218.4	PTR	emailserv.com
178.20.218.4	A	secment.com
178.20.218.4	A	smtp.andels.org
178.20.218.5	PTR	v0999.dotserv.com
178.20.218.5	A	mail.enavn.org
178.20.218.6	PTR	v1000.dotserv.com
178.20.218.6	A	enavn.dk
178.20.218.8	A+PTR	otrs.dotserv.com
178.20.218.11	A+PTR	v1002.dotserv.com
178.20.218.11	A	vpnhotel.com
178.20.218.15	A+PTR	ns7.chosting.dk
178.20.218.19	A	control.dotserv.com
178.20.218.56	PTR	ns1.dotserv.net
178.20.218.58	A+PTR	uptime.dotserv.com
178.20.218.61	A+PTR	ns1.dotserv.com
178.20.218.61	A	ns1.enavn.org
178.20.218.62	A+PTR	ns2.dotserv.com
178.20.218.62	A	ns2.enavn.org
178.20.218.69	PTR	iso.dotserv.com
178.20.218.74	PTR	storage3a.dotserv.com
178.20.218.79	PTR	storage3a.dotserv.com
178.20.218.79	A	errors.dk
178.20.218.79	A	cybergation.com
178.20.218.101	A+PTR	vh1.dotserv.com
178.20.218.102	PTR	emailserv.com
178.20.218.102	A	vh2.dotserv.com
178.20.218.103	PTR	vh3.dotserv.com
178.20.218.103	A	storage2a.dotserv.com
178.20.219.3	A+PTR	ns3.dns-123.net
178.20.219.5	A	mail.skeletoonians.com
178.20.219.5	A	janpetry.com
178.20.219.5	A	skeletoonians.com
178.20.219.6	A+PTR	server764.serverpark.dk
178.20.219.64	A	wordpresscms.dk
178.20.219.64	A	mail.wordpresscms.dk
178.20.219.64	A	www.wordpresscms.dk