Robtex

Up: 193.93.64.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 193.93.64.0/24
Down right: 193.93.65.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
193.93.64.10	PTR	host010.gscf.com
193.93.64.10	A	mx02.gscf.com
193.93.64.14	A+PTR	smtp2.gscf.com
193.93.64.14	A	smtp2.gscf-adf.com
193.93.64.14	A	ns2.gscf.com
193.93.64.27	PTR	host027.gscf.com
193.93.65.27	PTR	host027.gscf.com