Robtex

Up: 208.72.70.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 208.72.70.0/25
Down right: 208.72.70.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.72.70.5	A+PTR	ns1.gscbn.com
208.72.70.5	A	dns2.gscbn.com
208.72.70.20	A	smtp.aspenres.com
208.72.70.53	A	mail2.landroverroaringfork.com
208.72.70.74	A	mail.crwcd.com
208.72.70.74	A	mail.coloradoriverdistrict.com
208.72.70.90	A	server.za-engineering.com
208.72.70.90	A	mail.za-engineering.com
208.72.70.90	A	mail2.za-engineering.com
208.72.70.99	A+PTR	mail.dtopc.com
208.72.70.99	A	mail2.dtopc.com
208.72.70.99	A	mail.dtcinc.us
208.72.70.107	A	labtech.dtopc.com
208.72.70.109	A	help.dtopc.com
208.72.70.122	A	mail.glenwoodcaverns.com
208.72.70.134	A	mail.climatecontrolcompany.com
208.72.70.162	PTR	svr.atkins-eng.com
208.72.70.162	A	mail.berthod.com
208.72.70.178	A	exchange.hotspringspool.com
208.72.70.181	A	reservations.hotspringspool.com
208.72.70.195	A	mail.glenwoodmedical.com
208.72.70.197	A	mail2.glenwoodmedical.com
208.72.70.226	A	g3-0.dsl-1.gscbn.net