Robtex

Up: 64.39.230.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 64.39.231.0/25
Down right: 64.39.231.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.39.231.1	PTR	64.39.231.1.static.colo.hostirian.com
64.39.231.2	PTR	64.39.231.2.static.colo.hostirian.com
64.39.231.4	PTR	64.39.231.4.static.colo.hostirian.com
64.39.231.17	PTR	64.39.231.17.static.colo.hostirian.com
64.39.231.19	PTR	64.39.231.19.static.colo.hostirian.com
64.39.231.51	PTR	64.39.231.51.static.colo.hostirian.com
64.39.231.62	PTR	64.39.231.62.static.colo.hostirian.com
64.39.231.63	PTR	64.39.231.63.static.colo.hostirian.com
64.39.231.66	PTR	64.39.231.66.static.colo.hostirian.com
64.39.231.66	A	simonrage.com
64.39.231.66	A	www.simonrage.com
64.39.231.67	A+PTR	americanmutt.org
64.39.231.67	A	*.edookie.com
64.39.231.67	A	yankeehotelfoxtrot.com
64.39.231.73	A	mail.un-impossible.com
64.39.231.81	PTR	64.39.231.81.static.colo.hostirian.com
64.39.231.91	PTR	64.39.231.91.static.colo.hostirian.com
64.39.231.93	PTR	64.39.231.93.static.colo.hostirian.com
64.39.231.97	PTR	64.39.231.97.static.colo.hostirian.com
64.39.231.102	PTR	64.39.231.102.static.colo.hostirian.com
64.39.231.110	PTR	64.39.231.110.static.colo.hostirian.com
64.39.231.114	PTR	64.39.231.114.static.colo.hostirian.com
64.39.231.116	PTR	64.39.231.116.static.colo.hostirian.com
64.39.231.118	PTR	64.39.231.118.static.colo.hostirian.com
64.39.231.127	PTR	64.39.231.127.static.colo.hostirian.com
64.39.231.138	PTR	64.39.231.138.static.colo.hostirian.com
64.39.231.141	PTR	64.39.231.141.static.colo.hostirian.com
64.39.231.143	PTR	64.39.231.143.static.colo.hostirian.com
64.39.231.152	PTR	64.39.231.152.static.colo.hostirian.com
64.39.231.155	PTR	64.39.231.155.static.colo.hostirian.com
64.39.231.166	PTR	64.39.231.166.static.colo.hostirian.com
64.39.231.179	PTR	64.39.231.179.static.colo.hostirian.com
64.39.231.179	A	ns1.lotn.org
64.39.231.179	A	dns1.lotn.org
64.39.231.180	A	jpollackphoto.com
64.39.231.180	A	stlweddingphotos.com
64.39.231.181	PTR	64.39.231.181.static.colo.hostirian.com
64.39.231.181	A	friendervendor.com
64.39.231.181	A	zestculinary.com
64.39.231.182	PTR	64.39.231.182.static.colo.hostirian.com
64.39.231.186	PTR	64.39.231.186.static.colo.hostirian.com
64.39.231.186	A	gowoofproductions.org
64.39.231.187	PTR	64.39.231.187.static.colo.hostirian.com
64.39.231.188	PTR	64.39.231.188.static.colo.hostirian.com
64.39.231.188	A	gowoofproductions.com
64.39.231.188	A	stefaniandjonathan.com
64.39.231.193	PTR	64.39.231.193.static.colo.hostirian.com
64.39.231.198	PTR	64.39.231.198.static.colo.hostirian.com
64.39.231.198	A	www.cupcakeproject.com
64.39.231.198	A	cupcakeproject.com
64.39.231.199	A	cdn.cupcakeproject.com
64.39.231.201	PTR	64.39.231.201.static.colo.hostirian.com
64.39.231.205	PTR	64.39.231.205.static.colo.hostirian.com
64.39.231.210	PTR	64.39.231.210.static.colo.hostirian.com
64.39.231.229	PTR	64.39.231.229.static.colo.hostirian.com
64.39.231.236	PTR	64.39.231.236.static.colo.hostirian.com
64.39.231.240	PTR	64.39.231.240.static.colo.hostirian.com
64.39.231.240	A	zipitevents.com
64.39.231.240	A	mail.zipitevents.com
64.39.231.241	PTR	64.39.231.241.static.colo.hostirian.com
64.39.231.241	A	fakemail.lotn.org
64.39.231.241	A	mail.danpinkard.com
64.39.231.246	PTR	64.39.231.246.static.colo.hostirian.com
64.39.231.253	PTR	64.39.231.253.static.colo.hostirian.com
64.39.231.254	PTR	64.39.231.254.static.colo.hostirian.com