Robtex

Up: 204.15.142.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 204.15.142.0/25
Down right: 204.15.142.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.15.142.0	PTR	acmecargo.com
204.15.142.2	PTR	cockroachespests.com
204.15.142.44	PTR	lakeside-behavioral-kdy-air-44.power1.com
204.15.142.44	A	www.lasdefense.com
204.15.142.44	A	lasdefense.com
204.15.142.52	PTR	eurografix.com
204.15.142.61	PTR	vacant-61.power1.com
204.15.142.98	PTR	vacant.power1.com
204.15.142.98	A	rebutan.net
204.15.142.98	A	neochinsc.com
204.15.142.100	PTR	stries.net
204.15.142.100	A	hostmaster.stries.net
204.15.142.100	A	mx1.stries.net
204.15.142.106	A	ns2.thismek.net
204.15.142.106	A	ns2.paranutri.net
204.15.142.107	PTR	mysob.net
204.15.142.107	A	ns1.thismek.net
204.15.142.110	PTR	fv-mesg-up.mysob.net
204.15.142.195	PTR	vacant.power1.com
204.15.142.220	PTR	vacant.power1.com
204.15.142.234	PTR	vacant.power1.com
204.15.142.237	PTR	vacant.power1.com
204.15.142.251	PTR	vacant.power1.com
204.15.142.253	PTR	vacant.power1.com