Robtex

Up: 75.101.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 75.101.16.0/22
Down right: 75.101.20.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
75.101.16.6	A	mail.carnegiefoundation.org
75.101.16.130	A	kml.carnegiefoundation.org
75.101.16.131	A	gallery.carnegiefoundation.org
75.101.16.141	A	kmail.carnegiefoundation.org
75.101.16.143	A	teachingcommons.org
75.101.17.0	PTR	75-101-17-0.dsl.static.sonic.net
75.101.17.64	A	coupleideas.com
75.101.17.106	PTR	75-101-17-106.dsl.static.sonic.net
75.101.17.106	A	thomere.com
75.101.17.184	PTR	casanova.coolbones.net
75.101.17.184	A	smtp.coolbones.net
75.101.17.184	A	dns0.coolbones.net
75.101.17.185	PTR	75-101-17-185.dsl.static.sonic.net
75.101.17.222	A	mail2.mettafund.org
75.101.18.0	PTR	75-101-18-0.dsl.static.sonic.net
75.101.18.42	A	amateur-philosophy.org
75.101.18.42	A	kendalls.org
75.101.18.162	A+PTR	penguin.postmodern.com
75.101.18.165	A	heathrow.postmodern.com
75.101.18.166	A	berch.org
75.101.18.216	PTR	mail.abbitt.org
75.101.19.32	PTR	75-101-19-32.dedicated.static.sonic.net
75.101.19.48	PTR	75-101-19-48.dedicated.static.sonic.net
75.101.19.192	A	ns1.dsltransport.net
75.101.19.193	A+PTR	ns1-dsl.softcom.net
75.101.19.195	A	dns1.pacific.net
75.101.19.196	A	optns1.sonic.net
75.101.19.224	A+PTR	ns2.dsltransport.net
75.101.19.227	A	dns2.pacific.net
75.101.21.16	A	penguintel.net
75.101.21.165	A	75-101-21-165.dsl.dynamic.sonic.net
75.101.22.131	PTR	75-101-22-131.dsl.dynamic.sonic.net
75.101.22.131	A	koutsoyannis.com
75.101.22.180	A	www.springsurprise.com
75.101.22.222	A	75-101-22-222.dsl.dynamic.sonic.net
75.101.22.238	A	75-101-22-238.dsl.dynamic.sonic.net
75.101.23.38	A	75-101-23-38.dsl.dynamic.sonic.net
75.101.23.117	A	75-101-23-117.dsl.dynamic.sonic.net
75.101.23.188	A	75-101-23-188.dsl.dynamic.sonic.net
75.101.23.191	A	75-101-23-191.dsl.dynamic.sonic.net
75.101.23.194	A+PTR	75-101-23-194.dsl.dynamic.sonic.net