Robtex

Up: 72.9.20.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 72.9.22.0/24
Down right: 72.9.23.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.9.22.0	A+PTR	static-72-9-22-0.cpe.metrocast.net
72.9.22.5	A+PTR	static-72-9-22-5.cpe.metrocast.net
72.9.22.30	A	mail2.thompsonmailing.com
72.9.22.54	A+PTR	autodiscover.kkclaw.com
72.9.22.54	A	mail.kkclaw.com
72.9.22.76	PTR	static-72-9-22-76.cpe.metrocast.net
72.9.22.76	A	showtexllc.com
72.9.22.76	A	ladyester.com
72.9.22.77	A+PTR	static-72-9-22-77.cpe.metrocast.net
72.9.22.87	A+PTR	static-72-9-22-87.cpe.metrocast.net
72.9.22.87	A	eastberwickpc.com
72.9.22.105	A+PTR	static-72-9-22-105.cpe.metrocast.net
72.9.22.133	A	mail.aiactitlecompany.com
72.9.22.133	A	mail.aiacabstractcompany.com
72.9.22.133	A	mail.bullandbulllaw.com
72.9.22.170	A	mail.berwick-pa.com
72.9.22.176	A	smtp.carefirstrx.com
72.9.22.180	A+PTR	static-72-9-22-180.cpe.metrocast.net
72.9.22.182	A	remote.homesteadfurn.com
72.9.22.190	PTR	static-72-9-22-190.cpe.metrocast.net
72.9.22.190	A	mail.deluxehomes.com
72.9.22.190	A	mail.deluxebuildingsystems.com
72.9.22.197	A	remote.kfabinc.com
72.9.22.201	PTR	static-72-9-22-201.cpe.metrocast.net
72.9.22.201	A	networkisi.com
72.9.22.201	A	ns1.networkisi.com
72.9.22.208	A	smtp.techniservinc.com
72.9.22.228	PTR	static-72-9-22-228.pae.cpe.atlanticbb.net
72.9.22.228	A	synecticssystems.com
72.9.22.251	A+PTR	static-72-9-22-251.cpe.metrocast.net
72.9.22.251	A	mail.physres.biz
72.9.22.255	PTR	static-72-9-22-255.cpe.metrocast.net
72.9.23.1	A	d-72-9-23-1.cpe.metrocast.net
72.9.23.8	A+PTR	d-72-9-23-8.cpe.metrocast.net
72.9.23.25	A+PTR	d-72-9-23-25.cpe.metrocast.net
72.9.23.32	A+PTR	d-72-9-23-32.cpe.metrocast.net
72.9.23.44	A+PTR	d-72-9-23-44.pae.cpe.atlanticbb.net
72.9.23.61	PTR	d-72-9-23-61.cpe.metrocast.net
72.9.23.87	A+PTR	d-72-9-23-87.cpe.metrocast.net
72.9.23.117	A+PTR	d-72-9-23-117.cpe.metrocast.net
72.9.23.131	A+PTR	d-72-9-23-131.cpe.metrocast.net
72.9.23.133	A+PTR	d-72-9-23-133.cpe.metrocast.net
72.9.23.134	A+PTR	d-72-9-23-134.cpe.metrocast.net
72.9.23.154	A+PTR	d-72-9-23-154.cpe.metrocast.net
72.9.23.156	PTR	d-72-9-23-156.pae.cpe.atlanticbb.net
72.9.23.156	A	d-72-9-23-156.cpe.metrocast.net
72.9.23.163	A+PTR	d-72-9-23-163.cpe.metrocast.net
72.9.23.181	A+PTR	d-72-9-23-181.cpe.metrocast.net
72.9.23.184	A+PTR	d-72-9-23-184.cpe.metrocast.net
72.9.23.185	A+PTR	d-72-9-23-185.cpe.metrocast.net
72.9.23.201	A+PTR	d-72-9-23-201.cpe.metrocast.net
72.9.23.206	A+PTR	d-72-9-23-206.cpe.metrocast.net
72.9.23.215	A+PTR	d-72-9-23-215.cpe.metrocast.net
72.9.23.216	A+PTR	d-72-9-23-216.cpe.metrocast.net
72.9.23.217	A+PTR	d-72-9-23-217.cpe.metrocast.net
72.9.23.225	A+PTR	d-72-9-23-225.cpe.metrocast.net
72.9.23.227	A+PTR	d-72-9-23-227.cpe.metrocast.net
72.9.23.241	A+PTR	d-72-9-23-241.cpe.metrocast.net
72.9.23.252	A+PTR	d-72-9-23-252.cpe.metrocast.net
72.9.23.255	PTR	d-72-9-23-255.cpe.metrocast.net