Robtex

Up: 72.9.12.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 72.9.14.0/24
Down right: 72.9.15.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.9.14.0	PTR	static-72-9-14-0.cpe.metrocast.net
72.9.14.5	PTR	static-72-9-14-5.cpe.metrocast.net
72.9.14.5	A	mail.mcalms.com
72.9.14.5	A	remote.mcalms.com
72.9.14.45	A	mail.mehaffeyassociates.com
72.9.14.56	A+PTR	static-72-9-14-56.cpe.metrocast.net
72.9.14.58	A+PTR	static-72-9-14-58.cpe.metrocast.net
72.9.14.88	A+PTR	static-72-9-14-88.cpe.metrocast.net
72.9.14.93	A+PTR	static-72-9-14-93.cpe.metrocast.net
72.9.14.124	A	cftsharepoint.com
72.9.14.143	PTR	static-72-9-14-143.cpe.metrocast.net
72.9.14.143	A	mail.paxpartnership.org
72.9.14.161	A+PTR	static-72-9-14-161.cpe.metrocast.net
72.9.14.171	PTR	static-72-9-14-171.cpe.metrocast.net
72.9.14.171	A	tcainc.us
72.9.14.171	A	mail.tcainc.us
72.9.14.176	A	mail.baymediaservices.com
72.9.14.187	PTR	static-72-9-14-187.cpe.metrocast.net
72.9.14.187	A	mail.mgfh.com
72.9.14.205	A+PTR	static-72-9-14-205.cpe.metrocast.net
72.9.14.205	A	gmtp.net
72.9.14.205	A	mail.gmtp.net
72.9.14.228	A+PTR	mail.sotterley.org
72.9.14.231	A+PTR	static-72-9-14-231.cpe.metrocast.net
72.9.14.231	A	tpp-ipa.org
72.9.14.234	A+PTR	static-72-9-14-234.cpe.metrocast.net
72.9.14.248	A	tqipaxriver.com
72.9.14.249	PTR	mail.yaktech.com
72.9.14.249	A	yaktech.com
72.9.14.254	PTR	static-72-9-14-254.cpe.metrocast.net
72.9.14.254	A	inphoz.com
72.9.14.255	PTR	static-72-9-14-255.cpe.metrocast.net
72.9.15.0	A+PTR	d-72-9-15-0.cpe.metrocast.net
72.9.15.1	A+PTR	d-72-9-15-1.cpe.metrocast.net
72.9.15.54	A+PTR	d-72-9-15-54.cpe.metrocast.net
72.9.15.122	A+PTR	d-72-9-15-122.cpe.metrocast.net
72.9.15.129	A	sphteven.com
72.9.15.201	A+PTR	d-72-9-15-201.cpe.metrocast.net
72.9.15.225	A+PTR	d-72-9-15-225.cpe.metrocast.net
72.9.15.236	PTR	d-72-9-15-236.cpe.metrocast.net
72.9.15.237	A+PTR	d-72-9-15-237.cpe.metrocast.net
72.9.15.238	A+PTR	d-72-9-15-238.cpe.metrocast.net
72.9.15.255	A+PTR	d-72-9-15-255.cpe.metrocast.net