Robtex

Up: 72.22.74.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 72.22.75.0/25
Down right: 72.22.75.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.22.75.9	PTR	ws16.ipowerweb.com
72.22.75.17	PTR	ws16.ipowerweb.com
72.22.75.18	PTR	ws16.ipowerweb.com
72.22.75.19	PTR	ws19.ipowerweb.com
72.22.75.20	PTR	ws19.ipowerweb.com
72.22.75.23	PTR	ws19.ipowerweb.com
72.22.75.26	A+PTR	ws16.ipowerweb.com
72.22.75.26	A	jewelrybyjjdesign.com
72.22.75.26	A	sweethearth.com
72.22.75.27	A+PTR	ws17.ipowerweb.com
72.22.75.27	A	newurbanfund.org
72.22.75.27	A	mail.newurbanfund.org
72.22.75.28	A	mail.bgworldcorp.com
72.22.75.28	A	allaboutdolls.us
72.22.75.28	A	ws18.ipowerweb.com
72.22.75.29	PTR	ws19.ipowerweb.com
72.22.75.29	A	mail.supplyrunner.com
72.22.75.29	A	mail.ab-realestate.com
72.22.75.30	PTR	ws20.ipowerweb.com
72.22.75.31	PTR	ws16.ipowerweb.com
72.22.75.33	A+PTR	ws20.ipowerweb.com
72.22.75.38	A	ws21.ipowerweb.com
72.22.75.38	A	mail.seriesnine.com
72.22.75.39	A	mail.fentex.com
72.22.75.39	A	ws22.ipowerweb.com
72.22.75.50	PTR	ws40.ipowerweb.com
72.22.75.54	A	mail.kiaeneto.com
72.22.75.91	PTR	ws16.ipowerweb.com
72.22.75.101	PTR	ws16.ipowerweb.com
72.22.75.107	A	win07.startlogic.com
72.22.75.108	A+PTR	win08.startlogic.com
72.22.75.108	A	mail.obittemp.biz
72.22.75.108	A	obittemp.biz
72.22.75.109	A+PTR	win09.startlogic.com
72.22.75.109	A	senior-cam.net
72.22.75.109	A	mail.leelanauhighlands.com
72.22.75.110	A+PTR	win10.startlogic.com
72.22.75.110	A	bitlifesciences.com.cn
72.22.75.150	PTR	ws20.ipowerweb.com
72.22.75.201	A+PTR	wsmail01.startlogic.com
72.22.75.214	PTR	win09.startlogic.com
72.22.75.215	PTR	win09.startlogic.com
72.22.75.216	PTR	win09.startlogic.com
72.22.75.225	PTR	ws16.ipowerweb.com
72.22.75.229	PTR	ws19.ipowerweb.com
72.22.75.230	PTR	ws16.ipowerweb.com
72.22.75.233	PTR	ws16.ipowerweb.com
72.22.75.235	PTR	win07.startlogic.com
72.22.75.236	PTR	win07.startlogic.com
72.22.75.239	PTR	ws17.ipowerweb.com
72.22.75.240	PTR	ws16.ipowerweb.com
72.22.75.250	PTR	ws16.ipowerweb.com
72.22.75.251	PTR	ws16.ipowerweb.com
72.22.75.254	PTR	win07.startlogic.com