Robtex

Up: 173.255.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 173.255.8.0/22
Down right: 173.255.12.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
173.255.8.35	PTR	mx1.keepyour-walletfat.com
173.255.8.43	A	mail.humanhealth.org
173.255.8.50	PTR	abbycareful.com
173.255.8.50	PTR	forma-animada.com
173.255.8.200	A	www.atoncedelivery.com
173.255.9.2	A+PTR	jupiter.praemittias.com
173.255.9.19	A	suicidasbikers.com
173.255.9.51	A	www.yaroo.com
173.255.9.51	A	yaroo.com
173.255.9.68	PTR	idrivesync.com
173.255.9.90	A+PTR	send.idrive.com
173.255.9.99	PTR	idrive.com
173.255.9.100	PTR	idrive.com
173.255.9.124	A+PTR	backupstatus.ibackup.com
173.255.9.125	A	askooloo.com
173.255.9.126	A	notify2.idrive.com
173.255.9.130	PTR	idrive.com
173.255.10.2	PTR	idrive.com
173.255.10.4	PTR	idrive.com
173.255.10.8	A	tap.piedesk.com
173.255.10.21	A	web5.ibackup.com
173.255.11.10	A	www.greekbill.com
173.255.11.12	A	sportcampmanager.com
173.255.11.13	A	mycampregistration.com
173.255.11.17	A	completeregistration.com
173.255.11.39	A	memberplanet.net
173.255.11.63	A	mailgw.memberplanet.net
173.255.11.111	A	realeranet03.realera.net
173.255.11.111	A	realeranet01.realera.net
173.255.11.111	A	realeranet02.realera.net
173.255.12.10	PTR	collegesyouknow.com
173.255.12.24	PTR	173-255-12-24.1uweb.com
173.255.12.32	PTR	173-255-12-32.1uweb.com
173.255.12.48	PTR	173-255-12-48.1uweb.com
173.255.12.62	A	ns1.machsol.com
173.255.12.72	PTR	173-255-12-72.1uweb.com
173.255.12.83	PTR	idrive.com
173.255.12.83	PTR	173-255-12-83.1uweb.com
173.255.12.83	A	evs.idrive.com
173.255.12.86	A	evs1.idrive.com
173.255.12.194	A	twohubs.com
173.255.12.194	A	www.twohubs.com
173.255.12.194	A	johnsonwatches.com
173.255.12.243	PTR	173-255-12-243.1uweb.com
173.255.12.243	A	cloudcoloservices.com
173.255.12.243	A	ns1.cloudcoloservices.com
173.255.12.244	A	ns2.cloudcoloservices.com
173.255.12.245	A	minecraft.haus
173.255.12.250	PTR	173-255-12-250.1uweb.com
173.255.12.250	A	cloudcoloservices.com
173.255.12.250	A	ns2.cloudcoloservices.com
173.255.13.4	PTR	173-255-13-4.1uweb.com
173.255.13.51	PTR	173-255-13-51.1uweb.com
173.255.13.66	PTR	idrive.com
173.255.13.82	PTR	173-255-13-82.1uweb.com
173.255.13.96	PTR	173-255-13-96.1uweb.com
173.255.13.105	PTR	173-255-13-105.1uweb.com
173.255.13.120	PTR	173-255-13-120.1uweb.com
173.255.13.128	PTR	173-255-13-128.1uweb.com
173.255.13.211	A+PTR	mail1.oclogic.com
173.255.13.211	A	ns1.oclogic.com
173.255.13.212	A	mail.gumpasting.com
173.255.13.212	A	mail2.oclogic.com
173.255.13.217	PTR	173-255-13-217.static.1uweb.com
173.255.13.217	A	gumpasting.com
173.255.13.217	A	clematis.org
173.255.13.219	PTR	173-255-13-219.1uweb.com
173.255.13.219	A	smallangelsfoundation.org
173.255.13.249	A	mail2.sagylaw.com
173.255.14.11	PTR	ibackup.com
173.255.14.24	PTR	ibackup.com
173.255.14.66	PTR	idrive.com
173.255.14.82	PTR	173-255-14-82.1uweb.com
173.255.14.112	PTR	173-255-14-112.1uweb.com
173.255.14.131	PTR	173-255-14-131.1uweb.com
173.255.14.137	PTR	173-255-14-137.1uweb.com
173.255.14.192	PTR	173-255-14-192.1uweb.com
173.255.14.201	PTR	173-255-14-201.1uweb.com
173.255.15.8	PTR	173-255-15-8.1uweb.com
173.255.15.16	PTR	173-255-15-16.1uweb.com
173.255.15.17	PTR	173-255-15-17.1uweb.com
173.255.15.50	PTR	173-255-15-50.1uweb.com
173.255.15.56	PTR	173-255-15-56.1uweb.com
173.255.15.64	PTR	173-255-15-64.1uweb.com
173.255.15.66	PTR	ibackup.com
173.255.15.90	PTR	173-255-15-90.1uweb.com
173.255.15.96	PTR	173-255-15-96.1uweb.com
173.255.15.122	PTR	173-255-15-122.1uweb.com
173.255.15.130	PTR	idrive.com
173.255.15.136	PTR	173-255-15-136.1uweb.com
173.255.15.168	PTR	idrive.com
173.255.15.185	PTR	173-255-15-185.1uweb.com
173.255.15.186	PTR	173-255-15-186.1uweb.com
173.255.15.194	PTR	173-255-15-194.1uweb.com