Robtex

Up: 173.255.12.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 173.255.12.0/24
Down right: 173.255.13.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
173.255.12.10	PTR	collegesyouknow.com
173.255.12.15	PTR	173-255-12-15.1uweb.com
173.255.12.22	PTR	173-255-12-22.1uweb.com
173.255.12.24	PTR	173-255-12-24.1uweb.com
173.255.12.30	PTR	173-255-12-30.1uweb.com
173.255.12.32	PTR	173-255-12-32.1uweb.com
173.255.12.46	PTR	173-255-12-46.1uweb.com
173.255.12.48	PTR	173-255-12-48.1uweb.com
173.255.12.62	PTR	173-255-12-62.1uweb.com
173.255.12.62	A	ns1.machsol.com
173.255.12.71	PTR	173-255-12-71.1uweb.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	PTR	173-255-12-86.1uweb.com
173.255.12.86	A	evs1.idrive.com
173.255.12.110	PTR	173-255-12-110.1uweb.com
173.255.12.173	PTR	173-255-12-173.1uweb.com
173.255.12.194	A	twohubs.com
173.255.12.194	A	www.twohubs.com
173.255.12.194	A	johnsonwatches.com
173.255.12.220	PTR	mail.55abc.net
173.255.12.221	PTR	mx.55abc.net
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	PTR	173-255-12-244.1uweb.com
173.255.12.244	A	ns2.cloudcoloservices.com
173.255.12.245	PTR	173-255-12-245.1uweb.com
173.255.12.245	A	minecraft.haus
173.255.12.245	A	ns3.cloudcoloservices.com
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
173.255.13.5	PTR	173-255-13-5.1uweb.com
173.255.13.30	PTR	173-255-13-30.1uweb.com
173.255.13.51	PTR	173-255-13-51.1uweb.com
173.255.13.60	PTR	173-255-13-60.1uweb.com
173.255.13.66	PTR	idrive.com
173.255.13.68	PTR	173-255-13-68.1uweb.com
173.255.13.77	PTR	173-255-13-77.1uweb.com
173.255.13.82	PTR	173-255-13-82.1uweb.com
173.255.13.85	PTR	173-255-13-85.1uweb.com
173.255.13.96	PTR	173-255-13-96.1uweb.com
173.255.13.105	PTR	173-255-13-105.1uweb.com
173.255.13.118	PTR	173-255-13-118.1uweb.com
173.255.13.120	PTR	173-255-13-120.1uweb.com
173.255.13.125	PTR	173-255-13-125.1uweb.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+PTR	mail2.oclogic.com
173.255.13.212	A	mail.gumpasting.com
173.255.13.212	A	ns2.oclogic.com
173.255.13.215	PTR	173-255-13-215.static.1uweb.com
173.255.13.215	A	www.visualimageevents.com
173.255.13.215	A	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
173.255.13.219	A	www.gumpasting.com
173.255.13.249	A	mail2.sagylaw.com
173.255.13.253	PTR	173-255-13-253.1uweb.com