Robtex

Up: 173.255.2.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 173.255.3.0/25
Down right: 173.255.3.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
173.255.3.13	PTR	173-255-3-13.1uweb.com
173.255.3.31	PTR	173-255-3-31.1uweb.com
173.255.3.42	PTR	173-255-3-42.1uweb.com
173.255.3.59	PTR	173-255-3-59.1uweb.com
173.255.3.64	PTR	173-255-3-64.1uweb.com
173.255.3.67	PTR	173-255-3-67.1uweb.com
173.255.3.82	PTR	173-255-3-82.1uweb.com
173.255.3.82	A	letsdestroytheinternet.org
173.255.3.82	A	superplayvideos.com
173.255.3.84	PTR	173-255-3-84.1uweb.com
173.255.3.98	PTR	mail.sleeis.com
173.255.3.98	A	mail.diverman.com
173.255.3.98	A	ns5.sleeis.com
173.255.3.99	A	ns6.sleeis.com
173.255.3.106	PTR	173-255-3-106.1uweb.com
173.255.3.109	PTR	173-255-3-109.1uweb.com
173.255.3.120	PTR	173-255-3-120.1uweb.com
173.255.3.156	PTR	173-255-3-156.1uweb.com
173.255.3.178	PTR	173-255-3-178.1uweb.com
173.255.3.178	A	cohorti.com
173.255.3.181	PTR	173-255-3-181.1uweb.com
173.255.3.181	A	mail.putiliving.com
173.255.3.181	A	putizen.com
173.255.3.190	PTR	173-255-3-190.1uweb.com
173.255.3.193	PTR	173-255-3-193.1uweb.com
173.255.3.193	A	ns1.alelo.com
173.255.3.194	PTR	173-255-3-194.1uweb.com
173.255.3.195	PTR	173-255-3-195.1uweb.com
173.255.3.195	A	mcdojo.org
173.255.3.196	PTR	173-255-3-196.1uweb.com
173.255.3.196	A	dns-master.alelo.com
173.255.3.200	PTR	173-255-3-200.1uweb.com
173.255.3.200	A	vatixstaffing.com
173.255.3.214	PTR	173-255-3-214.1uweb.com
173.255.3.216	PTR	173-255-3-216.1uweb.com
173.255.3.244	PTR	173-255-3-244.1uweb.com