Robtex

Up: 63.245.172.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 63.245.173.0/25
Down right: 63.245.173.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
63.245.173.3	PTR	host-63-245-173-3.ip.hbcomm.net
63.245.173.8	PTR	host-63-245-173-8.ip.hbcomm.net
63.245.173.13	PTR	host-63-245-173-13.ip.hbcomm.net
63.245.173.19	PTR	host-63-245-173-19.ip.hbcomm.net
63.245.173.34	PTR	host-63-245-173-34.ip.hbcomm.net
63.245.173.39	PTR	host-63-245-173-39.ip.hbcomm.net
63.245.173.77	PTR	host-63-245-173-77.ip.hbcomm.net
63.245.173.103	PTR	host-63-245-173-103.ip.hbcomm.net
63.245.173.116	PTR	host-63-245-173-116.ip.hbcomm.net
63.245.173.124	PTR	host-63-245-173-124.ip.hbcomm.net
63.245.173.142	PTR	host-63-245-173-142.ip.hbcomm.net
63.245.173.168	PTR	host-63-245-173-168.ip.hbcomm.net
63.245.173.169	PTR	host-63-245-173-169.ip.hbcomm.net
63.245.173.170	PTR	host-63-245-173-170.ip.hbcomm.net
63.245.173.187	A+PTR	host-63-245-173-187.ip.hbcomm.net
63.245.173.189	PTR	host-63-245-173-189.ip.hbcomm.net
63.245.173.196	PTR	host-63-245-173-196.ip.hbcomm.net
63.245.173.212	A+PTR	host-63-245-173-212.ip.hbcomm.net
63.245.173.214	PTR	host-63-245-173-214.ip.hbcomm.net
63.245.173.219	PTR	host-63-245-173-219.ip.hbcomm.net
63.245.173.222	PTR	host-63-245-173-222.ip.hbcomm.net
63.245.173.227	A+PTR	moodle.usd355.org
63.245.173.232	A	gwia.usd355.org
63.245.173.239	PTR	host-63-245-173-239.ip.hbcomm.net
63.245.173.240	PTR	host-63-245-173-240.ip.hbcomm.net
63.245.173.241	PTR	63-245-173-241.kitusa.com
63.245.173.241	A	geopath.com
63.245.173.241	A	www.geopath.com
63.245.173.244	PTR	host-63-245-173-244.ip.hbcomm.net
63.245.173.249	PTR	host-63-245-173-249.ip.hbcomm.net
63.245.173.250	PTR	host-63-245-173-250.ip.hbcomm.net
63.245.173.253	PTR	host-63-245-173-253.ip.hbcomm.net
63.245.173.254	PTR	host-63-245-173-254.ip.hbcomm.net