Robtex

Up: 72.128.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 72.128.96.0/20
Down right: 72.128.112.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.128.96.52	A+PTR	cpe-72-128-96-52.wi.res.rr.com
72.128.96.60	A+PTR	cpe-72-128-96-60.wi.res.rr.com
72.128.96.60	A	kojasou.com
72.128.96.209	A+PTR	cpe-72-128-96-209.wi.res.rr.com
72.128.96.247	A+PTR	cpe-72-128-96-247.wi.res.rr.com
72.128.96.247	A	stingercentral.com
72.128.97.107	A	cpe-72-128-97-107.wi.res.rr.com
72.128.97.152	A+PTR	cpe-72-128-97-152.wi.res.rr.com
72.128.100.153	A+PTR	cpe-72-128-100-153.wi.res.rr.com
72.128.101.126	A+PTR	cpe-72-128-101-126.wi.res.rr.com
72.128.101.183	A+PTR	cpe-72-128-101-183.wi.res.rr.com
72.128.101.183	A	corntubes.com
72.128.101.206	A	cpe-72-128-101-206.wi.res.rr.com
72.128.103.131	A+PTR	cpe-72-128-103-131.wi.res.rr.com
72.128.104.68	A	gekostate.net
72.128.104.221	PTR	cpe-72-128-104-221.wi.res.rr.com
72.128.105.230	A+PTR	cpe-72-128-105-230.wi.res.rr.com
72.128.107.6	A+PTR	cpe-72-128-107-6.wi.res.rr.com
72.128.107.115	A+PTR	cpe-72-128-107-115.wi.res.rr.com
72.128.108.95	PTR	cpe-72-128-108-95.wi.res.rr.com
72.128.108.129	A+PTR	cpe-72-128-108-129.wi.res.rr.com
72.128.108.137	A+PTR	cpe-72-128-108-137.wi.res.rr.com
72.128.108.137	A	onion.gotdns.com
72.128.109.19	A+PTR	cpe-72-128-109-19.wi.res.rr.com
72.128.109.19	A	teamharmonydiscord.com
72.128.109.42	A+PTR	cpe-72-128-109-42.wi.res.rr.com
72.128.109.224	A+PTR	cpe-72-128-109-224.wi.res.rr.com
72.128.109.224	A	wikid-synapse.com
72.128.110.1	A	devgamers.com
72.128.110.33	A+PTR	cpe-72-128-110-33.wi.res.rr.com
72.128.110.33	A	www.mikeglock.com
72.128.110.33	A	mikeglock.com
72.128.110.38	PTR	cpe-72-128-110-38.wi.res.rr.com
72.128.110.149	A+PTR	cpe-72-128-110-149.wi.res.rr.com
72.128.112.40	A+PTR	cpe-72-128-112-40.wi.res.rr.com
72.128.112.40	A	birdsandbdsm.com
72.128.112.115	A+PTR	cpe-72-128-112-115.wi.res.rr.com
72.128.112.115	A	coalcreekroleplay.com
72.128.112.115	A	www.coalcreekroleplay.com
72.128.113.214	A+PTR	cpe-72-128-113-214.wi.res.rr.com
72.128.113.214	A	goldenmilopercy.com
72.128.116.26	A+PTR	cpe-72-128-116-26.wi.res.rr.com
72.128.116.40	A+PTR	cpe-72-128-116-40.wi.res.rr.com
72.128.116.40	A	technodump.com
72.128.116.40	A	mail.technodump.com
72.128.117.143	PTR	cpe-72-128-117-143.wi.res.rr.com
72.128.118.93	A	cpe-72-128-118-93.wi.res.rr.com
72.128.118.108	A	rootcreek.net
72.128.119.219	A+PTR	cpe-72-128-119-219.wi.res.rr.com
72.128.122.98	A	cpe-72-128-122-98.wi.res.rr.com
72.128.122.251	A	beer-guy.com
72.128.123.170	A+PTR	cpe-72-128-123-170.wi.res.rr.com
72.128.123.187	A+PTR	cpe-72-128-123-187.wi.res.rr.com
72.128.124.191	A+PTR	cpe-72-128-124-191.wi.res.rr.com
72.128.124.191	A	intrik8.com
72.128.125.174	A	cpe-72-128-125-174.wi.res.rr.com
72.128.127.53	A+PTR	cpe-72-128-127-53.wi.res.rr.com