Robtex

Up: 216.66.240.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.66.244.0/23
Down right: 216.66.246.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.66.244.48	A	host-216-66-244-48.static.linkline.com
216.66.246.153	PTR	host-216-66-246-153.static.linkline.com
216.66.246.160	A+PTR	host-216-66-246-160.static.linkline.com
216.66.246.181	A	mail1.1st-comm.com
216.66.246.232	A+PTR	host-216-66-246-232.static.linkline.com
216.66.247.127	PTR	host-216-66-247-127.static.linkline.com
216.66.247.128	PTR	host-216-66-247-128.static.linkline.com
216.66.247.129	PTR	skyline2.linkusystems.net
216.66.247.129	A	xtremecleanauto.com
216.66.247.129	A	pahrumpbyowner.com
216.66.247.131	PTR	host-216-66-247-131.static.linkline.com
216.66.247.132	A+PTR	host-216-66-247-132.static.linkline.com
216.66.247.132	A	biogreenclean.com
216.66.247.133	A+PTR	host-216-66-247-133.static.linkline.com
216.66.247.134	PTR	host-216-66-247-134.static.linkline.com
216.66.247.134	A	www.myzipplumbers.com
216.66.247.136	PTR	host-216-66-247-136.static.linkline.com
216.66.247.136	A	mlsmyhome.com
216.66.247.136	A	www.mlsmyhome.com
216.66.247.137	PTR	host-216-66-247-137.static.linkline.com
216.66.247.137	A	listsmart.com
216.66.247.138	PTR	host-216-66-247-138.static.linkline.com
216.66.247.138	A	byownerflatmls.com
216.66.247.139	PTR	host-216-66-247-139.static.linkline.com
216.66.247.140	A	host-216-66-247-140.static.linkline.com
216.66.247.141	A+PTR	host-216-66-247-141.static.linkline.com
216.66.247.142	A+PTR	host-216-66-247-142.static.linkline.com
216.66.247.146	A+PTR	host-216-66-247-146.static.linkline.com
216.66.247.150	A+PTR	host-216-66-247-150.static.linkline.com
216.66.247.164	A+PTR	host-216-66-247-164.static.linkline.com
216.66.247.164	A	footballpoollive.com
216.66.247.164	A	idx.firstidx.com
216.66.247.165	PTR	host-216-66-247-165.static.linkline.com
216.66.247.165	A	firstidx.com
216.66.247.182	A+PTR	host-216-66-247-182.static.linkline.com
216.66.247.198	PTR	host-216-66-247-198.static.linkline.com
216.66.247.198	A	linkuwebmail.com
216.66.247.199	A	photos.linkurealty.com
216.66.247.202	PTR	charlie.linkusystems.net
216.66.247.202	A	fairytalewebdesigns.com
216.66.247.202	A	madeformusic.com
216.66.247.204	A+PTR	host-216-66-247-204.static.linkline.com
216.66.247.204	A	cats.room441.com
216.66.247.204	A	ns2.linkusystems.net
216.66.247.205	PTR	host-216-66-247-205.static.linkline.com
216.66.247.210	PTR	ns2.linkusystems.net
216.66.247.210	A	host-216-66-247-210.static.linkline.com
216.66.247.210	A	listingrobot.com
216.66.247.212	A+PTR	xterra.linkusystems.net
216.66.247.212	A	mail.firstidx.com
216.66.247.212	A	smtp2.linkusystems.net
216.66.247.215	PTR	host-216-66-247-215.static.linkline.com
216.66.247.216	A+PTR	host-216-66-247-216.static.linkline.com
216.66.247.216	A	linkurealty.com
216.66.247.216	A	www.linkurealty.com
216.66.247.220	A	mywebsitecontrolpanel.net
216.66.247.240	PTR	host-216-66-247-240.static.linkline.com
216.66.247.255	PTR	host-216-66-247-255.static.linkline.com