Robtex

Up: 216.105.192.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 216.105.192.0/21
Down right: 216.105.200.0/21

IP	Type	Hostname
216.105.192.4	A	auth1.avhnh.org
216.105.192.5	A	auth2.avhnh.org
216.105.192.10	A	mx1.avhnh.org
216.105.192.11	A	mx2.avhnh.org
216.105.192.21	A	visionshare.avhnh.org
216.105.200.16	PTR	ge-0-0-6-3008.sec01.ela.avhnh.org
216.105.200.65	PTR	lo0.gw.wmc.avhnh.org
216.105.200.137	A	ge-0-0-4-0.sec02.avh.avhnh.org
216.105.200.153	A	ge-0-0-8-96.sec02.avh.avhnh.org
216.105.206.10	A	nevadanative.net
216.105.206.23	PTR	dyn-216-105-206-23.ucv.avhnh.org
216.105.206.34	PTR	laboth01.bwl.avhnh.org
216.105.206.52	PTR	aspmpr02.srg.avhnh.org
216.105.206.82	PTR	l.cli.weeks.wmc.avhnh.org
216.105.206.100	PTR	rhabtc02.rrh.avhnh.org