Robtex

Up: 206.72.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 206.72.80.0/22
Down right: 206.72.84.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
206.72.80.5	A	toolkit.winmedic.com
206.72.80.6	PTR	ns2.winmedic.com
206.72.80.6	A	ns3.winmedic.com
206.72.80.10	A	mailout.winmedic.com
206.72.80.10	A	mail.winmedic.com
206.72.80.11	A	mail.toybill.com
206.72.80.11	A	mail.applelanesolvang.com
206.72.80.15	PTR	vmaster2-lights-out-winmedic
206.72.80.18	PTR	18.syvtelcom.com
206.72.80.18	A	ftp.eisaguirre.com
206.72.80.28	PTR	80-28.syvtelcom.com
206.72.80.50	PTR	80-50.syvtelcom.com
206.72.80.55	PTR	80-50.syvtelcom.com
206.72.80.59	PTR	exmail.cunninghamparris.com
206.72.80.82	A	vmaster.winmedic.com
206.72.80.87	A	mariahoke.com
206.72.80.87	A	fallgatterfarm.com
206.72.80.87	A	packin-in.com
206.72.80.101	A	crownpoint.syvtelcom.com
206.72.80.101	A	aj.syvtelcom.com
206.72.80.101	A	midland.syvtelcom.com
206.72.80.130	PTR	130.syvtelcom.com
206.72.80.132	PTR	132.syvtelcom.com
206.72.80.135	PTR	135.syvtelcom.com
206.72.80.136	PTR	136.syvtelcom.com
206.72.80.156	PTR	156.syvtelcom.com
206.72.80.157	PTR	157.syvtelcom.com
206.72.80.182	PTR	182.syvtelcom.com
206.72.80.185	PTR	185.syvtelcom.com
206.72.82.47	A	bostertag.com
206.72.83.198	A	intradns.dock.net
206.72.83.208	A	vsw-16.lax.aerioconnect.net
206.72.84.25	PTR	upstream.dosmage.net
206.72.84.113	PTR	ns3.dosmage.net
206.72.84.114	PTR	mail.dosmage.net
206.72.84.134	A	ns1.danielrabinowitz.com
206.72.84.134	A	ns2.danielrabinowitz.com
206.72.84.194	PTR	mailzilla.com
206.72.84.194	A	mailzilla.net
206.72.84.194	A	nonpoint.mailzilla.net
206.72.85.10	PTR	206-72-85-10.mxu.aerioconnect.net
206.72.85.10	A	crm.aerioconnect.net
206.72.86.115	A	admin.dock.net
206.72.86.150	A	206-72-86-150.mxu.aerioconnect.net
206.72.86.152	PTR	206-72-86-152.mxu.aerioconnect.net
206.72.87.244	PTR	spweather.net
206.72.87.248	PTR	spweather.net
206.72.87.249	PTR	spweather.net
206.72.87.250	PTR	spweather.net
206.72.87.251	PTR	spweather.net