Robtex

Up: 66.35.58.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 66.35.58.0/25
Down right: 66.35.58.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.35.58.68	A	mail.locationinsight.com
66.35.58.70	A	www.altitudeplatform.com
66.35.58.70	A	manage.altitudeplatform.com
66.35.58.70	A	manage.altitude-arena.com
66.35.58.71	A	www.altitudedigital.com
66.35.58.71	A	altitudedigital.com
66.35.58.75	A	delivery1.altitude-arena.com
66.35.58.75	A	delivery.altitude-arena.com
66.35.58.76	A	delivery.altitude-arena.com
66.35.58.77	A	delivery.altitude-arena.com
66.35.58.77	A	delivery3.altitude-arena.com
66.35.58.77	A	mobile.altitudeplatform.com
66.35.58.78	A	event.altitude-arena.com
66.35.58.79	A	srv-event.mars.video
66.35.58.80	A	event.vidster.media
66.35.58.80	A	event.themediastreet.com
66.35.58.83	A	rtb.altitude-arena.com
66.35.58.86	A	ads.altitude-arena.com
66.35.58.86	A	cookie.altitude-arena.com
66.35.58.87	A	ads.altitude-arena.com
66.35.58.88	A	ads.altitude-arena.com
66.35.58.88	A	cookie.altitude-arena.com
66.35.58.103	A	www.column6.com
66.35.58.129	A+PTR	dv-ext-pol-inet-switch.plex.com
66.35.58.129	A	ash-ext-pol-inet-switch.plex.com
66.35.58.133	A	dv-pmcx-fw.plex.com
66.35.58.137	A+PTR	dv-ns.plex.com
66.35.58.140	A	dr.plexonline.com
66.35.58.141	A	status.plex.com
66.35.58.142	A	drstatic.plexonline.com
66.35.58.143	A	drftps.plexonline.com
66.35.58.145	A+PTR	ncsmtp.plex.com
66.35.58.146	A	nc-smtp1.plex.com
66.35.58.146	A	ncsmtp1.plex.com
66.35.58.147	A	nc-smtp2.plex.com
66.35.58.148	A+PTR	dr.plex.com
66.35.58.149	A	drmobile.plexonline.com
66.35.58.151	A	dredi.plexonline.com
66.35.58.152	A	drodbc.plexonline.com
66.35.58.153	A+PTR	drtest.plexonline.com
66.35.58.154	A	drtestapi.plexonline.com
66.35.58.155	A	dvvpn.plex.com
66.35.58.170	A	dv-outsider.plex.com
66.35.58.230	A+PTR	mail.rightstart.com
66.35.58.230	PTR	rsmail01.rightstart.com