Robtex

Up: 66.155.12.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 66.155.12.0/24
Down right: 66.155.13.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.155.12.18	PTR
66.155.12.21	PTR
66.155.12.44	A	criteofakepixel.ads.revjet.com
66.155.12.45	A	criteofakepixel.ads.revjet.com
66.155.12.46	A	pix.revjet.com
66.155.12.47	A	pix.revjet.com
66.155.12.73	A+PTR	ns1.webamg.com
66.155.12.73	A	dmajet.net
66.155.12.73	A	ns1.gen3group.com
66.155.12.74	A	mrtb-va.lfstmedia.com
66.155.12.76	A	dmajet.com
66.155.12.76	A	*.hostmaster.ns4.ns4.dmajet.com
66.155.12.76	A	qzoid.com
66.155.12.79	A+PTR	ns3.webamg.com
66.155.12.79	A	ns3.gen3group.com
66.155.12.79	A	ns3.mycdn.us
66.155.12.153	A	ns12.criteofakepixel.ads.revjet.com
66.155.12.153	A	ns12.ns14.fyberrtb.lfstmedia.com
66.155.12.153	A	ns12.hostmaster.hostmaster.findurcrush.com
66.155.12.159	PTR	sva822.showserver.us
66.155.12.159	A	ip3141.showserver.us
66.155.12.161	A	mrtb-va.lfstmedia.com
66.155.12.210	PTR	sva828.showserver.us
66.155.12.210	A	igaps1.com
66.155.12.210	A	ip3188.showserver.us
66.155.12.212	PTR	sva830.showserver.us
66.155.12.212	A	ip3190.showserver.us
66.155.13.18	A	www.southernstamps.com
66.155.13.18	A	southernstamps.com
66.155.13.24	A	webamg.com
66.155.13.90	A	wrtb-va.lfstmedia.com
66.155.13.120	A	ns4.mycmdb.net
66.155.13.152	PTR
66.155.13.180	A	vaapplovinrtb.lfstmedia.com
66.155.13.180	A	vaadxrtb.lfstmedia.com
66.155.13.180	A	vafyberrtb.lfstmedia.com
66.155.13.190	A	vaapplovinrtb.lfstmedia.com
66.155.13.190	A	vaadxrtb.lfstmedia.com
66.155.13.252	A	ssl-013.imconline.net
66.155.13.252	A	imc-013.imconline.net
66.155.13.252	A	ssl-013.vianetworks.net