Robtex

Up: 173.204.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 173.204.80.0/22
Down right: 173.204.84.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
173.204.80.4	A	ianscottmaguire.com
173.204.80.9	PTR	173.204.80.9.reverse.gogrid.com
173.204.80.11	PTR	173.204.80.11.reverse.gogrid.com
173.204.80.24	PTR	173.204.80.24.reverse.gogrid.com
173.204.80.26	PTR	173.204.80.26.reverse.gogrid.com
173.204.80.52	A	da-f.us
173.204.80.52	A	www.da-f.us
173.204.80.65	PTR	173.204.80.65.reverse.gogrid.com
173.204.80.75	PTR	173.204.80.75.reverse.gogrid.com
173.204.80.83	PTR	173.204.80.83.reverse.gogrid.com
173.204.80.89	PTR	173.204.80.89.reverse.gogrid.com
173.204.80.91	PTR	173.204.80.91.reverse.gogrid.com
173.204.80.96	PTR	173.204.80.96.reverse.gogrid.com
173.204.80.99	PTR	173.204.80.99.reverse.gogrid.com
173.204.80.105	PTR	173.204.80.105.reverse.gogrid.com
173.204.80.105	A	basenki.pipeno.com
173.204.80.105	A	pipeno.com
173.204.80.106	PTR	173.204.80.106.reverse.gogrid.com
173.204.80.107	PTR	173.204.80.107.reverse.gogrid.com
173.204.80.115	PTR	173.204.80.115.reverse.gogrid.com
173.204.80.128	PTR	173.204.80.128.reverse.gogrid.com
173.204.80.138	PTR	173.204.80.138.reverse.gogrid.com
173.204.80.147	PTR	173.204.80.147.reverse.gogrid.com
173.204.80.163	PTR	173.204.80.163.reverse.gogrid.com
173.204.80.171	PTR	173.204.80.171.reverse.gogrid.com
173.204.80.180	A	data-manager.nl
173.204.80.184	PTR	173.204.80.184.reverse.gogrid.com
173.204.80.185	A	lecturamatickets.com
173.204.80.187	PTR	173.204.80.187.reverse.gogrid.com
173.204.80.187	A	tarot-kaartleggen.be
173.204.80.187	A	mail.lecturama.be
173.204.80.198	A	localeyedeals.com
173.204.80.211	PTR	173.204.80.211.reverse.gogrid.com
173.204.80.227	PTR	173.204.80.227.reverse.gogrid.com
173.204.80.240	PTR	173.204.80.240.reverse.gogrid.com
173.204.80.241	PTR	173.204.80.241.reverse.gogrid.com
173.204.80.243	PTR	smtp.payport.us
173.204.80.251	PTR	173.204.80.251.reverse.gogrid.com
173.204.81.3	A	jumptank.com
173.204.82.21	PTR	173.204.82.21.reverse.gogrid.com
173.204.82.21	A	mail.chadandaubrey.com
173.204.82.21	A	www.chadandaubrey.com
173.204.82.25	PTR	sudo-networks.com
173.204.82.25	A	mail.sudo-networks.com
173.204.82.26	PTR	173.204.82.26.reverse.gogrid.com
173.204.82.26	A	sudo-networks.com
173.204.82.27	PTR	173.204.82.27.reverse.gogrid.com
173.204.82.27	A	domokuncrew.com
173.204.82.42	PTR	173.204.82.42.reverse.gogrid.com
173.204.82.226	A	iceq.biz
173.204.83.201	PTR	buylottousa.com
173.204.83.204	PTR	173.204.83.204.reverse.gogrid.com
173.204.83.227	A	collegiatewebsolutions.net
173.204.83.227	A	mail.collegiatewebsolutions.net
173.204.83.228	A+PTR	www.collegiatewebsolutions.com
173.204.83.228	A	happycollege.com
173.204.83.234	PTR	www.ryleemadison.com
173.204.83.234	A	ryleemadison.com
173.204.83.236	A+PTR	epworthforestchoirschool.org
173.204.83.238	A+PTR	backedwithlove.com
173.204.84.34	PTR	robotslab.com
173.204.84.34	PTR	eics.co.il
173.204.84.34	A	xn--7dbnlm6a.com
173.204.84.36	PTR	173.204.84.36.reverse.gogrid.com
173.204.84.38	PTR	173.204.84.38.reverse.gogrid.com
173.204.84.42	PTR	173.204.84.42.reverse.gogrid.com
173.204.84.42	A	roboticsventures.com
173.204.84.44	A	it-process-automation.com
173.204.84.100	A	www.webergrillrestaurant.com
173.204.84.100	A	webergrillrestaurant.net
173.204.84.103	A	webergrillrestaurant.com
173.204.84.104	PTR	173.204.84.104.reverse.gogrid.com
173.204.84.104	A	talkwgr.com
173.204.84.155	A+PTR	mail.firestreamww.com
173.204.84.155	A+PTR	dagobah.firestreamww.com
173.204.84.156	A	closemyorder.com
173.204.85.217	PTR	s422.pingdom.com
173.204.85.226	A	mail.spicyhorse.com
173.204.85.229	A	bhb.spicyhorse.com
173.204.86.82	A	allgrandcanyonlodging.com
173.204.86.82	A	allmammothlodging.com
173.204.86.82	A	allflagstafflodging.com
173.204.86.89	A	yellowstoneparklodging.net
173.204.86.89	A	allgrandtetonlodging.com
173.204.86.89	A	allyellowstonelodging.com
173.204.86.114	A	clonemysc.com
173.204.86.114	A	eventchainsystems.com
173.204.86.115	A	holoncorp.com
173.204.87.18	PTR	portal.heritableinnovationtrust.org
173.204.87.18	PTR	www.heritableinnovationtrust.org
173.204.87.18	A	*.m-cam.com
173.204.87.82	PTR	173.204.87.82.reverse.gogrid.com
173.204.87.82	A	giftgourmetbaskets.com
173.204.87.82	A	smtp.igourmet.com
173.204.87.87	PTR	www.igourmet.com
173.204.87.87	A	smtp.igourmet.com
173.204.87.87	A	sql.igourmet.com
173.204.87.116	PTR	supertucano.strema.com.br
173.204.87.117	PTR	skyhawk.strema.com.br