Robtex

Up: 12.183.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 12.183.16.0/23
Down right: 12.183.18.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
12.183.16.16	A+PTR	mail.wrgracemedia.net
12.183.16.17	A+PTR	wrgracemedia.net
12.183.16.17	A	www.previewedocumentview.com
12.183.16.17	A	edocumentview.com.au
12.183.16.21	A	cmcfunding.com
12.183.16.24	A	hylandslawsuit.com
12.183.16.24	A	alisocanyonlitigation.com
12.183.16.24	A	myespp-bestbuycanada.ca
12.183.16.34	A	gvuat-us.computershare.com
12.183.16.68	A	gilardisecure.com
12.183.16.69	A	gilardikcc.net
12.183.16.69	A	acerlawsuit.com
12.183.16.69	A	fbdsettlement.com
12.183.16.73	A	infantstylenolsettlement.com
12.183.16.73	A	ggbtollclassaction.com
12.183.16.73	A	awp-homedepottcpa.com
12.183.16.124	A	ofx-us.computershare.com
12.183.16.144	A	mail.wrgracemedia.net
12.183.16.145	A	wrgracemedia.net
12.183.16.149	A	hml.ie
12.183.16.149	A	computershare.dk
12.183.16.149	A	thekrogercostockexchange.com
12.183.16.162	A	cpubwuat.com
12.183.16.162	A	israelbondsdirect.net
12.183.16.162	A	computershare.com
12.183.16.166	A	www.issueronline.com
12.183.16.211	PTR	smtp11.cpucommunications.com
12.183.16.244	A	ns4.computershare.com
12.183.17.25	A	mail.visicu.com
12.183.17.25	A	mail.eicuresearch.com
12.183.17.50	A	extranet.visicu.com
12.183.18.130	A	ns2.jos-a-bank.net
12.183.18.130	A	ns2.jos-a-bank.com
12.183.19.4	A	ns1.bccexpo.com
12.183.19.5	A	ns2.bccexpo.com
12.183.19.9	A	bccexpo.com
12.183.19.9	A	appsrvr.bccexpo.com
12.183.19.14	A	mail.bccenter.org
12.183.19.25	A	host-12-183-19-25.bccexpo.com
12.183.19.85	A	host-12-183-19-85.bccexpo.com