Robtex

Up: 216.52.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.52.36.0/23
Down right: 216.52.38.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.52.36.0	PTR	ns1648.ztomy.com
216.52.37.153	A	wiley.cliksonline.com
216.52.37.208	A	practiceplus.in
216.52.37.208	A	practiceplus.info
216.52.37.209	A	www.niitnguru.com
216.52.38.24	A	www.primedia.com
216.52.38.24	A	primedia.com
216.52.38.25	A	www.primewire.com
216.52.38.29	A	saleshub.primedia.com
216.52.38.32	A	shop.rentals.com
216.52.38.35	A	homes.primediapayportal.com
216.52.38.36	A	my.apartmentguide.com
216.52.38.37	A	my.rentals.com
216.52.38.43	A	reports.primedia.com
216.52.38.56	A+PTR	mail2.hpci.com
216.52.38.58	A	images.leadmail.rentpath.com
216.52.38.77	A	ns2.apartmentguide.com
216.52.38.77	A	mail4.apartmentguide.com
216.52.38.77	A	dnsadmin.apartmentguide.com
216.52.38.80	A	rentpathcdn.com
216.52.38.81	A	m.apartmentguide.com
216.52.38.82	A	rental.com
216.52.38.82	A	www.rental.com
216.52.38.85	A	miami-homefinder.com
216.52.38.85	A	homebuyingtools.com
216.52.38.85	A	westpalmbeachnewhomes.com
216.52.38.96	A	atl.wh.consumersource.com
216.52.38.96	A	wh.consumersource.com
216.52.38.96	A	wh.prod.rentpathcdn.com
216.52.38.103	A	blog.rentals.com
216.52.38.105	A	atl.identity.rentpathservices.com
216.52.38.112	A	deervalleyvillageapartments.com
216.52.38.112	A	myhometheorleans.com
216.52.38.112	A	onejeffersonparkway.com
216.52.38.116	A	www.gatewaynv.com
216.52.38.116	A	thedakotaatcamelback.com
216.52.38.116	A	presidioaustin.com
216.52.38.137	A	ns1.primedia.com
216.52.38.138	A	ns2.primedia.com
216.52.38.140	A	maxleases.com
216.52.38.140	A	www.maxleases.com
216.52.38.140	A	mail.maxleases.com
216.52.38.166	A	viz.rentpath.com
216.52.38.240	A	atl.rent.com
216.52.38.240	A	www-rent.prmcdn.com
216.52.38.244	A	electronicgraphicsgroup.com
216.52.39.30	A	apieast.mashery.com
216.52.39.31	A	proxy-atl.mashery.com
216.52.39.31	A	premium-east.mashery.com
216.52.39.31	A	api.walmart.com
216.52.39.32	A	tm-bbyremix.mashery.com
216.52.39.32	A	sb-bbyremix-atl.mashery.com
216.52.39.160	A	sb-staging-macys-east.mashery.com
216.52.39.178	A	sb-macys.mashery.com
216.52.39.182	A	tms.api.mashery.com
216.52.39.182	A	sb-tms.mashery.com
216.52.39.198	A	api.nytimes.com
216.52.39.198	A	nytimes.api.mashery.com
216.52.39.198	A	sb-nytimes.mashery.com