Robtex

Up: 216.163.56.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.163.60.0/23
Down right: 216.163.62.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.163.60.34	PTR	mail.modarinc.com
216.163.60.67	PTR	open
216.163.60.69	PTR	open
216.163.60.86	PTR	open
216.163.60.87	PTR	open
216.163.60.104	PTR	open
216.163.60.119	PTR	open
216.163.60.157	PTR	open
216.163.60.202	PTR	5300-sf-18.qtm.net
216.163.60.202	A	remote.dbiyes.com
216.163.61.63	PTR	open
216.163.61.84	PTR	open-tilemart.qtm.net
216.163.61.85	PTR	open-tilemart.qtm.net
216.163.61.86	PTR	open-tilemart.qtm.net
216.163.61.142	PTR	open
216.163.61.156	PTR	open
216.163.61.157	PTR	open
216.163.61.161	PTR	open
216.163.61.211	PTR	open
216.163.61.217	PTR	open
216.163.61.219	PTR	open
216.163.61.222	PTR	open
216.163.61.237	PTR	open
216.163.61.243	PTR	open
216.163.61.244	PTR	open
216.163.61.255	PTR	open
216.163.62.2	PTR	open
216.163.62.20	PTR	open
216.163.62.26	PTR	open
216.163.62.35	PTR	open
216.163.62.36	PTR	open
216.163.62.37	PTR	open
216.163.62.43	PTR	open
216.163.62.49	PTR	open
216.163.62.52	PTR	open
216.163.62.54	PTR	open
216.163.62.65	PTR	open
216.163.62.67	PTR	open
216.163.62.68	PTR	open
216.163.62.70	PTR	open
216.163.62.70	A	mail.idvcloud.net
216.163.62.71	PTR	open
216.163.62.72	PTR	open
216.163.62.73	PTR	open
216.163.62.73	A	vpn.idvsolutions.com
216.163.62.76	PTR	open
216.163.62.76	A	ns1.idvsolutions.com
216.163.62.80	PTR	open
216.163.62.81	PTR	open
216.163.62.83	PTR	open
216.163.62.84	PTR	open
216.163.62.95	PTR	open
216.163.62.96	PTR	open
216.163.62.100	PTR	open
216.163.62.104	PTR	open
216.163.62.105	PTR	open
216.163.62.106	PTR	open
216.163.62.106	A	idvcloud.com
216.163.62.106	A	sta12sp1302.visualfusion.com
216.163.62.112	PTR	open
216.163.62.114	PTR	open
216.163.62.117	PTR	open
216.163.62.120	PTR	open
216.163.62.122	PTR	open
216.163.62.123	PTR	open
216.163.62.123	A	mail.vfdemo.com
216.163.62.123	A	www.vfdemo.com
216.163.62.126	PTR	open
216.163.62.126	A	mail.askidv.com
216.163.62.126	A	askidv.com
216.163.62.160	PTR	open
216.163.62.196	PTR	open
216.163.62.202	PTR	open
216.163.62.213	PTR	open
216.163.62.251	PTR	tc-ek-27.qtm.net
216.163.62.252	PTR	tc-ek-28.qtm.net
216.163.62.255	PTR	lost-end.qtm.net
216.163.63.0	PTR	open
216.163.63.15	PTR	open
216.163.63.16	PTR	open
216.163.63.22	PTR	open
216.163.63.31	PTR	open
216.163.63.32	PTR	open
216.163.63.44	PTR	open
216.163.63.47	PTR	open
216.163.63.48	PTR	open
216.163.63.49	PTR	open
216.163.63.50	PTR	open
216.163.63.51	A+PTR	mail.manercpa.com
216.163.63.51	A	mail.manersolutions.com
216.163.63.51	A	mail.mcco-cpa.com
216.163.63.61	A	mymaner.com
216.163.63.63	PTR	open
216.163.63.64	PTR	open
216.163.63.67	PTR	open
216.163.63.79	PTR	open
216.163.63.80	PTR	open
216.163.63.84	PTR	open
216.163.63.93	PTR	open
216.163.63.95	PTR	open
216.163.63.96	PTR	open
216.163.63.111	PTR	open
216.163.63.112	PTR	open
216.163.63.116	PTR	open
216.163.63.119	PTR	open
216.163.63.127	PTR	open
216.163.63.143	PTR	open
216.163.63.148	PTR	open
216.163.63.157	PTR	open
216.163.63.159	PTR	open
216.163.63.160	PTR	open
216.163.63.162	A	mail.magazineline.com
216.163.63.162	A	mail.neamag.com
216.163.63.163	A+PTR	ns2.magazineline.com
216.163.63.170	PTR	acmnet.com
216.163.63.170	PTR	magazineline.com
216.163.63.170	PTR	meamagazineservice.com
216.163.63.180	A	www.corporateboard.com
216.163.63.180	A	corporateboard.com
216.163.63.185	A	smtp2.magazineline.com
216.163.63.186	PTR	open
216.163.63.187	PTR	open
216.163.63.204	PTR	open
216.163.63.222	PTR	open
216.163.63.223	PTR	open
216.163.63.224	PTR	open
216.163.63.241	PTR	open
216.163.63.245	PTR	open
216.163.63.255	PTR	open