Robtex

Up: 216.133.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 216.133.192.0/20
Down right: 216.133.208.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.133.194.10	PTR	cbdmp.org
216.133.194.67	A+PTR	mail.signalhealthsolutions.com
216.133.194.67	A	mail.ahcipa.com
216.133.194.99	A	gw.thorsoninsurance.com
216.133.194.101	A	mail.thorsoninsurance.com
216.133.194.195	PTR	mail.pathmdlabs.com
216.133.194.195	A	mail.blufrogpath.com
216.133.195.155	PTR	mail.vcesvolvo.com
216.133.195.156	PTR	mail2.vcesvolvo.com
216.133.196.51	A	mail.hafiflaw.com
216.133.196.201	A	*.ggwarehouse.com
216.133.196.201	A	ggwarehouse.com
216.133.196.227	A	mp-mail-01.shipsmart.com
216.133.197.19	PTR	mailgw.mosaic.org
216.133.197.71	A	lareveconsultants.com
216.133.198.100	A+PTR	mail.foxrex.com
216.133.198.100	A	mail.njmooney.com
216.133.198.100	A	mail.lodestarworld.com
216.133.199.51	A	mail.nscap.org
216.133.200.2	PTR	ns0.netbasix.net
216.133.200.11	A	zxy-usa.com
216.133.200.19	A	atl216-19.netbasix.net
216.133.200.21	A	mail0.ncfast.net
216.133.200.21	A	atl216-21.netbasix.net
216.133.201.170	PTR	verney.net
216.133.201.171	PTR	octos.us
216.133.201.171	A	ns1.rctradio.com.br
216.133.201.171	A	ns1.octosonline.com
216.133.201.172	PTR	octosonline.com
216.133.204.133	A	mail.wscpa.net
216.133.204.135	PTR	wscpa.org
216.133.205.100	PTR	ns1.1s.com
216.133.205.254	PTR	telecrafter.com
216.133.208.63	PTR	h-216-133-208-63.no.clli.megapath.net
216.133.208.139	PTR	h-216-133-208-139.no.clli.megapath.net
216.133.208.194	PTR	h-216-133-208-194.no.clli.megapath.net
216.133.208.198	PTR	h-216-133-208-198.no.clli.megapath.net
216.133.210.162	PTR	mail.garaventaenterprises.com
216.133.210.162	A	mail.garaventaenterprises.net
216.133.210.162	A	mail.pittsburgdisposal.com
216.133.210.165	PTR	smgfoundation.org
216.133.218.50	A	exchange.crk-eng.com
216.133.219.106	A	mail.clinneuro.com
216.133.223.146	A+PTR	mail.cjfhc.org
216.133.223.146	A	mail.cnjmchc.org
216.133.223.146	A	mail2.cjfhc.org
216.133.223.149	A+PTR	secmail.cjfhc.org