Robtex

Up: 68.67.208.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 68.67.212.0/23
Down right: 68.67.214.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
68.67.212.10	PTR	h-68-67-212-10.isncom.net
68.67.212.21	A	mail2.informedfamilies.org
68.67.212.21	A	mail.informedfamilies.org
68.67.212.43	PTR	worldimension.com
68.67.212.44	A	mail.myexclusivejourneys.com
68.67.212.44	A	myexclusivejourneys.com
68.67.212.92	A+PTR	mail.i-port-s.com
68.67.212.92	A	ns3.infreserve.net
68.67.212.92	A	i-port-s.com
68.67.212.98	PTR	h-68-67-212-98.isncom.net
68.67.212.139	PTR	h-68-67-212-139.isncom.net
68.67.212.154	PTR	h-68-67-212-154.isncom.net
68.67.212.170	PTR	h-68-67-212-170.isncom.net
68.67.212.171	PTR	h-68-67-212-171.isncom.net
68.67.212.182	PTR	h-68-67-212-182.isncom.net
68.67.212.182	A	borikenfamily.com
68.67.212.186	PTR	h-68-67-212-186.isncom.net
68.67.212.187	PTR	h-68-67-212-187.isncom.net
68.67.212.190	A+PTR	remote.kpattorney.com
68.67.212.190	A	mail.kpattorney.com
68.67.212.195	PTR	h-68-67-212-195.isncom.net
68.67.212.195	A	mail.amsdiabetic.com
68.67.212.202	PTR	h-68-67-212-202.isncom.net
68.67.212.242	PTR	h-68-67-212-242.isncom.net
68.67.212.250	PTR	h-68-67-212-250.isncom.net
68.67.213.4	A	mail.astorcompanies.com
68.67.213.34	PTR	mail.puga.com
68.67.213.103	A	mail.amerikooler.com
68.67.213.130	PTR	h-68-67-213-130.isncom.net
68.67.213.162	PTR	h-68-67-213-162.isncom.net
68.67.213.165	PTR	h-68-67-213-165.isncom.net
68.67.213.168	A	mail.interlinearc.com
68.67.213.170	PTR	h-68-67-213-170.isncom.net
68.67.213.196	PTR	mail.fifteengroup.com
68.67.214.10	A+PTR	mailhost.documentmall.com
68.67.214.63	PTR	h-68-67-214-63.isncom.net
68.67.214.211	PTR	h-68-67-214-211.isncom.net
68.67.215.34	PTR	h-68-67-215-34.isncom.net
68.67.215.36	PTR	mail.lydeckerdiaz.com
68.67.215.36	A	lydecker.no-ip.info
68.67.215.83	PTR	h-68-67-215-83.isncom.net
68.67.215.98	PTR	h-68-67-215-98.isncom.net
68.67.215.114	PTR	h-68-67-215-114.isncom.net
68.67.215.134	PTR	h-68-67-215-134.isncom.net
68.67.215.134	A	cclresult.com
68.67.215.137	PTR	h-68-67-215-137.isncom.net
68.67.215.137	A	cdlaboratory.com
68.67.215.146	PTR	h-68-67-215-146.isncom.net
68.67.215.162	PTR	h-68-67-215-162.isncom.net
68.67.215.163	PTR	h-68-67-215-163.isncom.net
68.67.215.164	PTR	h-68-67-215-164.isncom.net
68.67.215.174	PTR	h-68-67-215-174.isncom.net
68.67.215.195	A+PTR	mail.maufl.edu
68.67.215.226	PTR	h-68-67-215-226.isncom.net
68.67.215.227	PTR	h-68-67-215-227.isncom.net
68.67.215.231	PTR	h-68-67-215-231.isncom.net