Robtex

Up: 8.17.32.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 8.17.32.0/25
Down right: 8.17.32.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
8.17.32.12	A	sip.digiumcloud.net
8.17.32.19	PTR	sip01.voice.life.edu
8.17.32.20	PTR	blackboard.life.edu
8.17.32.38	PTR	www.digiumcloud.net
8.17.32.38	A	bryanmjohns.com
8.17.32.38	A	sipcapture01.vocalcloud.net
8.17.32.39	A	mail.investorhomedeals.com
8.17.32.40	A	mail.sands-it.com
8.17.32.40	A	mail.mynextchallenge.us
8.17.32.40	A	mail.staggandsheila.com
8.17.32.41	A+PTR	ns1.digiumcloud.net
8.17.32.41	A	ns1.vocalcloud.com
8.17.32.41	A	ns1.vocalcloud.net
8.17.32.42	A+PTR	ns2.digiumcloud.net
8.17.32.42	A	ns2.vocalcloud.com
8.17.32.42	A	ns2.vocalcloud.net
8.17.32.44	PTR	support.vocalcloud.com
8.17.32.44	PTR	vcloud-web-kvm-01-20137-1033-atl.3p.sjtg.net
8.17.32.47	PTR	scan-atl-1033-20137.3p.sjtg.net
8.17.32.47	A	scan.acmlaw.net
8.17.32.49	A	comm.sjtg.net
8.17.32.55	PTR	3padmin.3p.sjtg.net
8.17.32.56	A+PTR	monitor.digiumcloud.net
8.17.32.56	A	monitor2.sjtg.net
8.17.32.59	A	sipcapture.digiumcloud.net
8.17.32.60	A+PTR	blackhole.digiumcloud.net
8.17.32.61	A	fax.vocalcloud.com
8.17.32.72	A+PTR	zixgateway02.ipquest.net
8.17.32.115	PTR	sandsit.staggandsheila.com
8.17.32.115	A	mynextchallenge.us
8.17.32.115	A	staggandsheila.com
8.17.32.195	PTR	smtp.life.edu
8.17.32.196	A	business.life.edu
8.17.32.210	PTR	bb8test.life.edu
8.17.32.213	A	lsaventures.net
8.17.32.213	A	lsaventures.org
8.17.32.227	PTR	alexb.cust.sheltonjohns.com
8.17.32.242	PTR	mail.bargercowartkenney.com
8.17.32.242	A+PTR	mail.integratedbankingsolutions.com