Robtex

Up: 216.185.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.185.84.0/23
Down right: 216.185.86.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.185.84.2	PTR	host2.unused.fibrewired.on.ca
216.185.84.2	A	mail.ableliving.org
216.185.84.2	A	mail.capabilitysupport.ca
216.185.84.10	A	mail.questchc.ca
216.185.84.11	PTR	host11.unused.fibrewired.on.ca
216.185.84.11	A	mail.centralchc.com
216.185.84.12	A	mail.nfchc.ca
216.185.84.14	A	mail.wachc.ca
216.185.84.20	A	mx.paddockfax.com
216.185.84.32	PTR	host32.unused.fibrewired.on.ca
216.185.84.34	A+PTR	mail.binatech.com
216.185.84.54	PTR	host54.unused.fibrewired.on.ca
216.185.84.54	A	mail.oscarmcmaster.org
216.185.84.84	A	harrismdm.harrisrebar.com
216.185.84.94	A	ns3.mtexmedia.com
216.185.84.102	A	gtfex.gtfrenchpaper.com
216.185.84.114	A+PTR	remote.hydromantis-software.com
216.185.84.114	A	office.hydromantis.com
216.185.84.162	A	mail.bbsrealty.com
216.185.84.162	A	portal.wilsonblanchard.com
216.185.84.162	A	mx.wilsonblanchard.com
216.185.84.178	A	mx1.isisdigital.com
216.185.84.180	A	ftp.isisdigital.com
216.185.84.190	A	mx1.oakincentivesgroup.com
216.185.84.191	PTR	host191.unused.fibrewired.on.ca
216.185.84.218	PTR	host218.unused.fibrewired.on.ca
216.185.84.218	A	mail.bluecypressgroup.ca
216.185.85.2	A	tripar1.tripartrans.com
216.185.85.14	PTR	host14.fibrewired.on.ca
216.185.85.18	A+PTR	mail.mana-barmill.com
216.185.85.34	A	mail.sleep-clinic.ca
216.185.85.50	A	sleep-clinic-survey.ca
216.185.85.57	A+PTR	mail.audcomp.com
216.185.85.57	A	gate.audcomp.ca
216.185.85.57	A	mail.audcomp.ca
216.185.85.58	PTR	host58.fibrewired.on.ca
216.185.85.59	PTR	host59.fibrewired.on.ca
216.185.85.60	PTR	host60.fibrewired.on.ca
216.185.85.61	PTR	host61.fibrewired.on.ca
216.185.85.62	PTR	host62.fibrewired.on.ca
216.185.85.62	A	audcomp.ca
216.185.85.62	A	audcomp.com
216.185.85.67	PTR	host67.fibrewired.on.ca
216.185.85.69	PTR	host69.fibrewired.on.ca
216.185.85.69	A	ns2.nalgslb.com
216.185.85.70	PTR	host70.fibrewired.on.ca
216.185.85.70	A	bod.nalgslb.com
216.185.85.70	A	bod.newalta.com
216.185.85.71	PTR	host71.fibrewired.on.ca
216.185.85.115	PTR	host115.fibrewired.on.ca
216.185.85.115	A	ip3.yd.com
216.185.85.116	PTR	host116.fibrewired.on.ca
216.185.85.116	A	jeunesconducteurs.com
216.185.85.116	A	ip1.yd.com
216.185.85.118	PTR	host118.fibrewired.on.ca
216.185.85.119	PTR	primail.yd.com
216.185.85.120	PTR	host120.fibrewired.on.ca
216.185.85.120	A	youngdriversofnorthamerica.com
216.185.85.120	A	ydnorthamerica.com
216.185.85.121	PTR	host121.fibrewired.on.ca
216.185.85.121	A	ydtoronto.com
216.185.85.140	PTR	smtp140.cb-sender.com
216.185.85.140	A	zenon.com
216.185.85.191	PTR	host191.fibrewired.on.ca
216.185.85.194	PTR	host194.fibrewired.on.ca
216.185.85.204	PTR	host204.fibrewired.on.ca
216.185.85.204	A	phonebase.ca
216.185.85.251	PTR	host251.fibrewired.on.ca
216.185.85.251	A	kmspeel.com
216.185.86.26	PTR	mail.dapc.com
216.185.86.94	A+PTR	mail.highlandpackers.com
216.185.86.94	A	highlandpackers.com
216.185.86.94	A	highlandcountrymarkets.com
216.185.86.117	PTR	host117.columbiacollege.fibrewired.on.ca
216.185.86.121	PTR	mail.kaplanpsychologists.com
216.185.86.130	A+PTR	mail.shlaw.ca
216.185.86.130	A	mail.scarfonehawkinsllp.com
216.185.86.226	PTR	host226.police.fibrewired.on.ca
216.185.86.238	A	mail.mindsplore.com
216.185.87.62	PTR	host62.fibrewired.on.ca
216.185.87.62	A	smtp.lakeportbrewing.ca
216.185.87.62	A	mail.lakeportbrewing.net
216.185.87.64	PTR	ham-aaa-fluidmedia-vlan135.fibrewired.on.ca
216.185.87.67	A+PTR	test.fibrewired.com
216.185.87.67	A	hammertowncoderdojo.org
216.185.87.67	A	fibrewired.com
216.185.87.86	PTR	fluidmedia-ham-aaa-unused86.fibrewired.on.ca
216.185.87.88	PTR	fluidmedia-ham-aaa-unused88.fibrewired.on.ca
216.185.87.88	A	aetnamedicaremagic.com
216.185.87.88	A	aetnamagicat50.com
216.185.87.98	A	console.pioneer.ca
216.185.87.194	PTR	host194.fibrewired.on.ca
216.185.87.206	PTR	tenstar.ca
216.185.87.234	A	mail.lazierhickey.com
216.185.87.242	PTR	morrislaw-ham-aaa-unused242.fibrewired.on.ca
216.185.87.242	A	mail.morrislawyers.com
216.185.87.242	A	mail.abconsultants.ca
216.185.87.250	PTR	medtelsoftware-ham-aab-unused250.fibrewired.on.ca
216.185.87.250	A	adjuvantinformatics.com
216.185.87.250	A	med-messenger.com
216.185.87.254	A	mail.apcfilters.com