Robtex

Up: 204.9.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 204.9.80.0/23
Down right: 204.9.82.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.9.80.1	PTR	1-ggc.ar1.mtl3.cogecodata.net
204.9.80.18	PTR	18-ggc.ar1.mtl3.cogecodata.net
204.9.80.106	PTR	106-80-9-204.static.cogecodata.net
204.9.80.154	PTR	154-80-9-204.static.cogecodata.net
204.9.80.154	A	webmail.ed.ca
204.9.80.154	A	luda-cloud.com
204.9.81.4	PTR	4-81-9-204.static.cogecodata.net
204.9.81.5	PTR	5-81-9-204.static.cogecodata.net
204.9.81.6	A	telematics.otodatanetwork.com
204.9.81.19	A+PTR	mail.affiliatedtrading.com
204.9.81.19	A	mail.budmark.com
204.9.81.19	A	mail.campea.com
204.9.81.22	PTR	22-81-9-204.static.cogecodata.net
204.9.81.22	A	mail.egnet.ca
204.9.81.39	PTR	39-81-9-204.static.cogecodata.net
204.9.81.39	A	reperageboomerang.com
204.9.81.39	A	www.boomerangtracking.com
204.9.81.70	PTR	70-81-9-204.static.cogecodata.net
204.9.81.70	A	www.tirelinkonline.ca
204.9.81.70	A	www.tirelandlangley.ca
204.9.81.72	PTR	72-81-9-204.static.cogecodata.net
204.9.81.72	A	dtstorage.ca
204.9.81.72	A	tirequote.ca
204.9.82.2	PTR	2-82-9-204.static.cogecodata.net
204.9.82.3	PTR	3-82-9-204.static.cogecodata.net
204.9.82.6	PTR	6-82-9-204.static.cogecodata.net
204.9.82.20	PTR	20-82-9-204.static.cogecodata.net
204.9.83.1	PTR	1-83-9-204.static.cogecodata.net
204.9.83.2	PTR	2-83-9-204.static.cogecodata.net
204.9.83.5	PTR	5-83-9-204.static.cogecodata.net
204.9.83.6	PTR	api.eflyermaker.com
204.9.83.6	PTR	campaign.eflyermaker.com
204.9.83.6	PTR	cdn.konversation.com
204.9.83.11	A	mailserver02.konversation.com
204.9.83.12	A	mailserver03.konversation.com
204.9.83.13	A+PTR	ns2.4kci.com
204.9.83.13	A+PTR	ns2.kinumok.com
204.9.83.13	A+PTR	ns2.konversation.com
204.9.83.19	A	caasrvclient.konversation.com
204.9.83.26	A	mta003.mail.konversation.com
204.9.83.35	A	jourdelaterre1.mail.konversation.com
204.9.83.39	A	sgf.mail.konversation.com
204.9.83.42	A	mail.infolettrebnc.ca
204.9.83.43	A	mail.newsletternbc.ca
204.9.83.43	A	mail3.communicationsbnc.ca
204.9.83.50	PTR	50-83-9-204.static.cogecodata.net
204.9.83.50	A	cms2.konversation.com
204.9.83.51	A	communicationscarolineneron.com
204.9.83.55	PTR	mta.eflyermaker.com
204.9.83.55	A	mta.communications-quartierdix30.com
204.9.83.55	A	mta.communications-southcentremall.com
204.9.83.58	A	general-tao.com
204.9.83.62	PTR	62-83-9-204.static.cogecodata.net
204.9.83.62	A	fidorendez-vous.ca
204.9.83.63	A+PTR	mta02.eflyermaker.com
204.9.83.64	A+PTR	mta03.eflyermaker.com
204.9.83.66	A	mta.eflyermailer.com
204.9.83.72	PTR	72-83-9-204.static.cogecodata.net
204.9.83.72	A	fido-rewards.ca
204.9.83.72	A	fido-recompenses.ca
204.9.83.77	PTR	77-83-9-204.static.cogecodata.net
204.9.83.77	A	nbccommunications.ca
204.9.83.78	PTR	78-83-9-204.static.cogecodata.net
204.9.83.78	A	communicationsbnc.ca
204.9.83.78	A	www.communicationsbnc.ca
204.9.83.80	PTR	80-83-9-204.static.cogecodata.net
204.9.83.80	A	app.konversation.com
204.9.83.82	PTR	82-83-9-204.static.cogecodata.net
204.9.83.82	A	cms.konversation.com
204.9.83.89	PTR	89-83-9-204.static.cogecodata.net
204.9.83.89	A	microsite.konversation.com
204.9.83.89	A	sibienchezsoi.konversation.com
204.9.83.90	A	t.communicationsbnc.ca
204.9.83.93	PTR	93-83-9-204.static.cogecodata.net
204.9.83.93	A	sopexacrm.com
204.9.83.93	A	sites.konversation.com
204.9.83.95	PTR	www.opportunik.com
204.9.83.95	PTR	opportunik.com
204.9.83.102	PTR	102-83-9-204.static.cogecodata.net
204.9.83.102	A	mta.bestmarketingsupport.com
204.9.83.103	A	mta.newsletter-investorintelligence.com
204.9.83.109	A+PTR	ns4.apiavia.com
204.9.83.110	A	mailserver01.konversation.com
204.9.83.112	PTR	112-83-9-204.static.cogecodata.net
204.9.83.112	A	mail.rapido.konversation.com
204.9.83.112	A	rapido.konversation.com
204.9.83.113	A	ssmail.konversation.com
204.9.83.255	PTR	255-83-9-204.static.cogecodata.net