Robtex

Up: 209.135.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 209.135.64.0/20
Down right: 209.135.80.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
209.135.66.4	PTR	static-209-135-66-4.gtcust.grouptelecom.net
209.135.66.131	PTR	static-209-135-66-131.gtcust.grouptelecom.net
209.135.66.161	PTR	static-209-135-66-161.gtcust.grouptelecom.net
209.135.66.227	PTR	static-209-135-66-227.gtcust.grouptelecom.net
209.135.73.178	A	mail.searchmall.ca
209.135.76.2	PTR	gateway.halex.com
209.135.76.3	PTR	ns.tech-city.com
209.135.76.11	A	mail.miamiinsuranceagents.com
209.135.76.11	A	mail.u-viewrealty.com
209.135.76.11	A	mail.highlineauto.net
209.135.76.39	A	*.barnetthome.com
209.135.76.39	A	valentine.barnetthome.com
209.135.76.39	A	barnetthome.com
209.135.76.77	A	lubelsky.com
209.135.76.121	A	appraisaltn.com
209.135.76.121	A	statelineappraisal.com
209.135.76.121	A	u-viewrealty.com
209.135.76.184	A	static-209-135-76-184.gtcust.grouptelecom.net
209.135.77.214	A	smtp.derivion.com
209.135.78.56	A	host-209-135-78-56.dyn.295.ca
209.135.82.37	PTR	smtp.edatingsolution-guide.com
209.135.82.70	PTR	smtp.thatcherprescott-online.com
209.135.82.71	PTR	smtp.thatcherprescott-online.com
209.135.82.101	PTR	smtp.surveyexplosion-guide.com
209.135.82.103	PTR	smtp.surveyexplosion-guide.com
209.135.82.226	PTR	ct.surveymountain-star.com
209.135.82.229	PTR	smtp.surveymountain-star.com
209.135.82.230	PTR	smtp.surveymountain-star.com
209.135.82.231	PTR	smtp.surveymountain-star.com
209.135.88.13	A	amelin.ca
209.135.90.17	A	ns1.nobelmed.com
209.135.90.18	A	ns2.nobelmed.com