Robtex

Up: 209.161.248.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 209.161.248.0/23
Down right: 209.161.250.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
209.161.248.130	PTR	vacdev.com
209.161.248.138	A	ns2.chirsfoundation.com
209.161.248.138	A	ns2.torontoabirehabspecialists.com
209.161.248.138	A	ns2.chirsclub.com
209.161.248.140	PTR	ns1.chirs.com
209.161.248.140	A	torontoabirehabspecialists.com
209.161.248.140	A	ns1.chirsclub.com
209.161.248.141	PTR	ns2.chirs.com
209.161.248.145	A	smtp.durefoods.com
209.161.248.211	PTR	expra.com
209.161.249.74	PTR	itr.ca
209.161.249.116	A	mail.throne.ca
209.161.249.123	PTR	throne.com
209.161.249.123	A	mail.throne.com
209.161.249.187	PTR	mail.deosound.com
209.161.250.26	A+PTR	mail10.aipco.com
209.161.250.36	PTR	torinodrywall.ca
209.161.250.97	PTR	ns3.kappa-tech.com
209.161.250.97	A	ns1.kappatechnology.com
209.161.250.97	A	mail.kappa-tech.com
209.161.250.102	A	ns2.kappa-tech.com
209.161.250.102	A	ns2.kappatechnology.com
209.161.250.102	A	mail2.kappa-tech.com
209.161.250.186	A	mail1.bettermail.ca
209.161.250.241	PTR	chuck.rampart.ca
209.161.251.22	A	server.fairlanegroup.com
209.161.251.42	PTR	globexmessenger.com
209.161.251.146	PTR	mmail.ca
209.161.251.146	A	mail.mmail.ca
209.161.251.146	A	office.mmail.ca
209.161.251.147	A	ns2.thronecomputer.com
209.161.251.153	PTR	tma-1.brad-x.com
209.161.251.209	PTR	fercan.ca
209.161.251.228	PTR	mail.kpss-hair.ca
209.161.251.250	PTR	dns2.logos.qc.ca
209.161.251.251	PTR	mail.logos.qc.ca
209.161.251.252	PTR	logos.qc.ca
209.161.251.253	PTR	therapeutic-music.com