Robtex

Up: 199.216.120.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 199.216.121.0/25
Down right: 199.216.121.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
199.216.121.5	PTR	clearview.ab.ca
199.216.121.6	PTR	clearview.ab.ca
199.216.121.10	PTR	clearview.ab.ca
199.216.121.10	A	sos.clearview.ab.ca
199.216.121.10	A	ses.clearview.ab.ca
199.216.121.12	PTR	clearview.ab.ca
199.216.121.12	A	mail.clearview.ab.ca
199.216.121.13	PTR	clearview.ab.ca
199.216.121.16	PTR	clearview.ab.ca
199.216.121.28	PTR	clearview.ab.ca
199.216.121.40	PTR	clearview.ab.ca
199.216.121.42	PTR	clearview.ab.ca
199.216.121.46	PTR	clearview.ab.ca
199.216.121.72	PTR	clearview.ab.ca
199.216.121.125	PTR	clearview.ab.ca
199.216.121.129	PTR	clearview.ab.ca
199.216.121.130	PTR	clearview.ab.ca
199.216.121.134	PTR	clearview.ab.ca
199.216.121.136	PTR	clearview.ab.ca
199.216.121.137	PTR	clearview.ab.ca
199.216.121.140	PTR	clearview.ab.ca
199.216.121.165	PTR	clearview.ab.ca
199.216.121.170	PTR	clearview.ab.ca
199.216.121.179	PTR	clearview.ab.ca
199.216.121.186	PTR	clearview.ab.ca
199.216.121.188	PTR	clearview.ab.ca
199.216.121.192	PTR	clearview.ab.ca
199.216.121.193	PTR	clearview.ab.ca
199.216.121.194	PTR	clearview.ab.ca
199.216.121.205	PTR	clearview.ab.ca
199.216.121.207	PTR	clearview.ab.ca
199.216.121.210	PTR	clearview.ab.ca
199.216.121.215	PTR	clearview.ab.ca
199.216.121.217	PTR	clearview.ab.ca
199.216.121.250	PTR	clearview.ab.ca
199.216.121.253	PTR	clearview.ab.ca
199.216.121.255	PTR	clearview.ab.ca