Robtex

Up: 66.6.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 66.6.48.0/23
Down right: 66.6.50.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.6.49.11	PTR	mx1.privacy.ca
66.6.49.13	A+PTR	worker.privacy.ca
66.6.49.19	A	www1.privacy.ca
66.6.49.20	A	www2.privacy.ca
66.6.49.24	PTR	www.cvo.ca
66.6.49.77	A	mail.rebel.com
66.6.49.120	A	mail.forsyte.info
66.6.49.170	A	ns1.forsyte.info
66.6.49.177	PTR	ns1.inetbank.ca
66.6.49.178	A	ns1.cadirectory.ca
66.6.49.179	PTR	nameserver1.momentous.ca
66.6.49.179	A	dns.ottawa.net
66.6.49.186	A+PTR	dns.cvo.ca
66.6.49.186	A	dns3.cvo.ca
66.6.49.188	A	dns3.hostmaster.ca
66.6.49.188	A	dns.hostmaster.ca
66.6.49.190	A	dns.domains.ca
66.6.49.191	PTR	dns.echelon.ca
66.6.49.193	PTR	ns1.cirawatch.com
66.6.49.194	PTR	ns2.inetbank.ca
66.6.49.200	PTR	ns2.momentous.ca
66.6.50.135	A	dns7.namescout.com
66.6.50.136	A	dns8.namescout.com
66.6.50.140	A	mx3.internic.ca
66.6.50.140	A	mx3.namescout.com
66.6.51.1	A	gateway.phone.momentous.ca
66.6.51.8	A	switch2.phone.momentous.ca
66.6.51.16	A	vpshostingatcost.com
66.6.51.19	A	vpshostingatcost.com
66.6.51.22	A	myssed.com
66.6.51.78	A	mediaball.ca
66.6.51.80	A	mail.h77.ca
66.6.51.81	A	h77.ca
66.6.51.123	A	faeyc-adfje.org
66.6.51.123	A	faeyc-adfje.com
66.6.51.123	A	faeyc.ca
66.6.51.183	A	sep00112032c31a.phone.momentous.ca