Robtex

Up: 66.6.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 66.6.52.0/23
Down right: 66.6.54.0/23

IP	Type	Hostname
66.6.52.4	PTR	www.zip.ca
66.6.52.12	PTR	www2.rogersvideodirect.ca
66.6.52.64	A	www.rogersvideodirect.ca
66.6.53.2	PTR	www.pool.com
66.6.53.4	PTR	www2.pool.com
66.6.53.6	PTR	maintenance1.pool.com
66.6.53.7	A+PTR	maintenance2.pool.com
66.6.53.11	A+PTR	www.gdnx.org
66.6.53.12	A+PTR	www1.gdnx.org
66.6.53.13	A	www2.gdnx.org
66.6.53.14	PTR	registrars.pool.com
66.6.53.16	A	registrars2.pool.com
66.6.53.17	A	newsite.pool.com
66.6.53.20	A+PTR	www5.gdnx.org
66.6.53.21	A+PTR	www6.gdnx.org
66.6.53.128	A	ns1.pool.com
66.6.53.131	A	ns2.pool.com
66.6.54.3	A	www1.internic.ca
66.6.54.5	A	www3.internic.ca
66.6.54.10	A+PTR	mx1.internic.ca
66.6.54.11	A+PTR	newsletter.internic.ca
66.6.54.12	A+PTR	www.canadapost.internic.ca
66.6.54.12	A	canadapost.internic.ca
66.6.54.13	A	postescanada.internic.ca
66.6.54.50	A	registrant-aliases-smtp.internic.ca
66.6.54.51	A+PTR	registrant-aliases-smtp-1.internic.ca
66.6.54.52	A+PTR	registrant-aliases-smtp-2.internic.ca
66.6.54.128	A	ns1.internic.ca
66.6.54.131	A	ns2.internic.ca
66.6.55.2	A	footballfanatics.ca
66.6.55.3	PTR	rarweb2.momentous.ca
66.6.55.50	PTR	registrant-aliases-smtp.domainsatcost.ca
66.6.55.128	PTR	ns1.domainsatcost.ca
66.6.55.131	PTR	ns2.domainsatcost.ca