Robtex

Up: 199.84.154.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 199.84.154.0/25
Down right: 199.84.154.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
199.84.154.65	PTR	vir.ca
199.84.154.65	PTR	montreal.com
199.84.154.65	PTR	vir.net
199.84.154.67	A+PTR	quatermass.vir.com
199.84.154.77	A+PTR	zotique.vir.com
199.84.154.81	PTR	montreal.com
199.84.154.81	A+PTR	w5.montreal.com
199.84.154.81	PTR	www.montreal.com
199.84.154.83	A	www.makaera.com