Robtex

Up: 216.208.232.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.208.236.0/23
Down right: 216.208.238.0/23

IP	Type	Hostname
216.208.236.6	A+PTR	montreal-216-208-236-6.dial.bell.ca
216.208.236.142	A+PTR	montreal-216-208-236-142.dial.bell.ca
216.208.236.197	A+PTR	montreal-216-208-236-197.dial.bell.ca
216.208.236.205	A+PTR	montreal-216-208-236-205.dial.bell.ca
216.208.236.216	A+PTR	montreal-216-208-236-216.dial.bell.ca