Robtex

Up: 204.235.96.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 204.235.100.0/23
Down right: 204.235.102.0/23

IP	Type	Hostname
204.235.101.0	A+PTR	bocaradiology-network.host.net
204.235.101.5	A+PTR	bocaradiology-h4.host.net
204.235.101.8	A	bocaradiology-h7.host.net
204.235.101.13	A	bocaradiology-h12.host.net
204.235.101.15	A	bocaradiology-broadcast.host.net
204.235.103.126	A+PTR	omiweston-s-1-t1-gw.host.net