Robtex

Up: 72.50.88.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 72.50.92.0/23
Down right: 72.50.94.0/23

IP	Type	Hostname
72.50.92.11	A	adsl-72-50-92-11.prtc.net
72.50.92.57	A	adsl-72-50-92-57.prtc.net
72.50.92.109	A	adsl-72-50-92-109.prtc.net
72.50.92.153	A	adsl-72-50-92-153.prtc.net
72.50.92.160	A	adsl-72-50-92-160.prtc.net
72.50.92.177	A	adsl-72-50-92-177.prtc.net
72.50.92.198	A	adsl-72-50-92-198.prtc.net
72.50.92.206	A+PTR	adsl-72-50-92-206.prtc.net
72.50.92.225	A+PTR	adsl-72-50-92-225.prtc.net
72.50.93.121	A+PTR	adsl-72-50-93-121.prtc.net
72.50.93.141	A+PTR	adsl-72-50-93-141.prtc.net
72.50.93.217	A+PTR	adsl-72-50-93-217.prtc.net
72.50.94.73	A	adsl-72-50-94-73.prtc.net
72.50.94.210	A+PTR	adsl-72-50-94-210.prtc.net
72.50.94.244	A	adsl-72-50-94-244.prtc.net
72.50.95.60	A+PTR	adsl-72-50-95-60.prtc.net
72.50.95.100	A+PTR	adsl-72-50-95-100.prtc.net
72.50.95.251	A	adsl-72-50-95-251.prtc.net