Robtex

Up: 72.35.96.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 72.35.96.0/23
Down right: 72.35.98.0/23

IP	Type	Hostname
72.35.96.0	A+PTR	0-96-35-72.mtaonline.net
72.35.96.42	PTR	42-96-35-72.mtaonline.net
72.35.96.61	A	qfam.org
72.35.96.65	A	65-96-35-72.mtaonline.net
72.35.96.89	A	89-96-35-72.mtaonline.net
72.35.96.116	A+PTR	116-96-35-72.mtaonline.net
72.35.96.136	A+PTR	136-96-35-72.mtaonline.net
72.35.97.0	A+PTR	0-97-35-72.mtaonline.net
72.35.97.23	A	23-97-35-72.mtaonline.net
72.35.97.66	A	66-97-35-72.mtaonline.net
72.35.97.85	A+PTR	85-97-35-72.mtaonline.net
72.35.97.104	A	104-97-35-72.mtaonline.net
72.35.97.108	A	108-97-35-72.mtaonline.net
72.35.97.114	A+PTR	114-97-35-72.mtaonline.net
72.35.97.161	A+PTR	161-97-35-72.mtaonline.net
72.35.97.164	A+PTR	164-97-35-72.mtaonline.net
72.35.97.188	PTR	188-97-35-72.mtaonline.net
72.35.97.199	A	199-97-35-72.mtaonline.net
72.35.97.210	A	210-97-35-72.mtaonline.net
72.35.97.214	A+PTR	214-97-35-72.mtaonline.net
72.35.97.242	A	242-97-35-72.mtaonline.net
72.35.97.246	A	246-97-35-72.mtaonline.net
72.35.98.0	A+PTR	0-98-35-72.mtaonline.net
72.35.98.15	A	15-98-35-72.mtaonline.net
72.35.98.55	A	55-98-35-72.mtaonline.net
72.35.98.60	A	60-98-35-72.mtaonline.net
72.35.98.90	A	90-98-35-72.mtaonline.net
72.35.98.147	PTR	147-98-35-72.mtaonline.net
72.35.98.155	A	155-98-35-72.mtaonline.net
72.35.98.176	A+PTR	176-98-35-72.mtaonline.net
72.35.98.225	A	225-98-35-72.mtaonline.net
72.35.99.0	A+PTR	0-99-35-72.mtaonline.net
72.35.99.72	A+PTR	72-99-35-72.mtaonline.net
72.35.99.132	A+PTR	132-99-35-72.mtaonline.net
72.35.99.152	PTR	152-99-35-72.mtaonline.net
72.35.99.182	A+PTR	182-99-35-72.mtaonline.net
72.35.99.221	A	221-99-35-72.mtaonline.net
72.35.99.225	PTR	225-99-35-72.mtaonline.net